schema.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 08 Feb 2011 18:00:23 +0100
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parent 6949 267ce7cf77f1
child 7085 36e91d19188b
permissions -rw-r--r--
[schema, ui] fix is_subobject to skip cw_source relation (else everything is considered as a subobject, since this relation is now composite)
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# copyright 2003-2011 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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__docformat__ = "restructuredtext en"
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_ = unicode
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import re
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from os.path import join
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from logging import getLogger
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from warnings import warn
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from logilab.common.decorators import cached, clear_cache, monkeypatch
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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
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from logilab.common.graph import get_cycles
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from logilab.common.compat import any
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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
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from yams.reader import (CONSTRAINTS, PyFileReader, SchemaLoader,
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                         obsolete as yobsolete, cleanup_sys_modules)
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from rql import parse, nodes, RQLSyntaxError, TypeResolverException
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import cubicweb
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from cubicweb import ETYPE_NAME_MAP, ValidationError, Unauthorized
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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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                           ))
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SYSTEM_RTYPES = set(('in_group', 'require_group', 'require_permission',
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                     # cwproperty
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                     'for_user',
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                     )) | WORKFLOW_RTYPES
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NO_I18NCONTEXT = META_RTYPES | WORKFLOW_RTYPES
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NO_I18NCONTEXT.add('require_permission')
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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', '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', 'CWPermission', 'CWCache', 'ExternalUri',
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                      'CWSource', 'CWSourceHostConfig', 'CWSourceSchemaConfig'))
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_LOGGER = getLogger('cubicweb.schemaloader')
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# schema entities created from serialized schema have an eid rproperty
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ybo.ETYPE_PROPERTIES += ('eid',)
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ybo.RTYPE_PROPERTIES += ('eid',)
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ybo.RDEF_PROPERTIES += ('eid',)
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PUB_SYSTEM_ENTITY_PERMS = {
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    'read':   ('managers', 'users', 'guests',),
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    'add':    ('managers',),
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    'delete': ('managers',),
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    'update': ('managers',),
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    }
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PUB_SYSTEM_REL_PERMS = {
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    'read':   ('managers', 'users', 'guests',),
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    'add':    ('managers',),
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    'delete': ('managers',),
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    }
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PUB_SYSTEM_ATTR_PERMS = {
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    'read':   ('managers', 'users', 'guests',),
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    'update': ('managers',),
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    }
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RO_REL_PERMS = {
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    'read':   ('managers', 'users', 'guests',),
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    'add':    (),
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    'delete': (),
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    }
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RO_ATTR_PERMS = {
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    'read':   ('managers', 'users', 'guests',),
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    'update': (),
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    }
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# XXX same algorithm as in reorder_cubes and probably other place,
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# may probably extract a generic function
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def order_eschemas(eschemas):
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    """return entity schemas ordered such that entity types which specializes an
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    other one appears after that one
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    """
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    graph = {}
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    for eschema in eschemas:
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        if eschema.specializes():
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            graph[eschema] = set((eschema.specializes(),))
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        else:
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            graph[eschema] = set()
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    cycles = get_cycles(graph)
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    if cycles:
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        cycles = '\n'.join(' -> '.join(cycle) for cycle in cycles)
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        raise Exception('cycles in entity schema specialization: %s'
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                        % cycles)
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    eschemas = []
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    while graph:
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        # sorted to get predictable results
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        for eschema, deps in sorted(graph.items()):
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            if not deps:
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                eschemas.append(eschema)
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                del graph[eschema]
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                for deps in graph.itervalues():
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                    try:
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                        deps.remove(eschema)
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                    except KeyError:
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                        continue
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    return eschemas
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0
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def bw_normalize_etype(etype):
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    if etype in ETYPE_NAME_MAP:
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        msg = '%s has been renamed to %s, please update your code' % (
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            etype, ETYPE_NAME_MAP[etype])
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        warn(msg, DeprecationWarning, stacklevel=4)
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        etype = ETYPE_NAME_MAP[etype]
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    return etype
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def display_name(req, key, form='', context=None):
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    """return a internationalized string for the key (schema entity or relation
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    name) in a given form
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    """
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    assert form in ('', 'plural', 'subject', 'object')
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    if form == 'subject':
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        form = ''
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    if form:
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        key = key + '_' + form
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    # ensure unicode
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    # .lower() in case no translation are available XXX done whatever a translation is there or not!
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    if context is not None:
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        return unicode(req.pgettext(context, key)).lower()
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    else:
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        return unicode(req._(key)).lower()
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__builtins__['display_name'] = deprecated('[3.4] display_name should be imported from cubicweb.schema')(display_name)
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# rql expression utilities function ############################################
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def guess_rrqlexpr_mainvars(expression):
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    defined = set(split_expression(expression))
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    mainvars = []
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    if 'S' in defined:
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        mainvars.append('S')
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    if 'O' in defined:
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        mainvars.append('O')
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    if 'U' in defined:
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        mainvars.append('U')
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    if not mainvars:
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        raise Exception('unable to guess selection variables')
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    return ','.join(sorted(mainvars))
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def split_expression(rqlstring):
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    for expr in rqlstring.split(','):
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        for noparen in expr.split('('):
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            for word in noparen.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 added/removed
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    for instance)
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    """
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    return u', '.join(' '.join(expr.split()) for expr in rqlstring.split(','))
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# Schema objects definition ###################################################
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def ERSchema_display_name(self, req, form='', context=None):
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    """return a internationalized string for the entity/relation type name in
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    a given form
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    """
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    return display_name(req, self.type, form, context)
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ERSchema.display_name = ERSchema_display_name
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@cached
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def get_groups(self, action):
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    """return the groups authorized to perform <action> on entities of
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    this type
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    :type action: str
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    :param action: the name of a permission
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    :rtype: tuple
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    :return: names of the groups with the given permission
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    """
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    assert action in self.ACTIONS, action
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    #assert action in self._groups, '%s %s' % (self, action)
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    try:
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        return frozenset(g for g in self.permissions[action] if isinstance(g, basestring))
0
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    except KeyError:
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        return ()
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PermissionMixIn.get_groups = get_groups
0
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@cached
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def get_rqlexprs(self, action):
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    """return the rql expressions representing queries to check the user is allowed
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    to perform <action> on entities of this type
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    :type action: str
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    :param action: the name of a permission
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    :rtype: tuple
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    :return: the rql expressions with the given permission
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    """
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    assert action in self.ACTIONS, action
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    #assert action in self._rqlexprs, '%s %s' % (self, action)
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    try:
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        return tuple(g for g in self.permissions[action] if not isinstance(g, basestring))
0
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    except KeyError:
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        return ()
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PermissionMixIn.get_rqlexprs = get_rqlexprs
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orig_set_action_permissions = PermissionMixIn.set_action_permissions
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def set_action_permissions(self, action, permissions):
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    """set the groups and rql expressions allowing to perform <action> on
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    entities of this type
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    :type action: str
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    :param action: the name of a permission
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    :type permissions: tuple
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    :param permissions: the groups and rql expressions allowing the given action
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    """
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    orig_set_action_permissions(self, action, tuple(permissions))
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    clear_cache(self, 'get_rqlexprs')
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    clear_cache(self, 'get_groups')
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PermissionMixIn.set_action_permissions = set_action_permissions
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def has_local_role(self, action):
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    """return true if the action *may* be granted localy (eg either rql
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    expressions or the owners group are used in security definition)
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    XXX this method is only there since we don't know well how to deal with
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    'add' action checking. Also find a better name would be nice.
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    """
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    assert action in self.ACTIONS, action
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    if self.get_rqlexprs(action):
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        return True
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    if action in ('update', 'delete'):
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        return 'owners' in self.get_groups(action)
0
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    return False
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PermissionMixIn.has_local_role = has_local_role
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def may_have_permission(self, action, req):
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    if action != 'read' and not (self.has_local_role('read') or
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                                 self.has_perm(req, 'read')):
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        return False
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    return self.has_local_role(action) or self.has_perm(req, action)
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PermissionMixIn.may_have_permission = may_have_permission
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   295
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def has_perm(self, session, action, **kwargs):
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    """return true if the action is granted globaly or localy"""
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    try:
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        self.check_perm(session, action, **kwargs)
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        return True
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    except Unauthorized:
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        return False
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PermissionMixIn.has_perm = has_perm
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   304
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def check_perm(self, session, action, **kwargs):
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    # NB: session may be a server session or a request object check user is
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    # in an allowed group, if so that's enough internal sessions should
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    # always stop there
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    groups = self.get_groups(action)
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    if session.user.matching_groups(groups):
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        return
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    # if 'owners' in allowed groups, check if the user actually owns this
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    # object, if so that's enough
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   314
    if 'owners' in groups and (
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          kwargs.get('creating')
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          or ('eid' in kwargs and session.user.owns(kwargs['eid']))):
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        return
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    # else if there is some rql expressions, check them
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    if any(rqlexpr.check(session, **kwargs)
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           for rqlexpr in self.get_rqlexprs(action)):
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   321
        return
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    raise Unauthorized(action, str(self))
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   323
PermissionMixIn.check_perm = check_perm
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   324
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   325
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   326
RelationDefinitionSchema._RPROPERTIES['eid'] = None
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   327
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   328
def rql_expression(self, expression, mainvars=None, eid=None):
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    """rql expression factory"""
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   330
    if self.rtype.final:
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   331
        return ERQLExpression(expression, mainvars, eid)
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    return RRQLExpression(expression, mainvars, eid)
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RelationDefinitionSchema.rql_expression = rql_expression
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   334
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orig_check_permission_definitions = RelationDefinitionSchema.check_permission_definitions
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   336
def check_permission_definitions(self):
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   337
    orig_check_permission_definitions(self)
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   338
    schema = self.subject.schema
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   339
    for action, groups in self.permissions.iteritems():
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        for group_or_rqlexpr in groups:
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   341
            if action == 'read' and \
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                   isinstance(group_or_rqlexpr, RQLExpression):
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                msg = "can't use rql expression for read permission of %s"
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                raise BadSchemaDefinition(msg % self)
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   345
            if self.final and isinstance(group_or_rqlexpr, RRQLExpression):
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   346
                msg = "can't use RRQLExpression on %s, use an ERQLExpression"
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                raise BadSchemaDefinition(msg % self)
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   348
            if not self.final and isinstance(group_or_rqlexpr, ERQLExpression):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   349
                msg = "can't use ERQLExpression on %s, use a RRQLExpression"
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   350
                raise BadSchemaDefinition(msg % self)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   351
RelationDefinitionSchema.check_permission_definitions = check_permission_definitions
0
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parents:
diff changeset
   352
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parents:
diff changeset
   353
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diff changeset
   354
class CubicWebEntitySchema(EntitySchema):
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parents:
diff changeset
   355
    """a entity has a type, a set of subject and or object relations
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parents:
diff changeset
   356
    the entity schema defines the possible relations for a given type and some
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parents:
diff changeset
   357
    constraints on those relations
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parents:
diff changeset
   358
    """
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parents:
diff changeset
   359
    def __init__(self, schema=None, edef=None, eid=None, **kwargs):
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parents:
diff changeset
   360
        super(CubicWebEntitySchema, self).__init__(schema, edef, **kwargs)
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parents:
diff changeset
   361
        if eid is None and edef is not None:
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parents:
diff changeset
   362
            eid = getattr(edef, 'eid', None)
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parents:
diff changeset
   363
        self.eid = eid
4574
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   364
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   365
    def check_permission_definitions(self):
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   366
        super(CubicWebEntitySchema, self).check_permission_definitions()
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   367
        for groups in self.permissions.itervalues():
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   368
            for group_or_rqlexpr in groups:
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   369
                if isinstance(group_or_rqlexpr, RRQLExpression):
2380444d982c [schema] refactor/cleanup check_permissions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4570
diff changeset
   370
                    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
   371
                    raise BadSchemaDefinition(msg % self.type)
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parents: 1398
diff changeset
   372
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
   373
    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
   374
        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
   375
            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
   376
        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
   377
            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
   378
        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
   379
                                                              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
   380
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
    def attribute_definitions(self):
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parents:
diff changeset
   382
        """return an iterator on attribute definitions
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   383
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
        attribute relations are a subset of subject relations where the
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
        object's type is a final entity
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   386
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
        an attribute definition is a 2-uple :
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   388
        * name of the relation
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
        * schema of the destination entity type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   390
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
        iter = super(CubicWebEntitySchema, self).attribute_definitions()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   392
        for rschema, attrschema in iter:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
            if rschema.type == 'has_text':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395
            yield rschema, attrschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   396
2128
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   397
    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
   398
        """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
   399
        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
   400
        """
464edb198faa drop @ wildcard in relation subject/object, override main_attribute for proper behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2126
diff changeset
   401
        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
   402
            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
   403
                    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
   404
                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
   405
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
    def add_subject_relation(self, rschema):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
        """register the relation schema as possible subject relation"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   408
        super(CubicWebEntitySchema, self).add_subject_relation(rschema)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   409
        self._update_has_text()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   410
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
    def del_subject_relation(self, rtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   412
        super(CubicWebEntitySchema, self).del_subject_relation(rtype)
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
   413
        self._update_has_text(True)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   414
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
   415
    def _update_has_text(self, deletion=False):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   416
        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
   417
        need_has_text = None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
        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
   419
            if rschema.final:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
                if rschema == 'has_text':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   421
                    has_has_text = True
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   422
                elif self.rdef(rschema).get('fulltextindexed'):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   424
            elif rschema.fulltext_container:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   425
                if rschema.fulltext_container == 'subject':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   426
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   427
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   428
                    need_has_text = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   429
        for rschema in self.object_relations():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
            if rschema.fulltext_container:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
                if rschema.fulltext_container == 'object':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   432
                    may_need_has_text = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   433
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   434
                    need_has_text = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   435
        if need_has_text is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   436
            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
   437
        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
   438
            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
   439
                                          __permissions__=RO_ATTR_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   440
            self.schema.add_relation_def(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   441
        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
   442
            # 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
   443
            # 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
   444
            self.schema['has_text'].del_relation_def(self, self.schema['String'])
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   445
5896
67683b7e591a cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5768
diff changeset
   446
    def schema_entity(self): # XXX @property for consistency with meta
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
        """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
   448
        return self.type in SCHEMA_TYPES
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
    def rql_expression(self, expression, mainvars=None, eid=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   451
        """rql expression factory"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   452
        return ERQLExpression(expression, mainvars, eid)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   453
2252
dd9758cb77e1 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2222
diff changeset
   454
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   455
class CubicWebRelationSchema(RelationSchema):
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   456
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   457
    def __init__(self, schema=None, rdef=None, eid=None, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   458
        if rdef is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   459
            # if this relation is inlined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   460
            self.inlined = rdef.inlined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
        super(CubicWebRelationSchema, self).__init__(schema, rdef, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   462
        if eid is None and rdef is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   463
            eid = getattr(rdef, 'eid', None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   464
        self.eid = eid
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   465
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
   466
    @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
   467
    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
   468
        return self.type in META_RTYPES
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   469
5896
67683b7e591a cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5768
diff changeset
   470
    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
   471
        """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
   472
        return self.type in SCHEMA_TYPES
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   473
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   474
    def may_have_permission(self, action, req, eschema=None, role=None):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   475
        if eschema is not None:
4019
7f68077d2c3b api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4005
diff changeset
   476
            for tschema in self.targets(eschema, role):
7f68077d2c3b api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4005
diff changeset
   477
                rdef = self.role_rdef(eschema, tschema, role)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   478
                if rdef.may_have_permission(action, req):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   479
                    return True
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   480
        else:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   481
            for rdef in self.rdefs.itervalues():
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   482
                if rdef.may_have_permission(action, req):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   483
                    return True
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   484
        return False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   485
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   486
    def has_perm(self, session, action, **kwargs):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   487
        """return true if the action is granted globaly or localy"""
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   488
        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
   489
            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
   490
            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
   491
            if 'eid' in kwargs:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   492
                subjtype = session.describe(kwargs['eid'])[0]
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   493
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   494
                subjtype = objtype = None
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   495
        else:
4575
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   496
            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
   497
            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
   498
            if 'fromeid' in kwargs:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   499
                subjtype = session.describe(kwargs['fromeid'])[0]
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
   500
            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
   501
                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
   502
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   503
                subjtype = None
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   504
            if 'toeid' in kwargs:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   505
                objtype = session.describe(kwargs['toeid'])[0]
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
   506
            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
   507
                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
   508
            else:
4a7fe84f7803 [schema] fix RelationSchema.has_perm to properly works with attribute relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4574
diff changeset
   509
                objtype = None
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   510
        if objtype and subjtype:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   511
            return self.rdef(subjtype, objtype).has_perm(session, action, **kwargs)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   512
        elif subjtype:
4004
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   513
            for tschema in self.targets(subjtype, 'subject'):
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   514
                rdef = self.rdef(subjtype, tschema)
4045
f4a52abb6f4f cw 3.6 api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4037
diff changeset
   515
                if not rdef.has_perm(session, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   516
                    return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   517
        elif objtype:
4004
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   518
            for tschema in self.targets(objtype, 'object'):
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   519
                rdef = self.rdef(tschema, objtype)
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   520
                if not rdef.has_perm(session, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   521
                    return False
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   522
        else:
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   523
            for rdef in self.rdefs.itervalues():
4004
c52619c738a5 api renaming update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 4003
diff changeset
   524
                if not rdef.has_perm(session, action, **kwargs):
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   525
                    return False
4233
94ffaecd8e8c ouch, has_perm was always returning False...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   526
        return True
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   527
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   528
    @deprecated('use .rdef(subjtype, objtype).role_cardinality(role)')
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   529
    def cardinality(self, subjtype, objtype, target):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   530
        return self.rdef(subjtype, objtype).role_cardinality(target)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   531
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   532
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   533
class CubicWebSchema(Schema):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   534
    """set of entities and relations schema defining the possible data sets
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   535
    used in an application
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   536
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   537
    :type name: str
2476
1294a6bdf3bf application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2460
diff changeset
   538
    :ivar name: name of the schema, usually the instance identifier
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   539
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   540
    :type base: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   541
    :ivar base: path of the directory where the schema is defined
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   542
    """
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   543
    reading_from_database = False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   544
    entity_class = CubicWebEntitySchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   545
    relation_class = CubicWebRelationSchema
2958
44e5446b649b no inference for the identity relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2926
diff changeset
   546
    no_specialization_inference = ('identity',)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   547
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   548
    def __init__(self, *args, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   549
        self._eid_index = {}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   550
        super(CubicWebSchema, self).__init__(*args, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   551
        ybo.register_base_types(self)
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   552
        rschema = self.add_relation_type(ybo.RelationType('eid'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   553
        rschema.final = True
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   554
        rschema = self.add_relation_type(ybo.RelationType('has_text'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   555
        rschema.final = True
2300
c8151d004e06 meta has been drop
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2293
diff changeset
   556
        rschema = self.add_relation_type(ybo.RelationType('identity'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   557
        rschema.final = False
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   558
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   559
    def add_entity_type(self, edef):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   560
        edef.name = edef.name.encode()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   561
        edef.name = bw_normalize_etype(edef.name)
6861
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   562
        if not re.match(r'[A-Z][A-Za-z0-9]*[a-z]+[0-9]*$', edef.name):
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   563
            raise BadSchemaDefinition(
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   564
                '%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
   565
                '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
   566
                'lower cased letter' % edef.name)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   567
        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
   568
        if not eschema.final:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   569
            # automatically add the eid relation to non final entity types
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   570
            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
   571
                                          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
   572
                                          __permissions__=RO_ATTR_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   573
            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
   574
            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
   575
                                          __permissions__=RO_REL_PERMS)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   576
            self.add_relation_def(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   577
        self._eid_index[eschema.eid] = eschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   578
        return eschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   579
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   580
    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
   581
        if not rdef.name.islower():
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   582
            raise BadSchemaDefinition(
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   583
                '%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
   584
                'lower cased' % rdef.name)
9d4e11d6e783 [schema] ease understanding of schema naming error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6827
diff changeset
   585
        rdef.name = rdef.name.encode()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   586
        rschema = super(CubicWebSchema, self).add_relation_type(rdef)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   587
        self._eid_index[rschema.eid] = rschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   588
        return rschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   589
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   590
    def add_relation_def(self, rdef):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   591
        """build a part of a relation schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   592
        (i.e. add a relation between two specific entity's types)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   593
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   594
        :type subject: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   595
        :param subject: entity's type that is subject of the relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   596
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   597
        :type rtype: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   598
        :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
   599
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   600
        :type obj: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   601
        :param obj: entity's type that is object of the relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   602
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   603
        :rtype: RelationSchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   604
        :param: the newly created or just completed relation schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   605
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   606
        rdef.name = rdef.name.lower()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   607
        rdef.subject = bw_normalize_etype(rdef.subject)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   608
        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
   609
        rdefs = super(CubicWebSchema, self).add_relation_def(rdef)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   610
        if rdefs:
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
   611
            try:
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   612
                self._eid_index[rdef.eid] = rdefs
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
   613
            except AttributeError:
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
   614
                pass # not a serialized schema
4003
b9436fe77c9e fix bad merge
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3998
diff changeset
   615
        return rdefs
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   616
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   617
    def del_relation_type(self, rtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   618
        rschema = self.rschema(rtype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   619
        self._eid_index.pop(rschema.eid, None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   620
        super(CubicWebSchema, self).del_relation_type(rtype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   621
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   622
    def del_relation_def(self, subjtype, rtype, objtype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   623
        for k, v in self._eid_index.items():
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   624
            if not isinstance(v, RelationDefinitionSchema):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   625
                continue
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   626
            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
   627
                del self._eid_index[k]
2718
3a56b87bb5d6 [schema] break when found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2716
diff changeset
   628
                break
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   629
        super(CubicWebSchema, self).del_relation_def(subjtype, rtype, objtype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   630
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   631
    def del_entity_type(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   632
        eschema = self.eschema(etype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   633
        self._eid_index.pop(eschema.eid, None)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   634
        # deal with has_text first, else its automatic deletion (see above)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   635
        # may trigger an error in ancestor's del_entity_type method
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   636
        if 'has_text' in eschema.subject_relations():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   637
            self.del_relation_def(etype, 'has_text', 'String')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   638
        super(CubicWebSchema, self).del_entity_type(etype)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   639
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   640
    def schema_by_eid(self, eid):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   641
        return self._eid_index[eid]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   642
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   643
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   644
# Possible constraints ########################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   645
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   646
class BaseRQLConstraint(BaseConstraint):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   647
    """base class for rql constraints
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   648
    """
6232
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   649
    distinct_query = None
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   650
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   651
    def __init__(self, restriction, mainvars=None):
3963
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   652
        self.restriction = normalize_expression(restriction)
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   653
        if mainvars is None:
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   654
            mainvars = guess_rrqlexpr_mainvars(restriction)
3963
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   655
        else:
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   656
            normmainvars = []
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   657
            for mainvar in mainvars.split(','):
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   658
                mainvar = mainvar.strip()
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   659
                if not mainvar.isalpha():
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   660
                    raise Exception('bad mainvars %s' % mainvars)
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   661
                normmainvars.append(mainvar)
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   662
            assert mainvars, 'bad mainvars %s' % mainvars
0d592677e55f nicer mainvars/expression handling when initializing rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3961
diff changeset
   663
            mainvars = ','.join(sorted(normmainvars))
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   664
        self.mainvars = mainvars
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   665
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   666
    def serialize(self):
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   667
        # start with a comma for bw compat, see below
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   668
        return ';' + self.mainvars + ';' + self.restriction
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   669
5378
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
   670
    @classmethod
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   671
    def deserialize(cls, value):
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   672
        # XXX < 3.5.10 bw compat
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   673
        if not value.startswith(';'):
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   674
            return cls(value)
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   675
        _, mainvars, restriction = value.split(';', 2)
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   676
        return cls(restriction, mainvars)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   677
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   678
    def check(self, entity, rtype, value):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   679
        """return true if the value satisfy the constraint, else false"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   680
        # implemented as a hook in the repository
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   681
        return 1
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   682
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   683
    def repo_check(self, session, eidfrom, rtype, eidto):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   684
        """raise ValidationError if the relation doesn't satisfy the constraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   685
        """
3554
26e586f3c15c [schema] make RQL* constraints usable w/ attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   686
        pass # this is a vocabulary constraint, not enforce XXX why?
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   687
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   688
    def __str__(self):
6232
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   689
        if self.distinct_query:
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   690
            selop = 'Any'
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   691
        else:
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   692
            selop = 'DISTINCT Any'
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   693
        return '%s(%s %s WHERE %s)' % (self.__class__.__name__, selop,
d992176d17b7 [schema] ensure DISTINCT is displayed for constraint using it, this ease debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6229
diff changeset
   694
                                       self.mainvars, self.restriction)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   695
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   696
    def __repr__(self):
3965
94f95928f5ae nicer __str__ and __repr__ methods on rql constraints
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3964
diff changeset
   697
        return '<%s @%#x>' % (self.__str__(), id(self))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   698
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   699
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   700
class RQLVocabularyConstraint(BaseRQLConstraint):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   701
    """the rql vocabulary constraint :
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   702
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   703
    limit the proposed values to a set of entities returned by a rql query,
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   704
    but this is not enforced at the repository level
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   705
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   706
     restriction is additional rql restriction that will be added to
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   707
     a predefined query, where the S and O variables respectivly represent
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   708
     the subject and the object of the relation
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   709
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   710
     mainvars is a string that should be used as selection variable (eg
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   711
     `'Any %s WHERE ...' % mainvars`). If not specified, an attempt will be
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   712
     done to guess it according to variable used in the expression.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   713
    """
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   714
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   715
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   716
class RepoEnforcedRQLConstraintMixIn(object):
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   717
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   718
    def __init__(self, restriction, mainvars=None, msg=None):
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   719
        super(RepoEnforcedRQLConstraintMixIn, self).__init__(restriction, mainvars)
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   720
        self.msg = msg
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   721
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   722
    def serialize(self):
3968
e8dbad65a7a2 fix format string
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3967
diff changeset
   723
        # start with a semicolon for bw compat, see below
e8dbad65a7a2 fix format string
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3967
diff changeset
   724
        return ';%s;%s\n%s' % (self.mainvars, self.restriction,
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   725
                               self.msg or '')
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   726
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   727
    def deserialize(cls, value):
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   728
        # XXX < 3.5.10 bw compat
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   729
        if not value.startswith(';'):
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   730
            return cls(value)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   731
        value, msg = value.split('\n', 1)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   732
        _, mainvars, restriction = value.split(';', 2)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   733
        return cls(restriction, mainvars, msg)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   734
    deserialize = classmethod(deserialize)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   735
3554
26e586f3c15c [schema] make RQL* constraints usable w/ attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   736
    def repo_check(self, session, eidfrom, rtype, eidto=None):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   737
        """raise ValidationError if the relation doesn't satisfy the constraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   738
        """
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   739
        if not self.match_condition(session, eidfrom, eidto):
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   740
            # XXX at this point if both or neither of S and O are in mainvar we
6109
47d9c0e0f7b7 integrate Celso's work on translation file: proper/complete spanish translation, fixed some typos in french translation, occured -> occurred fix in various places
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6017
diff changeset
   741
            # dunno if the validation error `occurred` on eidfrom or eidto (from
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   742
            # user interface point of view)
5030
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   743
            #
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   744
            # possible enhancement: check entity being created, it's probably
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   745
            # the main eid unless this is a composite relation
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   746
            if eidto is None or 'S' in self.mainvars or not 'O' in self.mainvars:
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   747
                maineid = eidfrom
5030
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   748
                qname = role_name(rtype, 'subject')
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   749
            else:
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   750
                maineid = eidto
5030
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   751
                qname = role_name(rtype, 'object')
3964
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   752
            if self.msg:
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   753
                msg = session._(self.msg)
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   754
            else:
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   755
                msg = '%(constraint)s %(restriction)s failed' % {
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   756
                    'constraint':  session._(self.type()),
21387ffb0731 refactor so that we can specify an extra argument to constraints which
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3963
diff changeset
   757
                    'restriction': self.restriction}
5030
5238d9a8dfee [form] put qualified name on validation error, should fix #784299
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
   758
            raise ValidationError(maineid, {qname: msg})
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   759
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   760
    def exec_query(self, session, eidfrom, eidto):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   761
        if eidto is None:
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   762
            # checking constraint for an attribute relation
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   763
            restriction = 'S eid %(s)s, ' + self.restriction
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5122
diff changeset
   764
            args = {'s': eidfrom}
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   765
        else:
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   766
            restriction = 'S eid %(s)s, O eid %(o)s, ' + self.restriction
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5122
diff changeset
   767
            args = {'s': eidfrom, 'o': eidto}
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   768
        rql = 'Any %s WHERE %s' % (self.mainvars,  restriction)
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   769
        if self.distinct_query:
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   770
            rql = 'DISTINCT ' + rql
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5122
diff changeset
   771
        return session.execute(rql, args, build_descr=False)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   772
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   773
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   774
class RQLConstraint(RepoEnforcedRQLConstraintMixIn, RQLVocabularyConstraint):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   775
    """the rql constraint is similar to the RQLVocabularyConstraint but
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   776
    are also enforced at the repository level
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   777
    """
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   778
    distinct_query = False
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   779
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   780
    def match_condition(self, session, eidfrom, eidto):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   781
        return self.exec_query(session, eidfrom, eidto)
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   782
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   783
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   784
class RQLUniqueConstraint(RepoEnforcedRQLConstraintMixIn, BaseRQLConstraint):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   785
    """the unique rql constraint check that the result of the query isn't
6233
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   786
    greater than one.
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   787
6233
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   788
    You *must* specify mainvars when instantiating the constraint since there is
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   789
    no way to guess it correctly (e.g. if using S,O or U the constraint will
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   790
    always be satisfied because we've to use a DISTINCT query).
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   791
    """
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   792
    # XXX turns mainvars into a required argument in __init__
612b7d947a4c [schema] turn comment into docstring for RQLUniqueConstraint
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6232
diff changeset
   793
    distinct_query = True
3985
d5bf894fcf02 add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3980
diff changeset
   794
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   795
    def match_condition(self, session, eidfrom, eidto):
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
   796
        return len(self.exec_query(session, eidfrom, eidto)) <= 1
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   797
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   798
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   799
class RQLExpression(object):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   800
    def __init__(self, expression, mainvars, eid):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   801
        self.eid = eid # eid of the entity representing this rql expression
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   802
        if not isinstance(mainvars, unicode):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   803
            mainvars = unicode(mainvars)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   804
        self.mainvars = mainvars
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   805
        self.expression = normalize_expression(expression)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   806
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   807
            self.rqlst = parse(self.full_rql, print_errors=False).children[0]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   808
        except RQLSyntaxError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   809
            raise RQLSyntaxError(expression)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   810
        for mainvar in mainvars.split(','):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   811
            if len(self.rqlst.defined_vars[mainvar].references()) <= 2:
2142
098aa2075903 include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   812
                _LOGGER.warn('You did not use the %s variable in your RQL '
098aa2075903 include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   813
                             'expression %s', mainvar, self)
3825
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3824
diff changeset
   814
        # syntax tree used by read security (inserted in queries when necessary)
3240
8604a15995d1 refactor so that rql rewriter may be used outside the server. Enhance it to be usable for RRQLExpression as well
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2967
diff changeset
   815
        self.snippet_rqlst = parse(self.minimal_rql, print_errors=False).children[0]
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   816
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   817
    def __str__(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   818
        return self.full_rql
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   819
    def __repr__(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   820
        return '%s(%s)' % (self.__class__.__name__, self.full_rql)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   821
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   822
    def __cmp__(self, other):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   823
        if hasattr(other, 'expression'):
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   824
            return cmp(other.expression, self.expression)
4066
0555f170c4d1 __cmp__ should *NOT* return False when different
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4045
diff changeset
   825
        return -1
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   826
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   827
    def __deepcopy__(self, memo):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   828
        return self.__class__(self.expression, self.mainvars)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   829
    def __getstate__(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   830
        return (self.expression, self.mainvars)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   831
    def __setstate__(self, state):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   832
        self.__init__(*state)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   833
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   834
    @cached
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   835
    def transform_has_permission(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   836
        found = None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   837
        rqlst = self.rqlst
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   838
        for var in rqlst.defined_vars.itervalues():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   839
            for varref in var.references():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   840
                rel = varref.relation()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   841
                if rel is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   842
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   843
                try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   844
                    prefix, action, suffix = rel.r_type.split('_')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   845
                except ValueError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   846
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   847
                if prefix != 'has' or suffix != 'permission' or \
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   848
                       not action in ('add', 'delete', 'update', 'read'):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   849
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   850
                if found is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   851
                    found = []
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   852
                    rqlst.save_state()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   853
                assert rel.children[0].name == 'U'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   854
                objvar = rel.children[1].children[0].variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   855
                rqlst.remove_node(rel)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   856
                selected = [v.name for v in rqlst.get_selected_variables()]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   857
                if objvar.name not in selected:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   858
                    colindex = len(selected)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   859
                    rqlst.add_selected(objvar)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   860
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   861
                    colindex = selected.index(objvar.name)
4717
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
   862
                found.append((action, colindex))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   863
                # remove U eid %(u)s if U is not used in any other relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   864
                uvrefs = rqlst.defined_vars['U'].references()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   865
                if len(uvrefs) == 1:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   866
                    rqlst.remove_node(uvrefs[0].relation())
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   867
        if found is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   868
            rql = rqlst.as_string()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   869
            if len(rqlst.selection) == 1 and isinstance(rqlst.where, nodes.Relation):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   870
                # only "Any X WHERE X eid %(x)s" remaining, no need to execute the rql
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   871
                keyarg = rqlst.selection[0].name.lower()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   872
            else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   873
                keyarg = None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   874
            rqlst.recover()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   875
            return rql, found, keyarg
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   876
        return rqlst.as_string(), None, None
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   877
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   878
    def _check(self, session, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   879
        """return True if the rql expression is matching the given relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   880
        between fromeid and toeid
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   881
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   882
        session may actually be a request as well
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   883
        """
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
   884
        creating = kwargs.get('creating')
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
   885
        if not creating and self.eid is not None:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   886
            key = (self.eid, tuple(sorted(kwargs.iteritems())))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   887
            try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   888
                return session.local_perm_cache[key]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   889
            except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   890
                pass
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   891
        rql, has_perm_defs, keyarg = self.transform_has_permission()
5703
24ca7615379b [security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5531
diff changeset
   892
        # when creating an entity, expression related to X satisfied
24ca7615379b [security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5531
diff changeset
   893
        if creating and 'X' in self.rqlst.defined_vars:
24ca7615379b [security] consider any rql expression refering to X while X is being created as satisfied
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5531
diff changeset
   894
            return True
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   895
        if keyarg is None:
4619
f4254586e867 [security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4608
diff changeset
   896
            kwargs.setdefault('u', session.user.eid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   897
            try:
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5122
diff changeset
   898
                rset = session.execute(rql, kwargs, build_descr=True)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   899
            except NotImplementedError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   900
                self.critical('cant check rql expression, unsupported rql %s', rql)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   901
                if self.eid is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   902
                    session.local_perm_cache[key] = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   903
                return False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   904
            except TypeResolverException, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   905
                # some expression may not be resolvable with current kwargs
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   906
                # (type conflict)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   907
                self.warning('%s: %s', rql, str(ex))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   908
                if self.eid is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   909
                    session.local_perm_cache[key] = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   910
                return False
5531
0ce62ac0d1d7 catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   911
            except Unauthorized, ex:
0ce62ac0d1d7 catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   912
                self.debug('unauthorized %s: %s', rql, str(ex))
0ce62ac0d1d7 catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   913
                if self.eid is not None:
0ce62ac0d1d7 catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   914
                    session.local_perm_cache[key] = False
0ce62ac0d1d7 catch unauthorized when executing rql to check an rql expression. Fix #968824
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   915
                return False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   916
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   917
            rset = session.eid_rset(kwargs[keyarg])
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   918
        # if no special has_*_permission relation in the rql expression, just
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   919
        # check the result set contains something
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   920
        if has_perm_defs is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   921
            if rset:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   922
                if self.eid is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   923
                    session.local_perm_cache[key] = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   924
                return True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   925
        elif rset:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   926
            # check every special has_*_permission relation is satisfied
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   927
            get_eschema = session.vreg.schema.eschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   928
            try:
4717
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
   929
                for eaction, col in has_perm_defs:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   930
                    for i in xrange(len(rset)):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   931
                        eschema = get_eschema(rset.description[i][col])
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   932
                        eschema.check_perm(session, eaction, eid=rset[i][col])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   933
                if self.eid is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   934
                    session.local_perm_cache[key] = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   935
                return True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   936
            except Unauthorized:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   937
                pass
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   938
        if self.eid is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   939
            session.local_perm_cache[key] = False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   940
        return False
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   941
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   942
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   943
    def minimal_rql(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   944
        return 'Any %s WHERE %s' % (self.mainvars, self.expression)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   945
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   946
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   947
class ERQLExpression(RQLExpression):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   948
    def __init__(self, expression, mainvars=None, eid=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   949
        RQLExpression.__init__(self, expression, mainvars or 'X', eid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   950
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   951
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   952
    def full_rql(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   953
        rql = self.minimal_rql
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   954
        rqlst = getattr(self, 'rqlst', None) # may be not set yet
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   955
        if rqlst is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   956
            defined = rqlst.defined_vars
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   957
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   958
            defined = set(split_expression(self.expression))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   959
        if 'X' in defined:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   960
            rql += ', X eid %(x)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   961
        if 'U' in defined:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   962
            rql += ', U eid %(u)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   963
        return rql
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   964
4619
f4254586e867 [security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4608
diff changeset
   965
    def check(self, session, eid=None, creating=False, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   966
        if 'X' in self.rqlst.defined_vars:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   967
            if eid is None:
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
   968
                if creating:
4619
f4254586e867 [security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4608
diff changeset
   969
                    return self._check(session, creating=True, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   970
                return False
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
   971
            assert creating == False
4619
f4254586e867 [security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4608
diff changeset
   972
            return self._check(session, x=eid, **kwargs)
f4254586e867 [security] allow to call .check on rql expression with a user eid specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4608
diff changeset
   973
        return self._check(session, **kwargs)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
   974
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   975
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   976
class RRQLExpression(RQLExpression):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   977
    def __init__(self, expression, mainvars=None, eid=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   978
        if mainvars is None:
3961
d1cbf77db999 fix RQLUniqueConstraint behaviour by using a DISTINCT query and allowing
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3827
diff changeset
   979
            mainvars = guess_rrqlexpr_mainvars(expression)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   980
        RQLExpression.__init__(self, expression, mainvars, eid)
3827
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   981
        # graph of links between variable, used by rql rewriter
3826
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   982
        self.vargraph = {}
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   983
        for relation in self.rqlst.get_nodes(nodes.Relation):
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   984
            try:
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   985
                rhsvarname = relation.children[1].children[0].variable.name
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   986
                lhsvarname = relation.children[0].name
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   987
            except AttributeError:
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   988
                pass
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   989
            else:
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   990
                self.vargraph.setdefault(lhsvarname, []).append(rhsvarname)
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   991
                self.vargraph.setdefault(rhsvarname, []).append(lhsvarname)
0c0c051863cb close #511810: bad rql generated when looking for vocabulary for a relation on an entity which doesn't exist (yet)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3825
diff changeset
   992
                #self.vargraph[(lhsvarname, rhsvarname)] = relation.r_type
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   993
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   994
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   995
    def full_rql(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   996
        rql = self.minimal_rql
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   997
        rqlst = getattr(self, 'rqlst', None) # may be not set yet
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   998
        if rqlst is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   999
            defined = rqlst.defined_vars
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1000
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1001
            defined = set(split_expression(self.expression))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1002
        if 'S' in defined:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1003
            rql += ', S eid %(s)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1004
        if 'O' in defined:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1005
            rql += ', O eid %(o)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1006
        if 'U' in defined:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1007
            rql += ', U eid %(u)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1008
        return rql
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1009
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1010
    def check(self, session, fromeid=None, toeid=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1011
        kwargs = {}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1012
        if 'S' in self.rqlst.defined_vars:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1013
            if fromeid is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1014
                return False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1015
            kwargs['s'] = fromeid
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1016
        if 'O' in self.rqlst.defined_vars:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1017
            if toeid is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1018
                return False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1019
            kwargs['o'] = toeid
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1020
        return self._check(session, **kwargs)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1021
4570
ede247bbbf62 follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4466
diff changeset
  1022
# in yams, default 'update' perm for attributes granted to managers and owners.
ede247bbbf62 follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4466
diff changeset
  1023
# Within cw, we want to default to users who may edit the entity holding the
ede247bbbf62 follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4466
diff changeset
  1024
# attribute.
4586
440e340c61fe DEFAULT_ATTRPERMS is now public
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4575
diff changeset
  1025
ybo.DEFAULT_ATTRPERMS['update'] = (
4570
ede247bbbf62 follow yams api change: attributes permissions are now defined for
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4466
diff changeset
  1026
    'managers', ERQLExpression('U has_update_permission X'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1027
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
  1028
# 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
  1029
2460
ce1a7ffc6c90 fix a couple NameErrors
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2459
diff changeset
  1030
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
  1031
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
  1032
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
  1033
    """extends default EntityType's metaclass to add workflow relations
5378
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1034
    (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
  1035
    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
  1036
    """
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
  1037
    def __new__(mcs, name, bases, classdict):
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1038
        abstract = classdict.pop('__abstract__', False)
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1039
        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
  1040
                                                          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
  1041
        if not abstract:
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1042
            make_workflowable(cls)
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1043
        return cls
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1044
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
  1045
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
  1046
    """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
  1047
    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
  1048
    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
  1049
    """
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
  1050
    __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
  1051
    __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
  1052
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
  1053
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
  1054
def make_workflowable(cls, in_state_descr=None):
5378
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1055
    """Adds workflow relations as :class:`WorkflowableEntityType`, but usable on
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1056
    existing classes which are not using that base class.
0f54a0e128ac [schema] cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5372
diff changeset
  1057
    """
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1058
    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
  1059
    # 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
  1060
    # 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
  1061
    etype = getattr(cls, 'name', cls.__name__)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1062
    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
  1063
        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
  1064
        yams_add_relation(cls.__relations__, rdef)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1065
    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
  1066
        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
  1067
                                      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
  1068
        yams_add_relation(cls.__relations__, rdef)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2782
diff changeset
  1069
    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
  1070
        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
  1071
        yams_add_relation(cls.__relations__, rdef)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1072
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
  1073
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1074
# schema loading ##############################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1075
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1076
CONSTRAINTS['RQLConstraint'] = RQLConstraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1077
CONSTRAINTS['RQLUniqueConstraint'] = RQLUniqueConstraint
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1078
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
  1079
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
  1080
PyFileReader.context.update(CONSTRAINTS)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1081
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1082
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1083
class BootstrapSchemaLoader(SchemaLoader):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1084
    """cubicweb specific schema loader, loading only schema necessary to read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1085
    the persistent schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1086
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1087
    schemacls = CubicWebSchema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1088
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1089
    def load(self, config, path=(), **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1090
        """return a Schema instance from the schema definition read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1091
        from <directory>
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1092
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1093
        return super(BootstrapSchemaLoader, self).load(
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1094
            path, config.appid, register_base_types=False, **kwargs)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1095
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1096
    def _load_definition_files(self, cubes=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1097
        # bootstraping, ignore cubes
2735
39c942241b48 no need for lib_directory
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2730
diff changeset
  1098
        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
  1099
        self.info('loading %s', filepath)
098aa2075903 include_schema_files is useless
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
  1100
        self.handle_file(filepath)
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1101
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1102
    def unhandled_file(self, filepath):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1103
        """called when a file without handler associated has been found"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1104
        self.warning('ignoring file %r', filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1105
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1106
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1107
class CubicWebSchemaLoader(BootstrapSchemaLoader):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1108
    """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
  1109
    instance's schema
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1110
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1111
1034
0356bbfb2f26 fix to pass arguments to base class
sylvain.thenault@logilab.fr
parents: 1016
diff changeset
  1112
    def load(self, config, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1113
        """return a Schema instance from the schema definition read
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1114
        from <directory>
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1115
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1116
        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
  1117
        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
  1118
        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
  1119
            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
  1120
                self.extrapath[cubesdir] = 'cubes'
372
a8a975a88368 check apphome is not None
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
  1121
        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
  1122
            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
  1123
        else:
2598
a66fe74bd9fc [R schema] dont give an iterator, it's a trap
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2596
diff changeset
  1124
            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
  1125
        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
  1126
            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
  1127
        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
  1128
            # 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
  1129
            cleanup_sys_modules([join(cubicweb.CW_SOFTWARE_ROOT, 'schemas')])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1130
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1131
    def _load_definition_files(self, cubes):
2741
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1132
        for filepath in (join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'bootstrap.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1133
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'base.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1134
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'workflow.py'),
148d0cea1fb5 [schema] oops
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2736
diff changeset
  1135
                         join(cubicweb.CW_SOFTWARE_ROOT, 'schemas', 'Bookmark.py')):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1136
            self.info('loading %s', filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1137
            self.handle_file(filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1138
        for cube in cubes:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1139
            for filepath in self.get_schema_files(cube):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1140
                self.info('loading %s', filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1141
                self.handle_file(filepath)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1142
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1143
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
  1144
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
  1145
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
  1146
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
  1147
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1148
# _() 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
  1149
# translation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1150
PERM_USE_TEMPLATE_FORMAT = _('use_template_format')
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
  1151
NEED_PERM_FORMATS = [_('text/cubicweb-page-template')]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1152
2531
531ea4e7013e [cleanup] nicer imports
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2526
diff changeset
  1153
@monkeypatch(FormatConstraint)
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1154
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
  1155
    cw = None
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1156
    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
  1157
        cw = entity._cw
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3287
diff changeset
  1158
    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
  1159
        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
  1160
    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
  1161
        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
  1162
            # 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
  1163
            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
  1164
                      not cw.is_hook_category_activated('integrity') or \
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
  1165
                      cw.user.has_permission(PERM_USE_TEMPLATE_FORMAT)
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
  1166
        else:
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
  1167
            hasperm = cw.user.has_permission(PERM_USE_TEMPLATE_FORMAT)
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
  1168
        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
  1169
            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
  1170
    return self.regular_formats
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1171
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1172
# XXX monkey patch PyFileReader.import_erschema until bw_normalize_etype is
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1173
# necessary
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1174
orig_import_erschema = PyFileReader.import_erschema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1175
def bw_import_erschema(self, ertype, schemamod=None, instantiate=True):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1176
    return orig_import_erschema(self, bw_normalize_etype(ertype), schemamod, instantiate)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1177
PyFileReader.import_erschema = bw_import_erschema
1451
982e8616d9a2 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1398
diff changeset
  1178
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1179
# XXX itou for some Statement methods
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1180
from rql import stmts
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1181
orig_get_etype = stmts.ScopeNode.get_etype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1182
def bw_get_etype(self, name):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1183
    return orig_get_etype(self, bw_normalize_etype(name))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1184
stmts.ScopeNode.get_etype = bw_get_etype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1185
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1186
orig_add_main_variable_delete = stmts.Delete.add_main_variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1187
def bw_add_main_variable_delete(self, etype, vref):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1188
    return orig_add_main_variable_delete(self, bw_normalize_etype(etype), vref)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1189
stmts.Delete.add_main_variable = bw_add_main_variable_delete
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1190
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1191
orig_add_main_variable_insert = stmts.Insert.add_main_variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1192
def bw_add_main_variable_insert(self, etype, vref):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1193
    return orig_add_main_variable_insert(self, bw_normalize_etype(etype), vref)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1194
stmts.Insert.add_main_variable = bw_add_main_variable_insert
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1195
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1196
orig_set_statement_type = stmts.Select.set_statement_type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1197
def bw_set_statement_type(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1198
    return orig_set_statement_type(self, bw_normalize_etype(etype))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1199
stmts.Select.set_statement_type = bw_set_statement_type
2736
c5048502409f restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2735
diff changeset
  1200
c5048502409f restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2735
diff changeset
  1201
# XXX deprecated
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
  1202
2736
c5048502409f restore backward compat, still imported a lot
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2735
diff changeset
  1203
from yams.buildobjs import RichString
4717
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1204
from yams.constraints import StaticVocabularyConstraint
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1205
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1206
RichString = class_moved(RichString)
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1207
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1208
StaticVocabularyConstraint = class_moved(StaticVocabularyConstraint)
535705688f4f proper deprecation warning when import class that should be imported from yams
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4702
diff changeset
  1209
FormatConstraint = class_moved(FormatConstraint)
3978
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
  1210
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
  1211
PyFileReader.context['ERQLExpression'] = yobsolete(ERQLExpression)
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
  1212
PyFileReader.context['RRQLExpression'] = yobsolete(RRQLExpression)
2c95e3033f64 finish yesterday work on rql constraints:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3968
diff changeset
  1213
PyFileReader.context['WorkflowableEntityType'] = WorkflowableEntityType