schema.py
author Julien Cristau <julien.cristau@logilab.fr>
Tue, 08 Sep 2015 16:26:56 +0200
changeset 10653 42c5bd7286b7
parent 10612 84468b90e9c1
child 10661 e6eb0c7c2e98
permissions -rw-r--r--
[schema] improve normalization of RQLExpressions Parse and print back the expression instead of manipulating the string. Among other benefits, it means we don't mangle embedded string constants that contain commas or multiple spaces. Closes #6694426
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""classes to define schemas for CubicWeb"""
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from __future__ import print_function
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__docformat__ = "restructuredtext en"
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_ = unicode
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import re
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from os.path import join, basename
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from logging import getLogger
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from warnings import warn
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from six import string_types
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from six.moves import range
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from logilab.common import tempattr
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from logilab.common.decorators import cached, clear_cache, monkeypatch, cachedproperty
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from logilab.common.logging_ext import set_log_methods
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from logilab.common.deprecation import deprecated, class_moved, moved
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from logilab.common.textutils import splitstrip
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from logilab.common.graph import get_cycles
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import yams
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from yams import BadSchemaDefinition, buildobjs as ybo
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from yams.schema import Schema, ERSchema, EntitySchema, RelationSchema, \
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     RelationDefinitionSchema, PermissionMixIn, role_name
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from yams.constraints import (BaseConstraint, FormatConstraint, BoundaryConstraint,
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                              IntervalBoundConstraint, StaticVocabularyConstraint)
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from yams.reader import (CONSTRAINTS, PyFileReader, SchemaLoader,
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                         cleanup_sys_modules, fill_schema_from_namespace)
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from rql import parse, nodes, RQLSyntaxError, TypeResolverException
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from rql.analyze import ETypeResolver
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import cubicweb
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from cubicweb import ETYPE_NAME_MAP, ValidationError, Unauthorized
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try:
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    from cubicweb import server
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except ImportError:
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    # We need to lookup DEBUG from there,
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    # however a pure dbapi client may not have it.
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    class server(object): pass
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    server.DEBUG = False
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PURE_VIRTUAL_RTYPES = set(('identity', 'has_text',))
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VIRTUAL_RTYPES = set(('eid', 'identity', 'has_text',))
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# set of meta-relations available for every entity types
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META_RTYPES = set((
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    'owned_by', 'created_by', 'is', 'is_instance_of', 'identity',
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    'eid', 'creation_date', 'cw_source', 'modification_date', 'has_text', 'cwuri',
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    ))
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WORKFLOW_RTYPES = set(('custom_workflow', 'in_state', 'wf_info_for'))
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WORKFLOW_DEF_RTYPES = set(('workflow_of', 'state_of', 'transition_of',
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                           'initial_state', 'default_workflow',
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                           'allowed_transition', 'destination_state',
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                           'from_state', 'to_state', 'condition',
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                           'subworkflow', 'subworkflow_state', 'subworkflow_exit',
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                           'by_transition',
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                           ))
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SYSTEM_RTYPES = set(('in_group', 'require_group',
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                     # cwproperty
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                     'for_user',
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                     'cw_schema', 'cw_import_of', 'cw_for_source',
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                     'cw_host_config_of',
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                     )) | WORKFLOW_RTYPES
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NO_I18NCONTEXT = META_RTYPES | WORKFLOW_RTYPES
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SKIP_COMPOSITE_RELS = [('cw_source', 'subject')]
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# set of entity and relation types used to build the schema
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SCHEMA_TYPES = set((
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    'CWEType', 'CWRType', 'CWComputedRType', 'CWAttribute', 'CWRelation',
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    'CWConstraint', 'CWConstraintType', 'CWUniqueTogetherConstraint',
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    'RQLExpression',
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    'specializes',
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    'relation_type', 'from_entity', 'to_entity',
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    'constrained_by', 'cstrtype',
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    'constraint_of', 'relations',
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    'read_permission', 'add_permission',
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    'delete_permission', 'update_permission',
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    ))
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WORKFLOW_TYPES = set(('Transition', 'State', 'TrInfo', 'Workflow',
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                      'WorkflowTransition', 'BaseTransition',
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                      'SubWorkflowExitPoint'))
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INTERNAL_TYPES = set(('CWProperty', 'CWCache', 'ExternalUri', 'CWDataImport',
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                      'CWSource', 'CWSourceHostConfig', 'CWSourceSchemaConfig'))
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_LOGGER = getLogger('cubicweb.schemaloader')
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# entity and relation schema created from serialized schema have an eid
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ybo.ETYPE_PROPERTIES += ('eid',)
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ybo.RTYPE_PROPERTIES += ('eid',)
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def build_schema_from_namespace(items):
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    schema = CubicWebSchema('noname')
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    fill_schema_from_namespace(schema, items, register_base_types=False)
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    return schema
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# Bases for manipulating RQL in schema #########################################
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def guess_rrqlexpr_mainvars(expression):
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    defined = set(split_expression(expression))
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    mainvars = set()
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    if 'S' in defined:
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        mainvars.add('S')
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    if 'O' in defined:
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        mainvars.add('O')
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    if 'U' in defined:
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        mainvars.add('U')
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    if not mainvars:
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        raise BadSchemaDefinition('unable to guess selection variables in %r'
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                                  % expression)
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    return mainvars
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def split_expression(rqlstring):
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    for expr in rqlstring.split(','):
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        for noparen1 in expr.split('('):
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            for noparen2 in noparen1.split(')'):
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                for word in noparen2.split():
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                    yield word
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def normalize_expression(rqlstring):
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    """normalize an rql expression to ease schema synchronization (avoid
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    suppressing and reinserting an expression if only a space has been
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    added/removed for instance)
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    """
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    union = parse(u'Any 1 WHERE %s' % rqlstring).as_string()
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    if isinstance(union, str):
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        union = union.decode('utf-8')
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    return union.split(' WHERE ', 1)[1]
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def _check_valid_formula(rdef, formula_rqlst):
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    """Check the formula is a valid RQL query with some restriction (no union,
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    single selected node, etc.), raise BadSchemaDefinition if not
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    """
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    if len(formula_rqlst.children) != 1:
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        raise BadSchemaDefinition('computed attribute %(attr)s on %(etype)s: '
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                                  'can not use UNION in formula %(form)r' %
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                                  {'attr' : rdef.rtype,
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                                   'etype' : rdef.subject.type,
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                                   'form' : rdef.formula})
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    select = formula_rqlst.children[0]
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    if len(select.selection) != 1:
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        raise BadSchemaDefinition('computed attribute %(attr)s on %(etype)s: '
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                                  'can only select one term in formula %(form)r' %
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                                  {'attr' : rdef.rtype,
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                                   'etype' : rdef.subject.type,
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                                   'form' : rdef.formula})
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    term = select.selection[0]
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    types = set(term.get_type(sol) for sol in select.solutions)
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    if len(types) != 1:
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        raise BadSchemaDefinition('computed attribute %(attr)s on %(etype)s: '
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                                  'multiple possible types (%(types)s) for formula %(form)r' %
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                                  {'attr' : rdef.rtype,
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                                   'etype' : rdef.subject.type,
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                                   'types' : list(types),
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                                   'form' : rdef.formula})
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    computed_type = types.pop()
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    expected_type = rdef.object.type
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    if computed_type != expected_type:
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        raise BadSchemaDefinition('computed attribute %(attr)s on %(etype)s: '
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                                  'computed attribute type (%(comp_type)s) mismatch with '
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                                  'specified type (%(attr_type)s)' %
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                                  {'attr' : rdef.rtype,
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                                   'etype' : rdef.subject.type,
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                                   'comp_type' : computed_type,
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                                   'attr_type' : expected_type})
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class RQLExpression(object):
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    """Base class for RQL expression used in schema (constraints and
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    permissions)
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    """
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    # these are overridden by set_log_methods below
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    # only defining here to prevent pylint from complaining
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    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
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    # to be defined in concrete classes
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    rqlst = None
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    predefined_variables = None
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    full_rql = None
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    def __init__(self, expression, mainvars, eid):
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        """
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        :type mainvars: sequence of RQL variables' names. Can be provided as a
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                        comma separated string.
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        :param mainvars: names of the variables being selected.
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        """
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        self.eid = eid # eid of the entity representing this rql expression
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        assert mainvars, 'bad mainvars %s' % mainvars
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        if isinstance(mainvars, string_types):
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            mainvars = set(splitstrip(mainvars))
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        elif not isinstance(mainvars, set):
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            mainvars = set(mainvars)
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        self.mainvars = mainvars
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        self.expression = normalize_expression(expression)
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        try:
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            self.full_rql = self.rqlst.as_string()
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        except RQLSyntaxError:
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            raise RQLSyntaxError(expression)
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        for mainvar in mainvars:
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            # if variable is predefined, an extra reference is inserted
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            # automatically (`VAR eid %(v)s`)
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            if mainvar in self.predefined_variables:
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                min_refs = 3
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   229
            else:
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                min_refs = 2
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            if len(self.rqlst.defined_vars[mainvar].references()) < min_refs:
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                _LOGGER.warn('You did not use the %s variable in your RQL '
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                             'expression %s', mainvar, self)
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        # syntax tree used by read security (inserted in queries when necessary)
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        self.snippet_rqlst = parse(self.minimal_rql, print_errors=False).children[0]
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        # graph of links between variables, used by rql rewriter
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        self.vargraph = vargraph(self.rqlst)
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        # useful for some instrumentation, e.g. localperms permcheck command
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        self.package = ybo.PACKAGE
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    def __str__(self):
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        return self.full_rql
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    def __repr__(self):
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        return '%s(%s)' % (self.__class__.__name__, self.full_rql)
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    def __lt__(self, other):
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        if hasattr(other, 'expression'):
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            return self.expression < other.expression
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        return True
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    def __eq__(self, other):
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        if hasattr(other, 'expression'):
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            return self.expression == other.expression
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        return False
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    def __hash__(self):
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        return hash(self.expression)
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    def __deepcopy__(self, memo):
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        return self.__class__(self.expression, self.mainvars)
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    def __getstate__(self):
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        return (self.expression, self.mainvars)
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    def __setstate__(self, state):
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        self.__init__(*state)
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    @cachedproperty
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    def rqlst(self):
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        select = parse(self.minimal_rql, print_errors=False).children[0]
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        defined = set(split_expression(self.expression))
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        for varname in self.predefined_variables:
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            if varname in defined:
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                select.add_eid_restriction(select.get_variable(varname), varname.lower(), 'Substitute')
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        return select
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    # permission rql expression specific stuff #################################
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   276
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    @cached
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    def transform_has_permission(self):
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        found = None
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        rqlst = self.rqlst
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        for var in rqlst.defined_vars.itervalues():
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            for varref in var.references():
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                rel = varref.relation()
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                if rel is None:
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                    continue
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                try:
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                    prefix, action, suffix = rel.r_type.split('_')
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   288
                except ValueError:
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                    continue
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                if prefix != 'has' or suffix != 'permission' or \
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                       not action in ('add', 'delete', 'update', 'read'):
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   292
                    continue
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   293
                if found is None:
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   294
                    found = []
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                    rqlst.save_state()
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   296
                assert rel.children[0].name == 'U'
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   297
                objvar = rel.children[1].children[0].variable
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   298
                rqlst.remove_node(rel)
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   299
                selected = [v.name for v in rqlst.get_selected_variables()]
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   300
                if objvar.name not in selected:
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   301
                    colindex = len(selected)
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   302
                    rqlst.add_selected(objvar)
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   303
                else:
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   304
                    colindex = selected.index(objvar.name)
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   305
                found.append((action, colindex))
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   306
                # remove U eid %(u)s if U is not used in any other relation
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   307
                uvrefs = rqlst.defined_vars['U'].references()
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   308
                if len(uvrefs) == 1:
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   309
                    rqlst.remove_node(uvrefs[0].relation())
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   310
        if found is not None:
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   311
            rql = rqlst.as_string()
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   312
            if len(rqlst.selection) == 1 and isinstance(rqlst.where, nodes.Relation):
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   313
                # only "Any X WHERE X eid %(x)s" remaining, no need to execute the rql
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   314
                keyarg = rqlst.selection[0].name.lower()
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   315
            else:
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   316
                keyarg = None
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   317
            rqlst.recover()
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   318
            return rql, found, keyarg
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   319
        return rqlst.as_string(), None, None
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   320
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   321
    def _check(self, _cw, **kwargs):
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   322
        """return True if the rql expression is matching the given relation
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   323
        between fromeid and toeid
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   324
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   325
        _cw may be a request or a server side transaction
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   326
        """
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   327
        creating = kwargs.get('creating')
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   328
        if not creating and self.eid is not None:
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   329
            key = (self.eid, tuple(sorted(kwargs.iteritems())))
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   330
            try:
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   331
                return _cw.local_perm_cache[key]
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   332
            except KeyError:
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   333
                pass
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   334
        rql, has_perm_defs, keyarg = self.transform_has_permission()
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   335
        # when creating an entity, expression related to X satisfied
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   336
        if creating and 'X' in self.rqlst.defined_vars:
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   337
            return True
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   338
        if keyarg is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   339
            kwargs.setdefault('u', _cw.user.eid)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   340
            try:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   341
                rset = _cw.execute(rql, kwargs, build_descr=True)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   342
            except NotImplementedError:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   343
                self.critical('cant check rql expression, unsupported rql %s', rql)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   344
                if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   345
                    _cw.local_perm_cache[key] = False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   346
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   347
            except TypeResolverException as ex:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   348
                # some expression may not be resolvable with current kwargs
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   349
                # (type conflict)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   350
                self.warning('%s: %s', rql, str(ex))
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   351
                if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   352
                    _cw.local_perm_cache[key] = False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   353
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   354
            except Unauthorized as ex:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   355
                self.debug('unauthorized %s: %s', rql, str(ex))
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   356
                if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   357
                    _cw.local_perm_cache[key] = False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   358
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   359
        else:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   360
            rset = _cw.eid_rset(kwargs[keyarg])
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   361
        # if no special has_*_permission relation in the rql expression, just
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   362
        # check the result set contains something
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   363
        if has_perm_defs is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   364
            if rset:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   365
                if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   366
                    _cw.local_perm_cache[key] = True
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   367
                return True
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   368
        elif rset:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   369
            # check every special has_*_permission relation is satisfied
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   370
            get_eschema = _cw.vreg.schema.eschema
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   371
            try:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   372
                for eaction, col in has_perm_defs:
10609
e2d8e81bfe68 [py3k] import range using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10589
diff changeset
   373
                    for i in range(len(rset)):
9393
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   374
                        eschema = get_eschema(rset.description[i][col])
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   375
                        eschema.check_perm(_cw, eaction, eid=rset[i][col])
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   376
                if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   377
                    _cw.local_perm_cache[key] = True
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   378
                return True
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   379
            except Unauthorized:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   380
                pass
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   381
        if self.eid is not None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   382
            _cw.local_perm_cache[key] = False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   383
        return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   384
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   385
    @property
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   386
    def minimal_rql(self):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   387
        return 'Any %s WHERE %s' % (','.join(sorted(self.mainvars)),
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   388
                                    self.expression)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   389
9395
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   390
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   391
9393
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   392
# rql expressions for use in permission definition #############################
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   393
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   394
class ERQLExpression(RQLExpression):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   395
    predefined_variables = 'XU'
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   396
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   397
    def __init__(self, expression, mainvars=None, eid=None):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   398
        RQLExpression.__init__(self, expression, mainvars or 'X', eid)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   399
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   400
    def check(self, _cw, eid=None, creating=False, **kwargs):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   401
        if 'X' in self.rqlst.defined_vars:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   402
            if eid is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   403
                if creating:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   404
                    return self._check(_cw, creating=True, **kwargs)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   405
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   406
            assert creating == False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   407
            return self._check(_cw, x=eid, **kwargs)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   408
        return self._check(_cw, **kwargs)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   409
9600
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   410
def constraint_by_eid(self, eid):
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   411
    for cstr in self.constraints:
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   412
        if cstr.eid == eid:
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   413
            return cstr
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   414
    raise ValueError('No constraint with eid %d' % eid)
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   415
RelationDefinitionSchema.constraint_by_eid = constraint_by_eid
bde625698f44 [merge] bring the 3.17.14 fixes to 3.18
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9395 9565
diff changeset
   416
9393
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   417
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   418
def vargraph(rqlst):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   419
    """ builds an adjacency graph of variables from the rql syntax tree, e.g:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   420
    Any O,S WHERE T subworkflow_exit S, T subworkflow WF, O state_of WF
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   421
    => {'WF': ['O', 'T'], 'S': ['T'], 'T': ['WF', 'S'], 'O': ['WF']}
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   422
    """
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   423
    vargraph = {}
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   424
    for relation in rqlst.get_nodes(nodes.Relation):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   425
        try:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   426
            rhsvarname = relation.children[1].children[0].variable.name
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   427
            lhsvarname = relation.children[0].name
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   428
        except AttributeError:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   429
            pass
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   430
        else:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   431
            vargraph.setdefault(lhsvarname, []).append(rhsvarname)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   432
            vargraph.setdefault(rhsvarname, []).append(lhsvarname)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   433
            #vargraph[(lhsvarname, rhsvarname)] = relation.r_type
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   434
    return vargraph
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   435
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   436
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   437
class GeneratedConstraint(object):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   438
    def __init__(self, rqlst, mainvars):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   439
        self.snippet_rqlst = rqlst
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   440
        self.mainvars = mainvars
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   441
        self.vargraph = vargraph(rqlst)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   442
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   443
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   444
class RRQLExpression(RQLExpression):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   445
    predefined_variables = 'SOU'
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   446
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   447
    def __init__(self, expression, mainvars=None, eid=None):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   448
        if mainvars is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   449
            mainvars = guess_rrqlexpr_mainvars(expression)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   450
        RQLExpression.__init__(self, expression, mainvars, eid)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   451
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   452
    def check(self, _cw, fromeid=None, toeid=None):
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   453
        kwargs = {}
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   454
        if 'S' in self.rqlst.defined_vars:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   455
            if fromeid is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   456
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   457
            kwargs['s'] = fromeid
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   458
        if 'O' in self.rqlst.defined_vars:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   459
            if toeid is None:
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   460
                return False
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   461
            kwargs['o'] = toeid
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   462
        return self._check(_cw, **kwargs)
8266c8c375bb [schema] move definition of RQLExpression classes before default permission dicts
Julien Cristau <julien.cristau@logilab.fr>
parents: 9366
diff changeset
   463
9395
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   464
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   465
# In yams, default 'update' perm for attributes granted to managers and owners.
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   466
# Within cw, we want to default to users who may edit the entity holding the
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   467
# attribute.
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   468
# These default permissions won't be checked by the security hooks:
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   469
# since they delegate checking to the entity, we can skip actual checks.
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   470
ybo.DEFAULT_ATTRPERMS['update'] = ('managers', ERQLExpression('U has_update_permission X'))
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   471
ybo.DEFAULT_ATTRPERMS['add'] = ('managers', ERQLExpression('U has_add_permission X'))
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   472
10553
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   473
# we don't want 'add' or 'delete' permissions on computed relation types
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   474
# (they're hardcoded to '()' on computed relation definitions)
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   475
if 'add' in yams.DEFAULT_COMPUTED_RELPERMS:
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   476
    del yams.DEFAULT_COMPUTED_RELPERMS['add']
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   477
if 'delete' in yams.DEFAULT_COMPUTED_RELPERMS:
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   478
    del yams.DEFAULT_COMPUTED_RELPERMS['delete']
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   479
9395
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   480
4754
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   481
PUB_SYSTEM_ENTITY_PERMS = {
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   482
    'read':   ('managers', 'users', 'guests',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   483
    'add':    ('managers',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   484
    'delete': ('managers',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   485
    'update': ('managers',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   486
    }
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   487
PUB_SYSTEM_REL_PERMS = {
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   488
    'read':   ('managers', 'users', 'guests',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   489
    'add':    ('managers',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   490
    'delete': ('managers',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   491
    }
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   492
PUB_SYSTEM_ATTR_PERMS = {
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   493
    'read':   ('managers', 'users', 'guests',),
9395
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   494
    'add': ('managers',),
6944
0cf10429ad39 [sources] rewrite the way pyrorql mapping are stored in the database so it can be reused for other sources (eg datafeed+cwxml)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6861
diff changeset
   495
    'update': ('managers',),
4754
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   496
    }
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   497
RO_REL_PERMS = {
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   498
    'read':   ('managers', 'users', 'guests',),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   499
    'add':    (),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   500
    'delete': (),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   501
    }
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   502
RO_ATTR_PERMS = {
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   503
    'read':   ('managers', 'users', 'guests',),
9395
96dba2efd16d [hooks/security] provide attribute "add" permission
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9393
diff changeset
   504
    'add': ybo.DEFAULT_ATTRPERMS['add'],
4754
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   505
    'update': (),
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   506
    }
6bf17f810975 [schema] new constants for permissions definitions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4717
diff changeset
   507
2926
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   508
# XXX same algorithm as in reorder_cubes and probably other place,
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   509
# may probably extract a generic function
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   510
def order_eschemas(eschemas):
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   511
    """return entity schemas ordered such that entity types which specializes an
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   512
    other one appears after that one
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   513
    """
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   514
    graph = {}
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   515
    for eschema in eschemas:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   516
        if eschema.specializes():
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   517
            graph[eschema] = set((eschema.specializes(),))
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   518
        else:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   519
            graph[eschema] = set()
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   520
    cycles = get_cycles(graph)
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   521
    if cycles:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   522
        cycles = '\n'.join(' -> '.join(cycle) for cycle in cycles)
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   523
        raise Exception('cycles in entity schema specialization: %s'
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   524
                        % cycles)
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   525
    eschemas = []
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   526
    while graph:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   527
        # sorted to get predictable results
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   528
        for eschema, deps in sorted(graph.items()):
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   529
            if not deps:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   530
                eschemas.append(eschema)
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   531
                del graph[eschema]
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   532
                for deps in graph.itervalues():
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   533
                    try:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   534
                        deps.remove(eschema)
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   535
                    except KeyError:
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   536
                        continue
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   537
    return eschemas
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
   538
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   539
def bw_normalize_etype(etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   540
    if etype in ETYPE_NAME_MAP:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   541
        msg = '%s has been renamed to %s, please update your code' % (
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   542
            etype, ETYPE_NAME_MAP[etype])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   543
        warn(msg, DeprecationWarning, stacklevel=4)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   544
        etype = ETYPE_NAME_MAP[etype]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   545
    return etype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   546
3275
5247789df541 [gettext] provide GNU contexts to avoid translations ambiguities
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3240
diff changeset
   547
def display_name(req, key, form='', context=None):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   548
    """return a internationalized string for the key (schema entity or relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   549
    name) in a given form
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   550
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   551
    assert form in ('', 'plural', 'subject', 'object')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   552
    if form == 'subject':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   553
        form = ''
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   554
    if form:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   555
        key = key + '_' + form
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   556
    # ensure unicode
3284
036cf5a25714 ensure pgettext return unicode as well
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3275
diff changeset
   557
    if context is not None:
7951
b7c825b00f64 [schema display] display_name shouldn't call .lower(). Note the only proper way is to have different msgid for upper/lower cases. Closes #1105433
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7894
diff changeset
   558
        return unicode(req.pgettext(context, key))
3275
5247789df541 [gettext] provide GNU contexts to avoid translations ambiguities
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3240
diff changeset
   559
    else:
7951
b7c825b00f64 [schema display] display_name shouldn't call .lower(). Note the only proper way is to have different msgid for upper/lower cases. Closes #1105433
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7894
diff changeset
   560
        return unicode(req._(key))
3275
5247789df541 [gettext] provide GNU contexts to avoid translations ambiguities
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3240
diff changeset
   561
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   562
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   563
# Schema objects definition ###################################################
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   564
3471
8c57c71b859c can now give context to rschema.display_name(...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3401
diff changeset
   565
def ERSchema_display_name(self, req, form='', context=None):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   566
    """return a internationalized string for the entity/relation type name in
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   567
    a given form
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   568
    """
3471
8c57c71b859c can now give context to rschema.display_name(...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3401
diff changeset
   569
    return display_name(req, self.type, form, context)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   570
ERSchema.display_name = ERSchema_display_name
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   571
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   572
@cached
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   573
def get_groups(self, action):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   574
    """return the groups authorized to perform <action> on entities of
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   575
    this type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   576
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   577
    :type action: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   578
    :param action: the name of a permission
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   579
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   580
    :rtype: tuple
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   581
    :return: names of the groups with the given permission
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   582
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   583
    assert action in self.ACTIONS, action
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   584
    #assert action in self._groups, '%s %s' % (self, action)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   585
    try:
10612
84468b90e9c1 [py3k] basestring → six.string_types
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10609
diff changeset
   586
        return frozenset(g for g in self.permissions[action] if isinstance(g, string_types))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   587
    except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   588
        return ()
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   589
PermissionMixIn.get_groups = get_groups
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   590
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   591
@cached
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   592
def get_rqlexprs(self, action):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   593
    """return the rql expressions representing queries to check the user is allowed
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   594
    to perform <action> on entities of this type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   595
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   596
    :type action: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   597
    :param action: the name of a permission
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   598
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   599
    :rtype: tuple
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   600
    :return: the rql expressions with the given permission
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   601
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   602
    assert action in self.ACTIONS, action
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   603
    #assert action in self._rqlexprs, '%s %s' % (self, action)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   604
    try:
10612
84468b90e9c1 [py3k] basestring → six.string_types
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10609
diff changeset
   605
        return tuple(g for g in self.permissions[action] if not isinstance(g, string_types))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   606
    except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   607
        return ()
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   608
PermissionMixIn.get_rqlexprs = get_rqlexprs
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   609
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   610
orig_set_action_permissions = PermissionMixIn.set_action_permissions
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   611
def set_action_permissions(self, action, permissions):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   612
    """set the groups and rql expressions allowing to perform <action> on
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   613
    entities of this type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   614
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   615
    :type action: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   616
    :param action: the name of a permission
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   617
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   618
    :type permissions: tuple
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   619
    :param permissions: the groups and rql expressions allowing the given action
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   620
    """
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   621
    orig_set_action_permissions(self, action, tuple(permissions))
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   622
    clear_cache(self, 'get_rqlexprs')
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   623
    clear_cache(self, 'get_groups')
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   624
PermissionMixIn.set_action_permissions = set_action_permissions
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   625
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   626
def has_local_role(self, action):
10140
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
   627
    """return true if the action *may* be granted locally (i.e. either rql
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   628
    expressions or the owners group are used in security definition)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   629
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   630
    XXX this method is only there since we don't know well how to deal with
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   631
    'add' action checking. Also find a better name would be nice.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   632
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   633
    assert action in self.ACTIONS, action
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   634
    if self.get_rqlexprs(action):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   635
        return True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   636
    if action in ('update', 'delete'):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   637
        return 'owners' in self.get_groups(action)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   638
    return False
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   639
PermissionMixIn.has_local_role = has_local_role
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   640
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   641
def may_have_permission(self, action, req):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   642
    if action != 'read' and not (self.has_local_role('read') or
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   643
                                 self.has_perm(req, 'read')):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   644
        return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   645
    return self.has_local_role(action) or self.has_perm(req, action)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   646
PermissionMixIn.may_have_permission = may_have_permission
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   647
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   648
def has_perm(self, _cw, action, **kwargs):
9817
bb719d857421 [schema] spelling fixes in doc strings
Julien Cristau <julien.cristau@logilab.fr>
parents: 9711
diff changeset
   649
    """return true if the action is granted globally or locally"""
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   650
    try:
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   651
        self.check_perm(_cw, action, **kwargs)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   652
        return True
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   653
    except Unauthorized:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   654
        return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   655
PermissionMixIn.has_perm = has_perm
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   656
9148
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   657
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   658
def check_perm(self, _cw, action, **kwargs):
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   659
    # NB: _cw may be a server transaction or a request object.
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   660
    #
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   661
    # check user is in an allowed group, if so that's enough internal
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   662
    # transactions should always stop there
9148
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   663
    DBG = False
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   664
    if server.DEBUG & server.DBG_SEC:
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   665
        if action in server._SECURITY_CAPS:
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   666
            _self_str = str(self)
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   667
            if server._SECURITY_ITEMS:
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   668
                if any(item in _self_str for item in server._SECURITY_ITEMS):
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   669
                    DBG = True
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   670
            else:
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   671
                DBG = True
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   672
    groups = self.get_groups(action)
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   673
    if _cw.user.matching_groups(groups):
9148
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   674
        if DBG:
10589
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   675
            print('check_perm: %r %r: user matches %s' % (action, _self_str, groups))
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   676
        return
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   677
    # if 'owners' in allowed groups, check if the user actually owns this
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   678
    # object, if so that's enough
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   679
    #
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   680
    # NB: give _cw to user.owns since user is not be bound to a transaction on
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   681
    # the repository side
4607
55eab66c6592 [schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4586
diff changeset
   682
    if 'owners' in groups and (
55eab66c6592 [schema security] fix so that when cheking attributes perms for an entity being created, 'owners' and has_*_permission in erqlexpr are considered satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4586
diff changeset
   683
          kwargs.get('creating')
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   684
          or ('eid' in kwargs and _cw.user.owns(kwargs['eid']))):
9148
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   685
        if DBG:
10589
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   686
            print('check_perm: %r %r: user is owner or creation time' %
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   687
                  (action, _self_str))
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   688
        return
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   689
    # else if there is some rql expressions, check them
9148
1b549c1acd4f [schema,server] add a security debugging aid (closes #2920304)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8945
diff changeset
   690
    if DBG:
10589
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   691
        print('check_perm: %r %r %s' %
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   692
              (action, _self_str, [(rqlexpr, kwargs, rqlexpr.check(_cw, **kwargs))
7c23b7de2b8d [py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents: 10553
diff changeset
   693
                                   for rqlexpr in self.get_rqlexprs(action)]))
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   694
    if any(rqlexpr.check(_cw, **kwargs)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   695
           for rqlexpr in self.get_rqlexprs(action)):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   696
        return
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   697
    raise Unauthorized(action, str(self))
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   698
PermissionMixIn.check_perm = check_perm
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   699
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   700
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   701
RelationDefinitionSchema._RPROPERTIES['eid'] = None
8945
ba9e3fbfa5a5 [schemaserial] serialize additional yams parameter for customs type
Vincent Michel <vincent.michel@logilab.fr>
parents: 8892
diff changeset
   702
# remember rproperties defined at this point. Others will have to be serialized in
ba9e3fbfa5a5 [schemaserial] serialize additional yams parameter for customs type
Vincent Michel <vincent.michel@logilab.fr>
parents: 8892
diff changeset
   703
# CWAttribute.extra_props
ba9e3fbfa5a5 [schemaserial] serialize additional yams parameter for customs type
Vincent Michel <vincent.michel@logilab.fr>
parents: 8892
diff changeset
   704
KNOWN_RPROPERTIES = RelationDefinitionSchema.ALL_PROPERTIES()
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   705
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   706
def rql_expression(self, expression, mainvars=None, eid=None):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   707
    """rql expression factory"""
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   708
    if self.rtype.final:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   709
        return ERQLExpression(expression, mainvars, eid)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   710
    return RRQLExpression(expression, mainvars, eid)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   711
RelationDefinitionSchema.rql_expression = rql_expression
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   712
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   713
orig_check_permission_definitions = RelationDefinitionSchema.check_permission_definitions
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   714
def check_permission_definitions(self):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   715
    orig_check_permission_definitions(self)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   716
    schema = self.subject.schema
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   717
    for action, groups in self.permissions.iteritems():
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   718
        for group_or_rqlexpr in groups:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   719
            if action == 'read' and \
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   720
                   isinstance(group_or_rqlexpr, RQLExpression):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   721
                msg = "can't use rql expression for read permission of %s"
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   722
                raise BadSchemaDefinition(msg % self)
4574
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   723
            if self.final and isinstance(group_or_rqlexpr, RRQLExpression):
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   724
                msg = "can't use RRQLExpression on %s, use an ERQLExpression"
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   725
                raise BadSchemaDefinition(msg % self)
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   726
            if not self.final and isinstance(group_or_rqlexpr, ERQLExpression):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   727
                msg = "can't use ERQLExpression on %s, use a RRQLExpression"
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   728
                raise BadSchemaDefinition(msg % self)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   729
RelationDefinitionSchema.check_permission_definitions = check_permission_definitions
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   730
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   731
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   732
class CubicWebEntitySchema(EntitySchema):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   733
    """a entity has a type, a set of subject and or object relations
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   734
    the entity schema defines the possible relations for a given type and some
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   735
    constraints on those relations
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   736
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   737
    def __init__(self, schema=None, edef=None, eid=None, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   738
        super(CubicWebEntitySchema, self).__init__(schema, edef, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   739
        if eid is None and edef is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   740
            eid = getattr(edef, 'eid', None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   741
        self.eid = eid
4574
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   742
9547
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   743
    def targets(self, role):
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   744
        assert role in ('subject', 'object')
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   745
        if role == 'subject':
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   746
            return self.subjrels.values()
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   747
        return self.objrels.values()
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   748
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   749
    @cachedproperty
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   750
    def composite_rdef_roles(self):
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   751
        """Return all relation definitions that define the current entity
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   752
        type as a composite.
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   753
        """
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   754
        rdef_roles = []
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   755
        for role in ('subject', 'object'):
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   756
            for rschema in self.targets(role):
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   757
                if rschema.final:
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   758
                    continue
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   759
                for rdef in rschema.rdefs.values():
9711
59616edc20d7 [schema] fix buggy composite_rdef_roles and associated test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9660
diff changeset
   760
                    if (role == 'subject' and rdef.subject == self) or \
59616edc20d7 [schema] fix buggy composite_rdef_roles and associated test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9660
diff changeset
   761
                            (role == 'object' and rdef.object == self):
59616edc20d7 [schema] fix buggy composite_rdef_roles and associated test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9660
diff changeset
   762
                        crole = rdef.composite
59616edc20d7 [schema] fix buggy composite_rdef_roles and associated test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9660
diff changeset
   763
                        if crole == role:
59616edc20d7 [schema] fix buggy composite_rdef_roles and associated test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9660
diff changeset
   764
                            rdef_roles.append((rdef, role))
9547
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   765
        return rdef_roles
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   766
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   767
    @cachedproperty
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   768
    def is_composite(self):
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   769
        return bool(len(self.composite_rdef_roles))
43aace16a953 [schema] add composite handling helpers on EntitySchema (related to #3463112)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9469
diff changeset
   770
4574
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   771
    def check_permission_definitions(self):
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   772
        super(CubicWebEntitySchema, self).check_permission_definitions()
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   773
        for groups in self.permissions.itervalues():
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   774
            for group_or_rqlexpr in groups:
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   775
                if isinstance(group_or_rqlexpr, RRQLExpression):
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   776
                    msg = "can't use RRQLExpression on %s, use an ERQLExpression"
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   777
                    raise BadSchemaDefinition(msg % self.type)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   778
6951
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   779
    def is_subobject(self, strict=False, skiprels=None):
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   780
        if skiprels is None:
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   781
            skiprels = SKIP_COMPOSITE_RELS
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   782
        else:
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   783
            skiprels += SKIP_COMPOSITE_RELS
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   784
        return super(CubicWebEntitySchema, self).is_subobject(strict,
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   785
                                                              skiprels=skiprels)
cb6314b09e0f [schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6949
diff changeset
   786
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   787
    def attribute_definitions(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   788
        """return an iterator on attribute definitions
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   789
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   790
        attribute relations are a subset of subject relations where the
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   791
        object's type is a final entity
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   792
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   793
        an attribute definition is a 2-uple :
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   794
        * name of the relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   795
        * schema of the destination entity type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   796
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   797
        iter = super(CubicWebEntitySchema, self).attribute_definitions()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   798
        for rschema, attrschema in iter:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   799
            if rschema.type == 'has_text':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   800
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   801
            yield rschema, attrschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   802
2128
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   803
    def main_attribute(self):
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   804
        """convenience method that returns the *main* (i.e. the first non meta)
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   805
        attribute defined in the entity schema
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   806
        """
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   807
        for rschema, _ in self.attribute_definitions():
2622
3c7edaa6c6d2 oops, should have been in a earlier commit (META_RELATION_TYPES renaming)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2616
diff changeset
   808
            if not (rschema in META_RTYPES
2128
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   809
                    or self.is_metadata(rschema)):
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   810
                return rschema
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   811
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   812
    def add_subject_relation(self, rschema):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   813
        """register the relation schema as possible subject relation"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   814
        super(CubicWebEntitySchema, self).add_subject_relation(rschema)
7467
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   815
        if rschema.final:
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   816
            if self.rdef(rschema).get('fulltextindexed'):
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   817
                self._update_has_text()
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   818
        elif rschema.fulltext_container:
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   819
            self._update_has_text()
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   820
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   821
    def add_object_relation(self, rschema):
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   822
        """register the relation schema as possible object relation"""
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   823
        super(CubicWebEntitySchema, self).add_object_relation(rschema)
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   824
        if rschema.fulltext_container:
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   825
            self._update_has_text()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   826
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   827
    def del_subject_relation(self, rtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   828
        super(CubicWebEntitySchema, self).del_subject_relation(rtype)
7467
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   829
        if 'has_text' in self.subjrels:
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   830
            self._update_has_text(deletion=True)
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   831
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   832
    def del_object_relation(self, rtype):
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   833
        super(CubicWebEntitySchema, self).del_object_relation(rtype)
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   834
        if 'has_text' in self.subjrels:
5a6b3e51807d [schema] fix computing of has_text relation: when a fulltext_container relation is added, we need to recompute has_text for the target entity type as well. Also, avoid computation when not needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   835
            self._update_has_text(deletion=True)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   836
2632
920bfaff60a4 B [schema update] may remove has_text unexpectedly, give another argument to fix it
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2622
diff changeset
   837
    def _update_has_text(self, deletion=False):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   838
        may_need_has_text, has_has_text = False, False
2632
920bfaff60a4 B [schema update] may remove has_text unexpectedly, give another argument to fix it
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2622
diff changeset
   839
        need_has_text = None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   840
        for rschema in self.subject_relations():
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3554
diff changeset
   841
            if rschema.final:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   842
                if rschema == 'has_text':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   843
                    has_has_text = True
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   844
                elif self.rdef(rschema).get('fulltextindexed'):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   845
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   846
            elif rschema.fulltext_container:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   847
                if rschema.fulltext_container == 'subject':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   848
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   849
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   850
                    need_has_text = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   851
        for rschema in self.object_relations():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   852
            if rschema.fulltext_container:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   853
                if rschema.fulltext_container == 'object':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   854
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   855
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   856
                    need_has_text = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   857
        if need_has_text is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   858
            need_has_text = may_need_has_text
2632
920bfaff60a4 B [schema update] may remove has_text unexpectedly, give another argument to fix it
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2622
diff changeset
   859
        if need_has_text and not has_has_text and not deletion:
4755
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
   860
            rdef = ybo.RelationDefinition(self.type, 'has_text', 'String',
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
   861
                                          __permissions__=RO_ATTR_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   862
            self.schema.add_relation_def(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   863
        elif not need_has_text and has_has_text:
5122
c06078d59e87 [schema] ensure we don't remove has_text relation type unfortunatly
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5030
diff changeset
   864
            # use rschema.del_relation_def and not schema.del_relation_def to
c06078d59e87 [schema] ensure we don't remove has_text relation type unfortunatly
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5030
diff changeset
   865
            # avoid deleting the relation type accidentally...
c06078d59e87 [schema] ensure we don't remove has_text relation type unfortunatly
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5030
diff changeset
   866
            self.schema['has_text'].del_relation_def(self, self.schema['String'])
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   867
5896
67683b7e591a cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5768
diff changeset
   868
    def schema_entity(self): # XXX @property for consistency with meta
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   869
        """return True if this entity type is used to build the schema"""
2126
a25859917ccc stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   870
        return self.type in SCHEMA_TYPES
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   871
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   872
    def rql_expression(self, expression, mainvars=None, eid=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   873
        """rql expression factory"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   874
        return ERQLExpression(expression, mainvars, eid)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   875
2252
dd9758cb77e1 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2222
diff changeset
   876
10553
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   877
class CubicWebRelationSchema(PermissionMixIn, RelationSchema):
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   878
    permissions = {}
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   879
    ACTIONS = ()
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   880
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   881
    def __init__(self, schema=None, rdef=None, eid=None, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   882
        if rdef is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   883
            # if this relation is inlined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   884
            self.inlined = rdef.inlined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   885
        super(CubicWebRelationSchema, self).__init__(schema, rdef, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   886
        if eid is None and rdef is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   887
            eid = getattr(rdef, 'eid', None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   888
        self.eid = eid
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   889
10553
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   890
    def init_computed_relation(self, rdef):
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   891
        self.ACTIONS = ('read',)
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   892
        super(CubicWebRelationSchema, self).init_computed_relation(rdef)
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   893
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   894
    def advertise_new_add_permission(self):
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   895
        pass
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   896
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   897
    def check_permission_definitions(self):
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   898
        RelationSchema.check_permission_definitions(self)
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   899
        PermissionMixIn.check_permission_definitions(self)
1d824df4f2bd Fix (de)serialization of ComputedRelation read permissions
Julien Cristau <julien.cristau@logilab.fr>
parents: 10552
diff changeset
   900
2126
a25859917ccc stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   901
    @property
a25859917ccc stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   902
    def meta(self):
2622
3c7edaa6c6d2 oops, should have been in a earlier commit (META_RELATION_TYPES renaming)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2616
diff changeset
   903
        return self.type in META_RTYPES
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   904
5896
67683b7e591a cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5768
diff changeset
   905
    def schema_relation(self): # XXX @property for consistency with meta
2126
a25859917ccc stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   906
        """return True if this relation type is used to build the schema"""
a25859917ccc stop using meta attribute from yams schema. Use instead sets defining meta relations and another defining schema types. Refactor various schema view based on this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   907
        return self.type in SCHEMA_TYPES
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   908
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   909
    def may_have_permission(self, action, req, eschema=None, role=None):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   910
        if eschema is not None:
4019
7f68077d2c3b api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4005
diff changeset
   911
            for tschema in self.targets(eschema, role):
7f68077d2c3b api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4005
diff changeset
   912
                rdef = self.role_rdef(eschema, tschema, role)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   913
                if rdef.may_have_permission(action, req):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   914
                    return True
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   915
        else:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   916
            for rdef in self.rdefs.itervalues():
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   917
                if rdef.may_have_permission(action, req):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   918
                    return True
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   919
        return False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   920
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   921
    def has_perm(self, _cw, action, **kwargs):
10283
8e6aa8ed6ee1 [schema] typo
Julien Cristau <julien.cristau@logilab.fr>
parents: 10193
diff changeset
   922
        """return true if the action is granted globally or locally"""
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   923
        if self.final:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   924
            assert not ('fromeid' in kwargs or 'toeid' in kwargs), kwargs
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   925
            assert action in ('read', 'update')
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   926
            if 'eid' in kwargs:
9469
032825bbacab [multi-sources-removal] Drop entities.source column
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9395
diff changeset
   927
                subjtype = _cw.entity_metas(kwargs['eid'])['type']
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   928
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   929
                subjtype = objtype = None
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   930
        else:
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   931
            assert not 'eid' in kwargs, kwargs
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   932
            assert action in ('read', 'add', 'delete')
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   933
            if 'fromeid' in kwargs:
9469
032825bbacab [multi-sources-removal] Drop entities.source column
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9395
diff changeset
   934
                subjtype = _cw.entity_metas(kwargs['fromeid'])['type']
5746
f4fc424747db [security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5703
diff changeset
   935
            elif 'frometype' in kwargs:
f4fc424747db [security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5703
diff changeset
   936
                subjtype = kwargs.pop('frometype')
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   937
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   938
                subjtype = None
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   939
            if 'toeid' in kwargs:
9469
032825bbacab [multi-sources-removal] Drop entities.source column
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9395
diff changeset
   940
                objtype = _cw.entity_metas(kwargs['toeid'])['type']
5746
f4fc424747db [security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5703
diff changeset
   941
            elif 'toetype' in kwargs:
f4fc424747db [security] SchemaRelation.has_perm grows to new arguments allowing to specify subject/object entity type when actual eid are not known, but their types are
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5703
diff changeset
   942
                objtype = kwargs.pop('toetype')
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   943
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   944
                objtype = None
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   945
        if objtype and subjtype:
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   946
            return self.rdef(subjtype, objtype).has_perm(_cw, action, **kwargs)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   947
        elif subjtype:
4004
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   948
            for tschema in self.targets(subjtype, 'subject'):
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   949
                rdef = self.rdef(subjtype, tschema)
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   950
                if not rdef.has_perm(_cw, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   951
                    return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   952
        elif objtype:
4004
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   953
            for tschema in self.targets(objtype, 'object'):
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   954
                rdef = self.rdef(tschema, objtype)
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   955
                if not rdef.has_perm(_cw, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   956
                    return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   957
        else:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   958
            for rdef in self.rdefs.itervalues():
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
   959
                if not rdef.has_perm(_cw, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   960
                    return False
4233
94ffaecd8e8c ouch, has_perm was always returning False...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   961
        return True
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   962
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   963
    @deprecated('use .rdef(subjtype, objtype).role_cardinality(role)')
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   964
    def cardinality(self, subjtype, objtype, target):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   965
        return self.rdef(subjtype, objtype).role_cardinality(target)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   966
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   967
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   968
class CubicWebSchema(Schema):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   969
    """set of entities and relations schema defining the possible data sets
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   970
    used in an application
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   971
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   972
    :type name: str
2476
1294a6bdf3bf application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2460
diff changeset
   973
    :ivar name: name of the schema, usually the instance identifier
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   974
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   975
    :type base: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   976
    :ivar base: path of the directory where the schema is defined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   977
    """
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   978
    reading_from_database = False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   979
    entity_class = CubicWebEntitySchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   980
    relation_class = CubicWebRelationSchema
2958
44e5446b649b no inference for the identity relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2926
diff changeset
   981
    no_specialization_inference = ('identity',)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   982
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   983
    def __init__(self, *args, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   984
        self._eid_index = {}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   985
        super(CubicWebSchema, self).__init__(*args, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   986
        ybo.register_base_types(self)
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   987
        rschema = self.add_relation_type(ybo.RelationType('eid'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   988
        rschema.final = True
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   989
        rschema = self.add_relation_type(ybo.RelationType('has_text'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   990
        rschema.final = True
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   991
        rschema = self.add_relation_type(ybo.RelationType('identity'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   992
        rschema.final = False
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   993
7440
539de926ec9d [test] fix failure introduced by 1719eab69551: the regexp should be fixed, not the error message
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7383
diff changeset
   994
    etype_name_re = r'[A-Z][A-Za-z0-9]*[a-z]+[A-Za-z0-9]*$'
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   995
    def add_entity_type(self, edef):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   996
        edef.name = edef.name.encode()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   997
        edef.name = bw_normalize_etype(edef.name)
7383
1719eab69551 [schema] fix imprecise error message
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7152
diff changeset
   998
        if not re.match(self.etype_name_re, edef.name):
6861
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   999
            raise BadSchemaDefinition(
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1000
                '%r is not a valid name for an entity type. It should start '
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1001
                'with an upper cased letter and be followed by at least a '
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1002
                'lower cased letter' % edef.name)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1003
        eschema = super(CubicWebSchema, self).add_entity_type(edef)
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3554
diff changeset
  1004
        if not eschema.final:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1005
            # automatically add the eid relation to non final entity types
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1006
            rdef = ybo.RelationDefinition(eschema.type, 'eid', 'Int',
4755
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
  1007
                                          cardinality='11', uid=True,
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
  1008
                                          __permissions__=RO_ATTR_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1009
            self.add_relation_def(rdef)
4755
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
  1010
            rdef = ybo.RelationDefinition(eschema.type, 'identity', eschema.type,
13a5d3a7410e [schema] tweaks meta-relations and schema/workflow entities attributes permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4754
diff changeset
  1011
                                          __permissions__=RO_REL_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1012
            self.add_relation_def(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1013
        self._eid_index[eschema.eid] = eschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1014
        return eschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1015
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1016
    def add_relation_type(self, rdef):
6861
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1017
        if not rdef.name.islower():
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1018
            raise BadSchemaDefinition(
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1019
                '%r is not a valid name for a relation type. It should be '
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1020
                'lower cased' % rdef.name)
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
  1021
        rdef.name = rdef.name.encode()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1022
        rschema = super(CubicWebSchema, self).add_relation_type(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1023
        self._eid_index[rschema.eid] = rschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1024
        return rschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1025
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1026
    def add_relation_def(self, rdef):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1027
        """build a part of a relation schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1028
        (i.e. add a relation between two specific entity's types)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1029
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1030
        :type subject: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1031
        :param subject: entity's type that is subject of the relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1032
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1033
        :type rtype: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1034
        :param rtype: the relation's type (i.e. the name of the relation)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1035
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1036
        :type obj: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1037
        :param obj: entity's type that is object of the relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1038
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1039
        :rtype: RelationSchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1040
        :param: the newly created or just completed relation schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1041
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1042
        rdef.name = rdef.name.lower()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1043
        rdef.subject = bw_normalize_etype(rdef.subject)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1044
        rdef.object = bw_normalize_etype(rdef.object)
6191
ece6996e6ac8 [schema deserial] fix loading of schema when mapping an entity type to an existing one
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6109
diff changeset
  1045
        rdefs = super(CubicWebSchema, self).add_relation_def(rdef)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
  1046
        if rdefs:
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1047
            try:
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
  1048
                self._eid_index[rdef.eid] = rdefs
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1049
            except AttributeError:
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1050
                pass # not a serialized schema
4003
b9436fe77c9e fix bad merge
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3998
diff changeset
  1051
        return rdefs
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1052
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1053
    def del_relation_type(self, rtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1054
        rschema = self.rschema(rtype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1055
        self._eid_index.pop(rschema.eid, None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1056
        super(CubicWebSchema, self).del_relation_type(rtype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1057
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1058
    def del_relation_def(self, subjtype, rtype, objtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1059
        for k, v in self._eid_index.items():
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
  1060
            if not isinstance(v, RelationDefinitionSchema):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
  1061
                continue
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
  1062
            if v.subject == subjtype and v.rtype == rtype and v.object == objtype:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1063
                del self._eid_index[k]
2718
3a56b87bb5d6 [schema] break when found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2716
diff changeset
  1064
                break
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1065
        super(CubicWebSchema, self).del_relation_def(subjtype, rtype, objtype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1066
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1067
    def del_entity_type(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1068
        eschema = self.eschema(etype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1069
        self._eid_index.pop(eschema.eid, None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1070
        # deal with has_text first, else its automatic deletion (see above)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1071
        # may trigger an error in ancestor's del_entity_type method
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1072
        if 'has_text' in eschema.subject_relations():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1073
            self.del_relation_def(etype, 'has_text', 'String')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1074
        super(CubicWebSchema, self).del_entity_type(etype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1075
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1076
    def schema_by_eid(self, eid):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1077
        return self._eid_index[eid]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1078
9967
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1079
    def iter_computed_attributes(self):
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1080
        for relation in self.relations():
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1081
            for rdef in relation.rdefs.itervalues():
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1082
                if rdef.final and rdef.formula is not None:
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1083
                    yield rdef
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1084
9952
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1085
    def iter_computed_relations(self):
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1086
        for relation in self.relations():
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1087
            if relation.rule:
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1088
                yield relation
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1089
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1090
    def finalize(self):
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1091
        super(CubicWebSchema, self).finalize()
9966
6c2d57d1b6de [CWEP002] Add schema finalization checks for computed attributes
Laura Médioni <laura.medioni@logilab.fr>
parents: 9963
diff changeset
  1092
        self.finalize_computed_attributes()
9952
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1093
        self.finalize_computed_relations()
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1094
9966
6c2d57d1b6de [CWEP002] Add schema finalization checks for computed attributes
Laura Médioni <laura.medioni@logilab.fr>
parents: 9963
diff changeset
  1095
    def finalize_computed_attributes(self):
9967
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1096
        """Check computed attributes validity (if any), else raise
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1097
        `BadSchemaDefinition`
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1098
        """
9966
6c2d57d1b6de [CWEP002] Add schema finalization checks for computed attributes
Laura Médioni <laura.medioni@logilab.fr>
parents: 9963
diff changeset
  1099
        analyzer = ETypeResolver(self)
9967
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1100
        for rdef in self.iter_computed_attributes():
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1101
            rqlst = parse(rdef.formula)
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1102
            select = rqlst.children[0]
10192
365e5a0287d6 [computed attribute] ensure attribute's formula apply only to the correct type. Closes #4901163
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 10140
diff changeset
  1103
            select.add_type_restriction(select.defined_vars['X'], str(rdef.subject))
9967
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1104
            analyzer.visit(select)
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1105
            _check_valid_formula(rdef, rqlst)
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1106
            rdef.formula_select = select # avoid later recomputation
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1107
9966
6c2d57d1b6de [CWEP002] Add schema finalization checks for computed attributes
Laura Médioni <laura.medioni@logilab.fr>
parents: 9963
diff changeset
  1108
9952
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1109
    def finalize_computed_relations(self):
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1110
        """Build relation definitions for computed relations
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1111
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1112
        The subject and object types are infered using rql analyzer.
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1113
        """
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1114
        analyzer = ETypeResolver(self)
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1115
        for rschema in self.iter_computed_relations():
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1116
            # XXX rule is valid if both S and O are defined and not in an exists
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1117
            rqlexpr = RRQLExpression(rschema.rule)
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1118
            rqlst = rqlexpr.snippet_rqlst
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1119
            analyzer.visit(rqlst)
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1120
            couples = set((sol['S'], sol['O']) for sol in rqlst.solutions)
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1121
            for subjtype, objtype in couples:
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1122
                if self[objtype].final:
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1123
                    raise BadSchemaDefinition('computed relations cannot be final')
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1124
                rdef = ybo.RelationDefinition(
10193
a0a11be5a9cb [schema] set permissions that do not allow edition on computed relation. Closes #4903918
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 10192
diff changeset
  1125
                    subjtype, rschema.type, objtype,
a0a11be5a9cb [schema] set permissions that do not allow edition on computed relation. Closes #4903918
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 10192
diff changeset
  1126
                    __permissions__={'add': (),
a0a11be5a9cb [schema] set permissions that do not allow edition on computed relation. Closes #4903918
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 10192
diff changeset
  1127
                                     'delete': (),
10552
0e7fab504305 Copy read permissions on ComputedRelation rdefs
Christophe de Vienne <christophe@unlish.com>
parents: 10531
diff changeset
  1128
                                     'read': rschema.permissions['read']})
9952
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1129
                rdef.infered = True
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1130
                self.add_relation_def(rdef)
0f3f965b6365 [CWEP002] Add schema finalization checks for computed relations (rules)
Lea Capgen <lea.capgen@logilab.fr>, Sylvain Thénault <sylvain.thenault@logilab.fr>, Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9951
diff changeset
  1131
9963
5531f5577b50 [CWEP002 migration] support add_relation_type for computed relations
Laura Médioni <laura.medioni@logilab.fr>
parents: 9958
diff changeset
  1132
    def rebuild_infered_relations(self):
5531f5577b50 [CWEP002 migration] support add_relation_type for computed relations
Laura Médioni <laura.medioni@logilab.fr>
parents: 9958
diff changeset
  1133
        super(CubicWebSchema, self).rebuild_infered_relations()
5531f5577b50 [CWEP002 migration] support add_relation_type for computed relations
Laura Médioni <laura.medioni@logilab.fr>
parents: 9958
diff changeset
  1134
        self.finalize_computed_relations()
5531f5577b50 [CWEP002 migration] support add_relation_type for computed relations
Laura Médioni <laura.medioni@logilab.fr>
parents: 9958
diff changeset
  1135
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1136
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1137
# additional cw specific constraints ###########################################
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1138
10447
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1139
# these are implemented as CHECK constraints in sql, don't do the work
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1140
# twice
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1141
StaticVocabularyConstraint.check = lambda *args: True
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1142
IntervalBoundConstraint.check = lambda *args: True
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1143
BoundaryConstraint.check = lambda *args: True
d309c020d9fb [schema] neuter check method for constraints we implement in sql
Julien Cristau <julien.cristau@logilab.fr>
parents: 10283
diff changeset
  1144
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1145
class BaseRQLConstraint(RRQLExpression, BaseConstraint):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1146
    """base class for rql constraints"""
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1147
    distinct_query = None
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1148
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1149
    def serialize(self):
9253
77e31ede9b04 [schema] drop very old bw compat (pre 3.5.10)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9246
diff changeset
  1150
        # start with a semicolon for bw compat, see below
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1151
        return ';' + ','.join(sorted(self.mainvars)) + ';' + self.expression
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1153
    @classmethod
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1154
    def deserialize(cls, value):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1155
        _, mainvars, expression = value.split(';', 2)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1156
        return cls(expression, mainvars)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1157
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1158
    def check(self, entity, rtype, value):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1159
        """return true if the value satisfy the constraint, else false"""
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1160
        # implemented as a hook in the repository
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1161
        return 1
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1162
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1163
    def __str__(self):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1164
        if self.distinct_query:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1165
            selop = 'Any'
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1166
        else:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1167
            selop = 'DISTINCT Any'
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1168
        return '%s(%s %s WHERE %s)' % (self.__class__.__name__, selop,
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1169
                                       ','.join(sorted(self.mainvars)),
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1170
                                       self.expression)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1171
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1172
    def __repr__(self):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1173
        return '<%s @%#x>' % (self.__str__(), id(self))
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1174
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1175
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1176
class RQLVocabularyConstraint(BaseRQLConstraint):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1177
    """the rql vocabulary constraint:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1178
10140
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1179
    limits the proposed values to a set of entities returned by an rql query,
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1180
    but this is not enforced at the repository level
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1181
10140
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1182
    `expression` is an additional rql restriction that will be added to
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1183
    a predefined query, where the S and O variables respectively represent
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1184
    the subject and the object of the relation
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1185
10140
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1186
    `mainvars` is a set of variables that should be used as selection variables
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1187
    (i.e. `'Any %s WHERE ...' % mainvars`). If not specified, an attempt will be
e14ec2aac099 [schema] Typo and indentation fix in RQLVocabularyConstraint doc string
Julien Cristau <julien.cristau@logilab.fr>
parents: 9990
diff changeset
  1188
    made to guess it based on the variables used in the expression.
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1189
    """
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1190
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1191
    def repo_check(self, session, eidfrom, rtype, eidto):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1192
        """raise ValidationError if the relation doesn't satisfy the constraint
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1193
        """
7990
a673d1d9a738 [diet] drop pre 3.6 API compatibility (but attempt to keep data cmopatibility). Closes #2017916
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7973
diff changeset
  1194
        pass # this is a vocabulary constraint, not enforced
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1195
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1196
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1197
class RepoEnforcedRQLConstraintMixIn(object):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1198
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1199
    def __init__(self, expression, mainvars=None, msg=None):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1200
        super(RepoEnforcedRQLConstraintMixIn, self).__init__(expression, mainvars)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1201
        self.msg = msg
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1202
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1203
    def serialize(self):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1204
        # start with a semicolon for bw compat, see below
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1205
        return ';%s;%s\n%s' % (','.join(sorted(self.mainvars)), self.expression,
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1206
                               self.msg or '')
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1207
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1208
    def deserialize(cls, value):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1209
        value, msg = value.split('\n', 1)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1210
        _, mainvars, expression = value.split(';', 2)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1211
        return cls(expression, mainvars, msg)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1212
    deserialize = classmethod(deserialize)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1213
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1214
    def repo_check(self, session, eidfrom, rtype, eidto=None):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1215
        """raise ValidationError if the relation doesn't satisfy the constraint
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1216
        """
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1217
        if not self.match_condition(session, eidfrom, eidto):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1218
            # XXX at this point if both or neither of S and O are in mainvar we
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1219
            # dunno if the validation error `occurred` on eidfrom or eidto (from
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1220
            # user interface point of view)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1221
            #
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1222
            # possible enhancement: check entity being created, it's probably
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1223
            # the main eid unless this is a composite relation
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1224
            if eidto is None or 'S' in self.mainvars or not 'O' in self.mainvars:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1225
                maineid = eidfrom
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1226
                qname = role_name(rtype, 'subject')
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1227
            else:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1228
                maineid = eidto
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1229
                qname = role_name(rtype, 'object')
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1230
            if self.msg:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1231
                msg = session._(self.msg)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1232
            else:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1233
                msg = '%(constraint)s %(expression)s failed' % {
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1234
                    'constraint':  session._(self.type()),
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1235
                    'expression': self.expression}
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1236
            raise ValidationError(maineid, {qname: msg})
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1237
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
  1238
    def exec_query(self, _cw, eidfrom, eidto):
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1239
        if eidto is None:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1240
            # checking constraint for an attribute relation
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1241
            expression = 'S eid %(s)s, ' + self.expression
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1242
            args = {'s': eidfrom}
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1243
        else:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1244
            expression = 'S eid %(s)s, O eid %(o)s, ' + self.expression
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1245
            args = {'s': eidfrom, 'o': eidto}
7640
85ebdbbcb321 [schema] closes #1816439: RQLConstraint does not take variable U into account
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7603
diff changeset
  1246
        if 'U' in self.rqlst.defined_vars:
85ebdbbcb321 [schema] closes #1816439: RQLConstraint does not take variable U into account
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7603
diff changeset
  1247
            expression = 'U eid %(u)s, ' + expression
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
  1248
            args['u'] = _cw.user.eid
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1249
        rql = 'Any %s WHERE %s' % (','.join(sorted(self.mainvars)), expression)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1250
        if self.distinct_query:
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1251
            rql = 'DISTINCT ' + rql
8540
fee98af8bb33 [schema] rename schema permissions function: session may also be a request, use _cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8258
diff changeset
  1252
        return _cw.execute(rql, args, build_descr=False)
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1253
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1254
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1255
class RQLConstraint(RepoEnforcedRQLConstraintMixIn, RQLVocabularyConstraint):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1256
    """the rql constraint is similar to the RQLVocabularyConstraint but
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1257
    are also enforced at the repository level
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1258
    """
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1259
    distinct_query = False
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1260
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1261
    def match_condition(self, session, eidfrom, eidto):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1262
        return self.exec_query(session, eidfrom, eidto)
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1263
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1264
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1265
class RQLUniqueConstraint(RepoEnforcedRQLConstraintMixIn, BaseRQLConstraint):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1266
    """the unique rql constraint check that the result of the query isn't
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1267
    greater than one.
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1268
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1269
    You *must* specify `mainvars` when instantiating the constraint since there
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1270
    is no way to guess it correctly (e.g. if using S,O or U the constraint will
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1271
    always be satisfied because we've to use a DISTINCT query).
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1272
    """
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1273
    # XXX turns mainvars into a required argument in __init__
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1274
    distinct_query = True
9227
762a331db741 [schema] fix spurious warning when rqlexpr/constraint mainvars specify a non predefined variable. Closes #3098165
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9173
diff changeset
  1275
7152
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1276
    def match_condition(self, session, eidfrom, eidto):
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1277
        return len(self.exec_query(session, eidfrom, eidto)) <= 1
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1278
39c1ffc7d93f [schema, refactoring] use RQLExpression as base class for RQL constraint classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7103
diff changeset
  1279
629
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1280
# workflow extensions #########################################################
2926
4484387ed012 when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1281
2460
ce1a7ffc6c90 fix a couple NameErrors
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2459
diff changeset
  1282
from yams.buildobjs import _add_relation as yams_add_relation
629
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1283
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1284
class workflowable_definition(ybo.metadefinition):
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1285
    """extends default EntityType's metaclass to add workflow relations
5378
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1286
    (i.e. in_state, wf_info_for and custom_workflow). This is the default
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1287
    metaclass for WorkflowableEntityType.
629
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1288
    """
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1289
    def __new__(mcs, name, bases, classdict):
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1290
        abstract = classdict.pop('__abstract__', False)
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1291
        cls = super(workflowable_definition, mcs).__new__(mcs, name, bases,
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1292
                                                          classdict)
629
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1293
        if not abstract:
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1294
            make_workflowable(cls)
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1295
        return cls
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1296
5379
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1297
class WorkflowableEntityType(ybo.EntityType):
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1298
    """Use this base class instead of :class:`EntityType` to have workflow
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1299
    relations (i.e. `in_state`, `wf_info_for` and `custom_workflow`) on your
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1300
    entity type.
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1301
    """
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1302
    __metaclass__ = workflowable_definition
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1303
    __abstract__ = True
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1304
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1305
2957
2daabf4c646e [schema] make_workflowable now take an option description for the in_state relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2931
diff changeset
  1306
def make_workflowable(cls, in_state_descr=None):
5378
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1307
    """Adds workflow relations as :class:`WorkflowableEntityType`, but usable on
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1308
    existing classes which are not using that base class.
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1309
    """
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1310
    existing_rels = set(rdef.name for rdef in cls.__relations__)
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1311
    # let relation types defined in cw.schemas.workflow carrying
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1312
    # cardinality, constraints and other relation definition properties
5379
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1313
    etype = getattr(cls, 'name', cls.__name__)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1314
    if 'custom_workflow' not in existing_rels:
5379
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1315
        rdef = ybo.RelationDefinition(etype, 'custom_workflow', 'Workflow')
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1316
        yams_add_relation(cls.__relations__, rdef)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1317
    if 'in_state' not in existing_rels:
5379
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1318
        rdef = ybo.RelationDefinition(etype, 'in_state', 'State',
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1319
                                      description=in_state_descr)
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1320
        yams_add_relation(cls.__relations__, rdef)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1321
    if 'wf_info_for' not in existing_rels:
5379
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1322
        rdef = ybo.RelationDefinition('TrInfo', 'wf_info_for', etype)
c082dea0731b [schema] update for yams 0.29: BoundConstraint renamed to BoundaryConstraint; new constraint messages; ObjectRelation deprecated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5378
diff changeset
  1323
        yams_add_relation(cls.__relations__, rdef)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1324
629
59b6542f5729 provide a new WorkflowableEntityType base class (will be refactored later, maybe with schema interfaces)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 628
diff changeset
  1325
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1326
# schema loading ##############################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1327
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1328
CONSTRAINTS['RQLConstraint'] = RQLConstraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1329
CONSTRAINTS['RQLUniqueConstraint'] = RQLUniqueConstraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1330
CONSTRAINTS['RQLVocabularyConstraint'] = RQLVocabularyConstraint
3980
b17cf4a2e09e this constraint is actually unusable in yams schema for cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3979
diff changeset
  1331
CONSTRAINTS.pop('MultipleStaticVocabularyConstraint', None) # don't want this in cw yams schema
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1332
PyFileReader.context.update(CONSTRAINTS)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1333
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1334
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1335
class BootstrapSchemaLoader(SchemaLoader):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1336
    """cubicweb specific schema loader, loading only schema necessary to read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1337
    the persistent schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1338
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1339
    schemacls = CubicWebSchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1340
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1341
    def load(self, config, path=(), **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1342
        """return a Schema instance from the schema definition read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1343
        from <directory>
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1344
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1345
        return super(BootstrapSchemaLoader, self).load(
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1346
            path, config.appid, register_base_types=False, **kwargs)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1347
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1348
    def _load_definition_files(self, cubes=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1349
        # bootstraping, ignore cubes
2735
39c942241b48 no need for lib_directory
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2730
diff changeset
  1350
        filepath = join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'bootstrap.py')
2142
098aa2075903 include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
  1351
        self.info('loading %s', filepath)
9366
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1352
        with tempattr(ybo, 'PACKAGE', 'cubicweb'): # though we don't care here
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1353
            self.handle_file(filepath)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1354
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1355
    def unhandled_file(self, filepath):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1356
        """called when a file without handler associated has been found"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1357
        self.warning('ignoring file %r', filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1358
7083
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1359
    # these are overridden by set_log_methods below
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1360
    # only defining here to prevent pylint from complaining
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1361
    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1362
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1363
class CubicWebSchemaLoader(BootstrapSchemaLoader):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1364
    """cubicweb specific schema loader, automatically adding metadata to the
2476
1294a6bdf3bf application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2460
diff changeset
  1365
    instance's schema
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1366
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1367
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1368
    def load(self, config, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1369
        """return a Schema instance from the schema definition read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1370
        from <directory>
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1371
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1372
        self.info('loading %s schemas', ', '.join(config.cubes()))
2782
998f24dabd0d compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2742
diff changeset
  1373
        self.extrapath = {}
998f24dabd0d compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2742
diff changeset
  1374
        for cubesdir in config.cubes_search_path():
998f24dabd0d compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2742
diff changeset
  1375
            if cubesdir != config.CUBES_DIR:
998f24dabd0d compute extrapath, necessary for proper schema module detection when CW_CUBES_PATH is set
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2742
diff changeset
  1376
                self.extrapath[cubesdir] = 'cubes'
372
a8a975a88368 check apphome is not None
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
  1377
        if config.apphome:
2598
a66fe74bd9fc [R schema] dont give an iterator, it's a trap
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2596
diff changeset
  1378
            path = tuple(reversed([config.apphome] + config.cubes_path()))
372
a8a975a88368 check apphome is not None
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
  1379
        else:
2598
a66fe74bd9fc [R schema] dont give an iterator, it's a trap
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2596
diff changeset
  1380
            path = tuple(reversed(config.cubes_path()))
2526
40e41eb34a7d we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2476
diff changeset
  1381
        try:
40e41eb34a7d we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2476
diff changeset
  1382
            return super(CubicWebSchemaLoader, self).load(config, path=path, **kwargs)
40e41eb34a7d we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2476
diff changeset
  1383
        finally:
40e41eb34a7d we've to call cleanup_sys_modules manually for proper schema modules cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2476
diff changeset
  1384
            # we've to cleanup modules imported from cubicweb.schemas as well
2735
39c942241b48 no need for lib_directory
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2730
diff changeset
  1385
            cleanup_sys_modules([join(cubicweb.CW_SOFTWARE_ROOT, 'schemas')])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1386
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1387
    def _load_definition_files(self, cubes):
2741
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1388
        for filepath in (join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'bootstrap.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1389
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'base.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1390
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'workflow.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1391
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'Bookmark.py')):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1392
            self.info('loading %s', filepath)
9366
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1393
            with tempattr(ybo, 'PACKAGE', 'cubicweb'):
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1394
                self.handle_file(filepath)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1395
        for cube in cubes:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1396
            for filepath in self.get_schema_files(cube):
9366
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1397
                with tempattr(ybo, 'PACKAGE', basename(cube)):
bcbc92223b35 set proper PACKAGE information for yams 0.39
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9283
diff changeset
  1398
                    self.handle_file(filepath)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1399
7083
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1400
    # these are overridden by set_log_methods below
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1401
    # only defining here to prevent pylint from complaining
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6861
diff changeset
  1402
    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1403
9967
e65873ad0371 [CWEP002] Add support for computed attribute synchronization
Sylvain Thénault
parents: 9966
diff changeset
  1404
2459
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1405
set_log_methods(CubicWebSchemaLoader, getLogger('cubicweb.schemaloader'))
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1406
set_log_methods(BootstrapSchemaLoader, getLogger('cubicweb.bootstrapschemaloader'))
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1407
set_log_methods(RQLExpression, getLogger('cubicweb.schema'))
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1408
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1409
# _() is just there to add messages to the catalog, don't care about actual
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1410
# translation
7797
a71618a75b53 backport stable
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7782
diff changeset
  1411
MAY_USE_TEMPLATE_FORMAT = set(('managers',))
2459
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1412
NEED_PERM_FORMATS = [_('text/cubicweb-page-template')]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1413
2531
531ea4e7013e [cleanup] nicer imports
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2526
diff changeset
  1414
@monkeypatch(FormatConstraint)
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1415
def vocabulary(self, entity=None, form=None):
3401
f893f4f199fc use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
  1416
    cw = None
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1417
    if form is None and entity is not None:
3401
f893f4f199fc use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
  1418
        cw = entity._cw
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1419
    elif form is not None:
3401
f893f4f199fc use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
  1420
        cw = form._cw
4757
5d937aeaa6fb do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4755
diff changeset
  1421
    if cw is not None:
4835
13b0b96d7982 [repo] enhanced security handling: deprecates unsafe_execute, in favor of explicit read/write security control using the `enabled_security` context manager. Also code executed on the repository side is now unsafe by default.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4834
diff changeset
  1422
        if hasattr(cw, 'write_security'): # test it's a session and not a request
4757
5d937aeaa6fb do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4755
diff changeset
  1423
            # cw is a server session
4835
13b0b96d7982 [repo] enhanced security handling: deprecates unsafe_execute, in favor of explicit read/write security control using the `enabled_security` context manager. Also code executed on the repository side is now unsafe by default.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4834
diff changeset
  1424
            hasperm = not cw.write_security or \
4843
5f7363416765 fix hooks control method name + other litle cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4835
diff changeset
  1425
                      not cw.is_hook_category_activated('integrity') or \
7797
a71618a75b53 backport stable
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7782
diff changeset
  1426
                      cw.user.matching_groups(MAY_USE_TEMPLATE_FORMAT)
4757
5d937aeaa6fb do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4755
diff changeset
  1427
        else:
7797
a71618a75b53 backport stable
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7782
diff changeset
  1428
            hasperm = cw.user.matching_groups(MAY_USE_TEMPLATE_FORMAT)
4757
5d937aeaa6fb do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4755
diff changeset
  1429
        if hasperm:
5d937aeaa6fb do not check for use template permission when session is super session or integrity hooks are deactivated
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4755
diff changeset
  1430
            return self.regular_formats + tuple(NEED_PERM_FORMATS)
2459
d088d0ff48a1 move RichString and co to yams, keeping only a small monkeypatch for cw-page-template here
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2456
diff changeset
  1431
    return self.regular_formats
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1432
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1433
# XXX itou for some Statement methods
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1434
from rql import stmts
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1435
orig_get_etype = stmts.ScopeNode.get_etype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1436
def bw_get_etype(self, name):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1437
    return orig_get_etype(self, bw_normalize_etype(name))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1438
stmts.ScopeNode.get_etype = bw_get_etype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1439
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1440
orig_add_main_variable_delete = stmts.Delete.add_main_variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1441
def bw_add_main_variable_delete(self, etype, vref):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1442
    return orig_add_main_variable_delete(self, bw_normalize_etype(etype), vref)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1443
stmts.Delete.add_main_variable = bw_add_main_variable_delete
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1444
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1445
orig_add_main_variable_insert = stmts.Insert.add_main_variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1446
def bw_add_main_variable_insert(self, etype, vref):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1447
    return orig_add_main_variable_insert(self, bw_normalize_etype(etype), vref)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1448
stmts.Insert.add_main_variable = bw_add_main_variable_insert
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1449
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1450
orig_set_statement_type = stmts.Select.set_statement_type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1451
def bw_set_statement_type(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1452
    return orig_set_statement_type(self, bw_normalize_etype(etype))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1453
stmts.Select.set_statement_type = bw_set_statement_type