entity.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 22 Jun 2011 18:53:36 +0200
changeset 7552 82dde8276a5b
parent 7543 570522300e22
child 7702 73cadb5d0097
child 7899 4f6ff757f83c
permissions -rw-r--r--
[datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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"""Base class for entity objects manipulated in clients"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from logilab.common import interface
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from logilab.common.decorators import cached
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from logilab.common.deprecation import deprecated
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from logilab.mtconverter import TransformData, TransformError, xml_escape
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from rql.utils import rqlvar_maker
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from cubicweb import Unauthorized, typed_eid, neg_role
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from cubicweb.rset import ResultSet
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from cubicweb.selectors import yes
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from cubicweb.appobject import AppObject
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from cubicweb.req import _check_cw_unsafe
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from cubicweb.schema import RQLVocabularyConstraint, RQLConstraint
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from cubicweb.rqlrewrite import RQLRewriter
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from cubicweb.uilib import printable_value, soup2xhtml
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from cubicweb.mixins import MI_REL_TRIGGERS
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from cubicweb.mttransforms import ENGINE
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_marker = object()
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def greater_card(rschema, subjtypes, objtypes, index):
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    for subjtype in subjtypes:
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        for objtype in objtypes:
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            card = rschema.rdef(subjtype, objtype).cardinality[index]
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            if card in '+*':
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                return card
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    return '1'
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def can_use_rest_path(value):
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    """return True if value can be used at the end of a Rest URL path"""
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    if value is None:
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        return False
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    value = unicode(value)
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    # the check for ?, /, & are to prevent problems when running
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    # behind Apache mod_proxy
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    if value == u'' or u'?' in value or u'/' in value or u'&' in value:
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        return False
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    return True
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def remove_ambiguous_rels(attr_set, subjtypes, schema):
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    '''remove from `attr_set` the relations of entity types `subjtypes` that have
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    different entity type sets as target'''
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    for attr in attr_set.copy():
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        rschema = schema.rschema(attr)
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        if rschema.final:
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            continue
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        ttypes = None
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        for subjtype in subjtypes:
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            cur_ttypes = rschema.objects(subjtype)
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            if ttypes is None:
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                ttypes = cur_ttypes
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            elif cur_ttypes != ttypes:
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                attr_set.remove(attr)
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                break
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class Entity(AppObject):
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    """an entity instance has e_schema automagically set on
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    the class and instances has access to their issuing cursor.
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    A property is set for each attribute and relation on each entity's type
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    class. Becare that among attributes, 'eid' is *NEITHER* stored in the
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    dict containment (which acts as a cache for other attributes dynamically
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    fetched)
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    :type e_schema: `cubicweb.schema.EntitySchema`
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    :ivar e_schema: the entity's schema
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    :type rest_var: str
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    :cvar rest_var: indicates which attribute should be used to build REST urls
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                    If None is specified, the first non-meta attribute will
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                    be used
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    :type skip_copy_for: list
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    :cvar skip_copy_for: a list of relations that should be skipped when copying
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                         this kind of entity. Note that some relations such
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                         as composite relations or relations that have '?1' as object
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                         cardinality are always skipped.
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    """
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    __registry__ = 'etypes'
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    __select__ = yes()
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    # class attributes that must be set in class definition
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    rest_attr = None
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    fetch_attrs = None
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   111
    skip_copy_for = ('in_state',) # XXX turn into a set
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   112
    # class attributes set automatically at registration time
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   113
    e_schema = None
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   114
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   115
    @classmethod
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   116
    def __initialize__(cls, schema):
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        """initialize a specific entity class by adding descriptors to access
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        entity type's attributes and relations
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   119
        """
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        etype = cls.__regid__
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        assert etype != 'Any', etype
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        cls.e_schema = eschema = schema.eschema(etype)
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        for rschema, _ in eschema.attribute_definitions():
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   124
            if rschema.type == 'eid':
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   125
                continue
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   126
            setattr(cls, rschema.type, Attribute(rschema.type))
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        mixins = []
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   128
        for rschema, _, role in eschema.relation_definitions():
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   129
            if (rschema, role) in MI_REL_TRIGGERS:
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   130
                mixin = MI_REL_TRIGGERS[(rschema, role)]
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   131
                if not (issubclass(cls, mixin) or mixin in mixins): # already mixed ?
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                    mixins.append(mixin)
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                for iface in getattr(mixin, '__implements__', ()):
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                    if not interface.implements(cls, iface):
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                        interface.extend(cls, iface)
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   136
            if role == 'subject':
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   137
                attr = rschema.type
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   138
            else:
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   139
                attr = 'reverse_%s' % rschema.type
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   140
            setattr(cls, attr, Relation(rschema, role))
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   141
        if mixins:
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   142
            # see etype class instantation in cwvreg.ETypeRegistry.etype_class method:
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   143
            # due to class dumping, cls is the generated top level class with actual
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   144
            # user class as (only) parent. Since we want to be able to override mixins
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   145
            # method from this user class, we have to take care to insert mixins after that
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   146
            # class
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   147
            #
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   148
            # note that we don't plug mixins as user class parent since it causes pb
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   149
            # with some cases of entity classes inheritance.
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   150
            mixins.insert(0, cls.__bases__[0])
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   151
            mixins += cls.__bases__[1:]
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   152
            cls.__bases__ = tuple(mixins)
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   153
            cls.info('plugged %s mixins on %s', mixins, cls)
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   154
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   155
    fetch_attrs = ('modification_date',)
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   156
    @classmethod
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   157
    def fetch_order(cls, attr, var):
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   158
        """class method used to control sort order when multiple entities of
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   159
        this type are fetched
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   160
        """
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   161
        return cls.fetch_unrelated_order(attr, var)
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   162
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   163
    @classmethod
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   164
    def fetch_unrelated_order(cls, attr, var):
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   165
        """class method used to control sort order when multiple entities of
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   166
        this type are fetched to use in edition (eg propose them to create a
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diff changeset
   167
        new relation on an edited entity).
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   168
        """
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   169
        if attr == 'modification_date':
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   170
            return '%s DESC' % var
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diff changeset
   171
        return None
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   172
0
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   173
    @classmethod
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   174
    def fetch_rql(cls, user, restriction=None, fetchattrs=None, mainvar='X',
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   175
                  settype=True, ordermethod='fetch_order'):
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   176
        """return a rql to fetch all entities of the class type"""
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diff changeset
   177
        # XXX update api and implementation to AST manipulation (see unrelated rql)
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   178
        restrictions = restriction or []
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   179
        if settype:
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   180
            restrictions.append('%s is %s' % (mainvar, cls.__regid__))
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   181
        if fetchattrs is None:
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   182
            fetchattrs = cls.fetch_attrs
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   183
        selection = [mainvar]
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   184
        orderby = []
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   185
        # start from 26 to avoid possible conflicts with X
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   186
        # XXX not enough to be sure it'll be no conflicts
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   187
        varmaker = rqlvar_maker(index=26)
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   188
        cls._fetch_restrictions(mainvar, varmaker, fetchattrs, selection,
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   189
                                orderby, restrictions, user, ordermethod)
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   190
        rql = 'Any %s' % ','.join(selection)
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   191
        if orderby:
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   192
            rql +=  ' ORDERBY %s' % ','.join(orderby)
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   193
        rql += ' WHERE %s' % ', '.join(restrictions)
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   194
        return rql
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   195
0
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   196
    @classmethod
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   197
    def _fetch_restrictions(cls, mainvar, varmaker, fetchattrs,
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   198
                            selection, orderby, restrictions, user,
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   199
                            ordermethod='fetch_order', visited=None):
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   200
        eschema = cls.e_schema
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   201
        if visited is None:
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   202
            visited = set((eschema.type,))
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   203
        elif eschema.type in visited:
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   204
            # avoid infinite recursion
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   205
            return
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   206
        else:
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   207
            visited.add(eschema.type)
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   208
        _fetchattrs = []
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   209
        for attr in fetchattrs:
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   210
            try:
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diff changeset
   211
                rschema = eschema.subjrels[attr]
0
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diff changeset
   212
            except KeyError:
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   213
                cls.warning('skipping fetch_attr %s defined in %s (not found in schema)',
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diff changeset
   214
                            attr, cls.__regid__)
0
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   215
                continue
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diff changeset
   216
            rdef = eschema.rdef(attr)
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diff changeset
   217
            if not user.matching_groups(rdef.get_groups('read')):
0
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   218
                continue
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   219
            var = varmaker.next()
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   220
            selection.append(var)
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   221
            restriction = '%s %s %s' % (mainvar, attr, var)
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   222
            restrictions.append(restriction)
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diff changeset
   223
            if not rschema.final:
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diff changeset
   224
                card = rdef.cardinality[0]
0
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   225
                if card not in '?1':
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diff changeset
   226
                    cls.warning('bad relation %s specified in fetch attrs for %s',
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diff changeset
   227
                                 attr, cls)
0
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   228
                    selection.pop()
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   229
                    restrictions.pop()
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   230
                    continue
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                # XXX we need outer join in case the relation is not mandatory
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                # (card == '?')  *or if the entity is being added*, since in
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   233
                # that case the relation may still be missing. As we miss this
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                # later information here, systematically add it.
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                restrictions[-1] += '?'
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                targettypes = rschema.objects(eschema.type)
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                # XXX user._cw.vreg iiiirk
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                etypecls = user._cw.vreg['etypes'].etype_class(targettypes[0])
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                if len(targettypes) > 1:
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                    # find fetch_attrs common to all destination types
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                    fetchattrs = user._cw.vreg['etypes'].fetch_attrs(targettypes)
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                    remove_ambiguous_rels(fetchattrs, targettypes, user._cw.vreg.schema)
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   243
                else:
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                    fetchattrs = etypecls.fetch_attrs
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                etypecls._fetch_restrictions(var, varmaker, fetchattrs,
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                                             selection, orderby, restrictions,
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                                             user, ordermethod, visited=visited)
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            if ordermethod is not None:
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                orderterm = getattr(cls, ordermethod)(attr, var)
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                if orderterm:
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                    orderby.append(orderterm)
0
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        return selection, orderby, restrictions
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1471
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    @classmethod
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    @cached
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    def _rest_attr_info(cls):
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        mainattr, needcheck = 'eid', True
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        if cls.rest_attr:
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            mainattr = cls.rest_attr
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            needcheck = not cls.e_schema.has_unique_values(mainattr)
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   261
        else:
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            for rschema in cls.e_schema.subject_relations():
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   263
                if rschema.final and rschema != 'eid' and cls.e_schema.has_unique_values(rschema):
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                    mainattr = str(rschema)
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                    needcheck = False
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   266
                    break
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   267
        if mainattr == 'eid':
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            needcheck = False
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   269
        return mainattr, needcheck
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   270
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    @classmethod
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    def cw_instantiate(cls, execute, **kwargs):
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        """add a new entity of this given type
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   274
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   275
        Example (in a shell session):
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        >>> companycls = vreg['etypes'].etype_class(('Company')
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        >>> personcls = vreg['etypes'].etype_class(('Person')
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        >>> c = companycls.cw_instantiate(session.execute, name=u'Logilab')
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        >>> p = personcls.cw_instantiate(session.execute, firstname=u'John', lastname=u'Doe',
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   281
        ...                              works_for=c)
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   282
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        You can also set relation where the entity has 'object' role by
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        prefixing the relation by 'reverse_'.
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   285
        """
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   286
        rql = 'INSERT %s X' % cls.__regid__
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   287
        relations = []
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   288
        restrictions = set()
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   289
        pending_relations = []
7200
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   290
        eschema = cls.e_schema
7376
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   291
        qargs = {}
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   292
        for attr, value in kwargs.items():
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   293
            if attr.startswith('reverse_'):
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   294
                attr = attr[len('reverse_'):]
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   295
                role = 'object'
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   296
            else:
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   297
                role = 'subject'
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   298
            assert eschema.has_relation(attr, role), '%s %s not found on %s' % (attr, role, eschema)
7200
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diff changeset
   299
            rschema = eschema.subjrels[attr] if role == 'subject' else eschema.objrels[attr]
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   300
            if not rschema.final and isinstance(value, (tuple, list, set, frozenset)):
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   301
                if len(value) == 1:
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   302
                    value = iter(value).next()
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   303
                else:
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   304
                    # prepare IN clause
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   305
                    pending_relations.append( (attr, role, value) )
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   306
                    continue
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   307
            if rschema.final: # attribute
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   308
                relations.append('X %s %%(%s)s' % (attr, attr))
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   309
            else:
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   310
                rvar = attr.upper()
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   311
                if role == 'object':
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   312
                    relations.append('%s %s X' % (rvar, attr))
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   313
                else:
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   314
                    relations.append('X %s %s' % (attr, rvar))
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   315
                restriction = '%s eid %%(%s)s' % (rvar, attr)
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   316
                if not restriction in restrictions:
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   317
                    restrictions.add(restriction)
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   318
                if hasattr(value, 'eid'):
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   319
                    value = value.eid
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   320
            qargs[attr] = value
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   321
        if relations:
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   322
            rql = '%s: %s' % (rql, ', '.join(relations))
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   323
        if restrictions:
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   324
            rql = '%s WHERE %s' % (rql, ', '.join(restrictions))
7376
38524ca653e5 [entity] fix cw_instantiate w/ reverse_ relation crash when either multiple entities are given or an eid instead of an entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7308
diff changeset
   325
        created = execute(rql, qargs).get_entity(0, 0)
38524ca653e5 [entity] fix cw_instantiate w/ reverse_ relation crash when either multiple entities are given or an eid instead of an entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7308
diff changeset
   326
        for attr, role, values in pending_relations:
38524ca653e5 [entity] fix cw_instantiate w/ reverse_ relation crash when either multiple entities are given or an eid instead of an entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7308
diff changeset
   327
            if role == 'object':
38524ca653e5 [entity] fix cw_instantiate w/ reverse_ relation crash when either multiple entities are given or an eid instead of an entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7308
diff changeset
   328
                restr = 'Y %s X' % attr
5199
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   329
            else:
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   330
                restr = 'X %s Y' % attr
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   331
            execute('SET %s WHERE X eid %%(x)s, Y eid IN (%s)' % (
7376
38524ca653e5 [entity] fix cw_instantiate w/ reverse_ relation crash when either multiple entities are given or an eid instead of an entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7308
diff changeset
   332
                restr, ','.join(str(getattr(r, 'eid', r)) for r in values)),
5199
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   333
                    {'x': created.eid}, build_descr=False)
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   334
        return created
ebb50479d2ab [entity] move req.create_entity content to a cw_instantiate factory method on entity classes, so cube developpers will be able to easily customize instance creation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   335
1435
6cd6172718bb allow to instantiate an entity without rset
sylvain.thenault@logilab.fr
parents: 1363
diff changeset
   336
    def __init__(self, req, rset=None, row=None, col=0):
2822
f26578339214 deprecate appobject.vreg and rename appobject instance attributes using cw_ prefix
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2818
diff changeset
   337
        AppObject.__init__(self, req, rset=rset, row=row, col=col)
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   338
        self._cw_related_cache = {}
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   339
        if rset is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   340
            self.eid = rset[row][col]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   341
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   342
            self.eid = None
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   343
        self._cw_is_saved = True
5726
c3b99606644d [json] fix json serialization for recent simplejson implementation, and test encoding of entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5573
diff changeset
   344
        self.cw_attr_cache = {}
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   345
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
    def __repr__(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   347
        return '<Entity %s %s %s at %s>' % (
5726
c3b99606644d [json] fix json serialization for recent simplejson implementation, and test encoding of entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5573
diff changeset
   348
            self.e_schema, self.eid, self.cw_attr_cache.keys(), id(self))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   349
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   350
    def __cmp__(self, other):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   351
        raise NotImplementedError('comparison not implemented for %s' % self.__class__)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   352
5320
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   353
    def __json_encode__(self):
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   354
        """custom json dumps hook to dump the entity's eid
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   355
        which is not part of dict structure itself
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   356
        """
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   357
        dumpable = dict(self)
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   358
        dumpable['eid'] = self.eid
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   359
        return dumpable
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5199
diff changeset
   360
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   361
    def cw_adapt_to(self, interface):
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   362
        """return an adapter the entity to the given interface name.
4965
04543ed0bbdc [source] only consider edited_attributes in source.preprocess_entity()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4913
diff changeset
   363
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   364
        return None if it can not be adapted.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
        """
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   366
        try:
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   367
            cache = self._cw_adapters_cache
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   368
        except AttributeError:
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   369
            self._cw_adapters_cache = cache = {}
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   370
        try:
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   371
            return cache[interface]
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   372
        except KeyError:
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   373
            adapter = self._cw.vreg['adapters'].select_or_none(
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   374
                interface, self._cw, entity=self)
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   375
            cache[interface] = adapter
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
   376
            return adapter
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   377
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   378
    def has_eid(self): # XXX cw_has_eid
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
        """return True if the entity has an attributed eid (False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
        meaning that the entity has to be created
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
        try:
3664
af7ca3597b8d use typed_eid
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3626
diff changeset
   383
            typed_eid(self.eid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
            return True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
        except (ValueError, TypeError):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   386
            return False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   388
    def cw_is_saved(self):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
        """during entity creation, there is some time during which the entity
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   390
        has an eid attributed though it's not saved (eg during
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   391
        'before_add_entity' hooks). You can use this method to ensure the entity
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   392
        has an eid *and* is saved in its source.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
        """
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   394
        return self.has_eid() and self._cw_is_saved
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   395
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
    @cached
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   397
    def cw_metainformation(self):
7543
570522300e22 [ms, entity metas] add 'actual source' to entities table / base entity metadata cache. Closes #1767090
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7514
diff changeset
   398
        res = self._cw.describe(self.eid, asdict=True)
570522300e22 [ms, entity metas] add 'actual source' to entities table / base entity metadata cache. Closes #1767090
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7514
diff changeset
   399
        # use 'asource' and not 'source' since this is the actual source,
570522300e22 [ms, entity metas] add 'actual source' to entities table / base entity metadata cache. Closes #1767090
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7514
diff changeset
   400
        # while 'source' is the physical source (where it's stored)
570522300e22 [ms, entity metas] add 'actual source' to entities table / base entity metadata cache. Closes #1767090
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7514
diff changeset
   401
        res['source'] = self._cw.source_defs()[res.pop('asource')]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
        return res
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   404
    def cw_check_perm(self, action):
3890
d7a270f50f54 backport stable branch (one more time painfully)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3777 3877
diff changeset
   405
        self.e_schema.check_perm(self._cw, action, eid=self.eid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   407
    def cw_has_perm(self, action):
3890
d7a270f50f54 backport stable branch (one more time painfully)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3777 3877
diff changeset
   408
        return self.e_schema.has_perm(self._cw, action, eid=self.eid)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   409
6085
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   410
    def view(self, __vid, __registry='views', w=None, initargs=None, **kwargs): # XXX cw_view
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
        """shortcut to apply a view on this entity"""
6085
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   412
        if initargs is None:
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   413
            initargs = kwargs
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   414
        else:
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   415
            initargs.update(kwargs)
4451
65f4665233e6 misc typos found on my way: NameError / SyntaxError / double __select__, <sigh ...>
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4436
diff changeset
   416
        view = self._cw.vreg[__registry].select(__vid, self._cw, rset=self.cw_rset,
3459
e134d2dd9992 [entity] pass cw_row and cw_col to select(vid, ...) in self.view
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3452
diff changeset
   417
                                                row=self.cw_row, col=self.cw_col,
6085
8a059eefac75 [entity] entity.view now support initargs as req.view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5980
diff changeset
   418
                                                **initargs)
5522
6be95896d49e [entity] avoid getting w in cw_extra_kwargs when calling .view
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   419
        return view.render(row=self.cw_row, col=self.cw_col, w=w, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   421
    def absolute_url(self, *args, **kwargs): # XXX cw_url
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
        """return an absolute url to view this entity"""
2059
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   423
        # use *args since we don't want first argument to be "anonymous" to
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   424
        # avoid potential clash with kwargs
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   425
        if args:
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   426
            assert len(args) == 1, 'only 0 or 1 non-named-argument expected'
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   427
            method = args[0]
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   428
        else:
af33833d7571 absolute_url / build_url refactoring to avoid potential name clash
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2058
diff changeset
   429
            method = None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
        # in linksearch mode, we don't want external urls else selecting
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
        # the object for use in the relation is tricky
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   432
        # XXX search_state is web specific
6317
0d4dd5f6f05c [entity, url] we should not set base_url in kwargs when actually unset
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6307
diff changeset
   433
        use_ext_id = False
6307
c07763c59fcb [entity] fix typo in absolute_url method, breaking some code w/ control of absolute url of external entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6258
diff changeset
   434
        if 'base_url' not in kwargs and \
6100
3cd1e6a74830 fix bug introduced by 6098:a0fde9334dd0
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6099
diff changeset
   435
               getattr(self._cw, 'search_state', ('normal',))[0] == 'normal':
7552
82dde8276a5b [datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7543
diff changeset
   436
            sourcemeta = self.cw_metainformation()['source']
82dde8276a5b [datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7543
diff changeset
   437
            if sourcemeta.get('use-cwuri-as-url'):
82dde8276a5b [datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7543
diff changeset
   438
                return self.cwuri # XXX consider kwargs?
82dde8276a5b [datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7543
diff changeset
   439
            if sourcemeta.get('base-url'):
82dde8276a5b [datafeed, entities] url for entities from a datafeed source should be on their origin site. Closes #1769391
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7543
diff changeset
   440
                kwargs['base_url'] = sourcemeta['base-url']
6317
0d4dd5f6f05c [entity, url] we should not set base_url in kwargs when actually unset
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6307
diff changeset
   441
                use_ext_id = True
1904
e23536d29231 minor refactoring of absolute_url()
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1842
diff changeset
   442
        if method in (None, 'view'):
1842
c7a22540d6f7 add some bw compat code for old rest_path prototype
sylvain.thenault@logilab.fr
parents: 1840
diff changeset
   443
            try:
6098
a0fde9334dd0 [entity] base_url argument may be explicitly specified for other purpose (eg http/https site version control)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6085
diff changeset
   444
                kwargs['_restpath'] = self.rest_path(use_ext_id)
1842
c7a22540d6f7 add some bw compat code for old rest_path prototype
sylvain.thenault@logilab.fr
parents: 1840
diff changeset
   445
            except TypeError:
3405
9d31c9cb8103 nicer deprecation warnings
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3382
diff changeset
   446
                warn('[3.4] %s: rest_path() now take use_ext_eid argument, '
3376
f5c69485381f [appobjects] use __regid__ instead of __id__, more explicit
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
   447
                     'please update' % self.__regid__, DeprecationWarning)
1842
c7a22540d6f7 add some bw compat code for old rest_path prototype
sylvain.thenault@logilab.fr
parents: 1840
diff changeset
   448
                kwargs['_restpath'] = self.rest_path()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
            kwargs['rql'] = 'Any X WHERE X eid %s' % self.eid
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   451
        return self._cw.build_url(method, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   452
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   453
    def rest_path(self, use_ext_eid=False): # XXX cw_rest_path
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   454
        """returns a REST-like (relative) path for this entity"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   455
        mainattr, needcheck = self._rest_attr_info()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   456
        etype = str(self.e_schema)
1840
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   457
        path = etype.lower()
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   458
        if mainattr != 'eid':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   459
            value = getattr(self, mainattr)
6099
b22a4a3895df work around Apache's mod_proxy limitation with special chars in URLs by not using Rest urls when such a case is detected
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6098
diff changeset
   460
            if not can_use_rest_path(value):
1840
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   461
                mainattr = 'eid'
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   462
                path += '/eid'
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   463
            elif needcheck:
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   464
                # make sure url is not ambiguous
4363
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   465
                try:
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   466
                    nbresults = self.__unique
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   467
                except AttributeError:
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   468
                    rql = 'Any COUNT(X) WHERE X is %s, X %s %%(value)s' % (
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   469
                        etype, mainattr)
5c18d82042fb cache result of the COUNT query used to see if a non unique attribute may be used as rest path on the entity instance to avoid recomputing it later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   470
                    nbresults = self.__unique = self._cw.execute(rql, {'value' : value})[0][0]
1904
e23536d29231 minor refactoring of absolute_url()
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1842
diff changeset
   471
                if nbresults != 1: # ambiguity?
e23536d29231 minor refactoring of absolute_url()
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1842
diff changeset
   472
                    mainattr = 'eid'
e23536d29231 minor refactoring of absolute_url()
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1842
diff changeset
   473
                    path += '/eid'
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
        if mainattr == 'eid':
1840
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   475
            if use_ext_eid:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   476
                value = self.cw_metainformation()['extid']
1840
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   477
            else:
f4b5c15d1147 test and fix #342997: local eid used for absolute_url of external entities
sylvain.thenault@logilab.fr
parents: 1804
diff changeset
   478
                value = self.eid
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   479
        return '%s/%s' % (path, self._cw.url_quote(value))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   480
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   481
    def cw_attr_metadata(self, attr, metadata):
1101
0c067de38e46 unification of meta-attributes handling:
sylvain.thenault@logilab.fr
parents: 1098
diff changeset
   482
        """return a metadata for an attribute (None if unspecified)"""
0c067de38e46 unification of meta-attributes handling:
sylvain.thenault@logilab.fr
parents: 1098
diff changeset
   483
        value = getattr(self, '%s_%s' % (attr, metadata), None)
0c067de38e46 unification of meta-attributes handling:
sylvain.thenault@logilab.fr
parents: 1098
diff changeset
   484
        if value is None and metadata == 'encoding':
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   485
            value = self._cw.vreg.property_value('ui.encoding')
1101
0c067de38e46 unification of meta-attributes handling:
sylvain.thenault@logilab.fr
parents: 1098
diff changeset
   486
        return value
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   487
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   488
    def printable_value(self, attr, value=_marker, attrtype=None,
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   489
                        format='text/html', displaytime=True): # XXX cw_printable_value
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   490
        """return a displayable value (i.e. unicode string) which may contains
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   491
        html tags
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   492
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   493
        attr = str(attr)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   494
        if value is _marker:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   495
            value = getattr(self, attr)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   496
        if isinstance(value, basestring):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   497
            value = value.strip()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   498
        if value is None or value == '': # don't use "not", 0 is an acceptable value
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   499
            return u''
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   500
        if attrtype is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   501
            attrtype = self.e_schema.destination(attr)
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   502
        props = self.e_schema.rdef(attr)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   503
        if attrtype == 'String':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   504
            # internalinalized *and* formatted string such as schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   505
            # description...
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   506
            if props.internationalizable:
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   507
                value = self._cw._(value)
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   508
            attrformat = self.cw_attr_metadata(attr, 'format')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   509
            if attrformat:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   510
                return self._cw_mtc_transform(value, attrformat, format,
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   511
                                              self._cw.encoding)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   512
        elif attrtype == 'Bytes':
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   513
            attrformat = self.cw_attr_metadata(attr, 'format')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   514
            if attrformat:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   515
                encoding = self.cw_attr_metadata(attr, 'encoding')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   516
                return self._cw_mtc_transform(value.getvalue(), attrformat, format,
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   517
                                              encoding)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   518
            return u''
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   519
        value = printable_value(self._cw, attrtype, value, props,
3212
07d11bacfefe displaytime attribute should not have been removed from there
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3184
diff changeset
   520
                                displaytime=displaytime)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   521
        if format == 'text/html':
2312
af4d8f75c5db use xml_escape
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2125
diff changeset
   522
            value = xml_escape(value)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   523
        return value
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   524
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   525
    def _cw_mtc_transform(self, data, format, target_format, encoding,
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   526
                          _engine=ENGINE):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   527
        trdata = TransformData(data, format, encoding, appobject=self)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   528
        data = _engine.convert(trdata, target_format).decode()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   529
        if format == 'text/html':
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   530
            data = soup2xhtml(data, self._cw.encoding)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   531
        return data
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   532
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   533
    # entity cloning ##########################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   534
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   535
    def copy_relations(self, ceid): # XXX cw_copy_relations
3626
017869a514c3 [doc] updated docstrings
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3552
diff changeset
   536
        """copy relations of the object with the given eid on this
017869a514c3 [doc] updated docstrings
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3552
diff changeset
   537
        object (this method is called on the newly created copy, and
017869a514c3 [doc] updated docstrings
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3552
diff changeset
   538
        ceid designates the original entity).
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   539
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   540
        By default meta and composite relations are skipped.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   541
        Overrides this if you want another behaviour
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   542
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   543
        assert self.has_eid()
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   544
        execute = self._cw.execute
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   545
        for rschema in self.e_schema.subject_relations():
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3683
diff changeset
   546
            if rschema.final or rschema.meta:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   547
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   548
            # skip already defined relations
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   549
            if getattr(self, rschema.type):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   550
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   551
            if rschema.type in self.skip_copy_for:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   552
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   553
            # skip composite relation
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   554
            rdef = self.e_schema.rdef(rschema)
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   555
            if rdef.composite:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   556
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   557
            # skip relation with card in ?1 else we either change the copied
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   558
            # object (inlined relation) or inserting some inconsistency
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   559
            if rdef.cardinality[1] in '?1':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   560
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   561
            rql = 'SET X %s V WHERE X eid %%(x)s, Y eid %%(y)s, Y %s V' % (
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   562
                rschema.type, rschema.type)
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   563
            execute(rql, {'x': self.eid, 'y': ceid})
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   564
            self.cw_clear_relation_cache(rschema.type, 'subject')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   565
        for rschema in self.e_schema.object_relations():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   566
            if rschema.meta:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   567
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   568
            # skip already defined relations
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   569
            if self.related(rschema.type, 'object'):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   570
                continue
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   571
            rdef = self.e_schema.rdef(rschema, 'object')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   572
            # skip composite relation
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   573
            if rdef.composite:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   574
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   575
            # skip relation with card in ?1 else we either change the copied
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   576
            # object (inlined relation) or inserting some inconsistency
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   577
            if rdef.cardinality[0] in '?1':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   578
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   579
            rql = 'SET V %s X WHERE X eid %%(x)s, Y eid %%(y)s, V %s Y' % (
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   580
                rschema.type, rschema.type)
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   581
            execute(rql, {'x': self.eid, 'y': ceid})
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   582
            self.cw_clear_relation_cache(rschema.type, 'object')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   583
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   584
    # data fetching methods ###################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   585
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   586
    @cached
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   587
    def as_rset(self): # XXX .cw_as_rset
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   588
        """returns a resultset containing `self` information"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   589
        rset = ResultSet([(self.eid,)], 'Any X WHERE X eid %(x)s',
3376
f5c69485381f [appobjects] use __regid__ instead of __id__, more explicit
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
   590
                         {'x': self.eid}, [(self.__regid__,)])
4850
bd640b137f50 [refactor] drop rset.vreg attribute, vreg should be accessed through rset.req. Also kill decorate_rset, simply set rset.req where we were calling this method.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4848
diff changeset
   591
        rset.req = self._cw
bd640b137f50 [refactor] drop rset.vreg attribute, vreg should be accessed through rset.req. Also kill decorate_rset, simply set rset.req where we were calling this method.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4848
diff changeset
   592
        return rset
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   593
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   594
    def _cw_to_complete_relations(self):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   595
        """by default complete final relations to when calling .complete()"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   596
        for rschema in self.e_schema.subject_relations():
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3683
diff changeset
   597
            if rschema.final:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   598
                continue
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   599
            targets = rschema.objects(self.e_schema)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   600
            if rschema.inlined:
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   601
                matching_groups = self._cw.user.matching_groups
5797
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   602
                if all(matching_groups(e.get_groups('read')) and
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   603
                       rschema.rdef(self.e_schema, e).get_groups('read')
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   604
                       for e in targets):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   605
                    yield rschema, 'subject'
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   606
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   607
    def _cw_to_complete_attributes(self, skip_bytes=True, skip_pwd=True):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   608
        for rschema, attrschema in self.e_schema.attribute_definitions():
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   609
            # skip binary data by default
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   610
            if skip_bytes and attrschema.type == 'Bytes':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   611
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   612
            attr = rschema.type
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   613
            if attr == 'eid':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   614
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   615
            # password retreival is blocked at the repository server level
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   616
            rdef = rschema.rdef(self.e_schema, attrschema)
3890
d7a270f50f54 backport stable branch (one more time painfully)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3777 3877
diff changeset
   617
            if not self._cw.user.matching_groups(rdef.get_groups('read')) \
4913
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4850
diff changeset
   618
                   or (attrschema.type == 'Password' and skip_pwd):
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   619
                self.cw_attr_cache[attr] = None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   620
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   621
            yield attr
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   622
4408
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   623
    _cw_completed = False
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   624
    def complete(self, attributes=None, skip_bytes=True, skip_pwd=True): # XXX cw_complete
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   625
        """complete this entity by adding missing attributes (i.e. query the
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   626
        repository to fill the entity)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   627
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   628
        :type skip_bytes: bool
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   629
        :param skip_bytes:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   630
          if true, attribute of type Bytes won't be considered
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   631
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   632
        assert self.has_eid()
4408
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   633
        if self._cw_completed:
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   634
            return
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   635
        if attributes is None:
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   636
            self._cw_completed = True
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   637
        varmaker = rqlvar_maker()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   638
        V = varmaker.next()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   639
        rql = ['WHERE %s eid %%(x)s' % V]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   640
        selected = []
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   641
        for attr in (attributes or self._cw_to_complete_attributes(skip_bytes, skip_pwd)):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   642
            # if attribute already in entity, nothing to do
5726
c3b99606644d [json] fix json serialization for recent simplejson implementation, and test encoding of entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5573
diff changeset
   643
            if self.cw_attr_cache.has_key(attr):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   644
                continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   645
            # case where attribute must be completed, but is not yet in entity
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   646
            var = varmaker.next()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   647
            rql.append('%s %s %s' % (V, attr, var))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   648
            selected.append((attr, var))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   649
        # +1 since this doen't include the main variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   650
        lastattr = len(selected) + 1
6124
c5900230809b [ms] when entity is coming from an external source, don't add non final relations on complete
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6100
diff changeset
   651
        # don't fetch extra relation if attributes specified or of the entity is
c5900230809b [ms] when entity is coming from an external source, don't add non final relations on complete
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6100
diff changeset
   652
        # coming from an external source (may lead to error)
c5900230809b [ms] when entity is coming from an external source, don't add non final relations on complete
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6100
diff changeset
   653
        if attributes is None and self.cw_metainformation()['source']['uri'] == 'system':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   654
            # fetch additional relations (restricted to 0..1 relations)
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   655
            for rschema, role in self._cw_to_complete_relations():
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   656
                rtype = rschema.type
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   657
                if self.cw_relation_cached(rtype, role):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   658
                    continue
5797
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   659
                # at this point we suppose that:
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   660
                # * this is a inlined relation
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   661
                # * entity (self) is the subject
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   662
                # * user has read perm on the relation and on the target entity
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   663
                assert rschema.inlined
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   664
                assert role == 'subject'
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   665
                var = varmaker.next()
5797
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   666
                # keep outer join anyway, we don't want .complete to crash on
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   667
                # missing mandatory relation (see #1058267)
7183f32fad13 [entity] fix .complete so we don't crash on missing mandatory relation. Also simplify code. Closes #1058267
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5762
diff changeset
   668
                rql.append('%s %s %s?' % (V, rtype, var))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   669
                selected.append(((rtype, role), var))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   670
        if selected:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   671
            # select V, we need it as the left most selected variable
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   672
            # if some outer join are included to fetch inlined relations
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   673
            rql = 'Any %s,%s %s' % (V, ','.join(var for attr, var in selected),
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   674
                                    ','.join(rql))
6656
bea4ab297e67 [ms entity] proper error on external entity fetch error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6499
diff changeset
   675
            try:
bea4ab297e67 [ms entity] proper error on external entity fetch error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6499
diff changeset
   676
                rset = self._cw.execute(rql, {'x': self.eid}, build_descr=False)[0]
bea4ab297e67 [ms entity] proper error on external entity fetch error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6499
diff changeset
   677
            except IndexError:
bea4ab297e67 [ms entity] proper error on external entity fetch error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6499
diff changeset
   678
                raise Exception('unable to fetch attributes for entity with eid %s'
bea4ab297e67 [ms entity] proper error on external entity fetch error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6499
diff changeset
   679
                                % self.eid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   680
            # handle attributes
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   681
            for i in xrange(1, lastattr):
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   682
                self.cw_attr_cache[str(selected[i-1][0])] = rset[i]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   683
            # handle relations
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   684
            for i in xrange(lastattr, len(rset)):
2941
196493bd099c [entity] use role instead of x
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2931
diff changeset
   685
                rtype, role = selected[i-1][0]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   686
                value = rset[i]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   687
                if value is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   688
                    rrset = ResultSet([], rql, {'x': self.eid})
4850
bd640b137f50 [refactor] drop rset.vreg attribute, vreg should be accessed through rset.req. Also kill decorate_rset, simply set rset.req where we were calling this method.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4848
diff changeset
   689
                    rrset.req = self._cw
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   690
                else:
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   691
                    rrset = self._cw.eid_rset(value)
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   692
                self.cw_set_relation_cache(rtype, role, rrset)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   693
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   694
    def cw_attr_value(self, name):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   695
        """get value for the attribute relation <name>, query the repository
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   696
        to get the value if necessary.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   697
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   698
        :type name: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   699
        :param name: name of the attribute to get
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   700
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   701
        try:
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   702
            return self.cw_attr_cache[name]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   703
        except KeyError:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   704
            if not self.cw_is_saved():
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   705
                return None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   706
            rql = "Any A WHERE X eid %%(x)s, X %s A" % name
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   707
            try:
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   708
                rset = self._cw.execute(rql, {'x': self.eid})
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   709
            except Unauthorized:
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   710
                self.cw_attr_cache[name] = value = None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   711
            else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   712
                assert rset.rowcount <= 1, (self, rql, rset.rowcount)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   713
                try:
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   714
                    self.cw_attr_cache[name] = value = rset.rows[0][0]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   715
                except IndexError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   716
                    # probably a multisource error
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   717
                    self.critical("can't get value for attribute %s of entity with eid %s",
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   718
                                  name, self.eid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   719
                    if self.e_schema.destination(name) == 'String':
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   720
                        self.cw_attr_cache[name] = value = self._cw._('unaccessible')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   721
                    else:
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   722
                        self.cw_attr_cache[name] = value = None
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   723
            return value
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   724
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   725
    def related(self, rtype, role='subject', limit=None, entities=False): # XXX .cw_related
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   726
        """returns a resultset of related entities
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   727
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   728
        :param role: is the role played by 'self' in the relation ('subject' or 'object')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   729
        :param limit: resultset's maximum size
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   730
        :param entities: if True, the entites are returned; if False, a result set is returned
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   731
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   732
        try:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   733
            return self._cw_relation_cache(rtype, role, entities, limit)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   734
        except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   735
            pass
5757
e501806ab489 [entity] when .related() is called on a not-yet-saved entity, return an empty rset/list instead of raising an assertion error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5733
diff changeset
   736
        if not self.has_eid():
e501806ab489 [entity] when .related() is called on a not-yet-saved entity, return an empty rset/list instead of raising an assertion error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5733
diff changeset
   737
            if entities:
e501806ab489 [entity] when .related() is called on a not-yet-saved entity, return an empty rset/list instead of raising an assertion error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5733
diff changeset
   738
                return []
6807
7330d1fa02dd [cleanup] pylint detected error (among a ton of false positives due to the dynamic nature of cubicweb's code...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6792
diff changeset
   739
            return self._cw.empty_rset()
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   740
        rql = self.cw_related_rql(rtype, role)
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   741
        rset = self._cw.execute(rql, {'x': self.eid})
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   742
        self.cw_set_relation_cache(rtype, role, rset)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   743
        return self.related(rtype, role, limit, entities)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   744
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   745
    def cw_related_rql(self, rtype, role='subject', targettypes=None):
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   746
        rschema = self._cw.vreg.schema[rtype]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   747
        if role == 'subject':
3672
554a588ffaea [entity] make related_rql honors its targettypes argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3671
diff changeset
   748
            restriction = 'E eid %%(x)s, E %s X' % rtype
3130
2486163c4630 allow to specify targettypes in related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3047
diff changeset
   749
            if targettypes is None:
2486163c4630 allow to specify targettypes in related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3047
diff changeset
   750
                targettypes = rschema.objects(self.e_schema)
3672
554a588ffaea [entity] make related_rql honors its targettypes argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3671
diff changeset
   751
            else:
3683
2e4794c97cf4 fix related_rql when target_type specified
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3680
diff changeset
   752
                restriction += ', X is IN (%s)' % ','.join(targettypes)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   753
            card = greater_card(rschema, (self.e_schema,), targettypes, 0)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   754
        else:
3672
554a588ffaea [entity] make related_rql honors its targettypes argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3671
diff changeset
   755
            restriction = 'E eid %%(x)s, X %s E' % rtype
3130
2486163c4630 allow to specify targettypes in related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3047
diff changeset
   756
            if targettypes is None:
2486163c4630 allow to specify targettypes in related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3047
diff changeset
   757
                targettypes = rschema.subjects(self.e_schema)
3672
554a588ffaea [entity] make related_rql honors its targettypes argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3671
diff changeset
   758
            else:
3683
2e4794c97cf4 fix related_rql when target_type specified
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3680
diff changeset
   759
                restriction += ', X is IN (%s)' % ','.join(targettypes)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   760
            card = greater_card(rschema, targettypes, (self.e_schema,), 1)
7302
c281afe35b8b [entity] fix entity fetch_rql when fetch_attrs contains a rtype with multiple destination etypes which do not have the same fetched attributes themselves (closes #1631282)
Florent Cayré <florent.cayre@gmail.com>
parents: 7288
diff changeset
   761
        etypecls = self._cw.vreg['etypes'].etype_class(targettypes[0])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   762
        if len(targettypes) > 1:
7302
c281afe35b8b [entity] fix entity fetch_rql when fetch_attrs contains a rtype with multiple destination etypes which do not have the same fetched attributes themselves (closes #1631282)
Florent Cayré <florent.cayre@gmail.com>
parents: 7288
diff changeset
   763
            fetchattrs = self._cw.vreg['etypes'].fetch_attrs(targettypes)
7425
7e9d1d6fcba7 [entity fetch_attrs] remove ambiguous relations on different etypes from fetched attrs or it may produce wrong related results; closes #1700896
Florent Cayré <florent.cayre@gmail.com>
parents: 7376
diff changeset
   764
            # XXX we should fetch ambiguous relation objects too but not
7e9d1d6fcba7 [entity fetch_attrs] remove ambiguous relations on different etypes from fetched attrs or it may produce wrong related results; closes #1700896
Florent Cayré <florent.cayre@gmail.com>
parents: 7376
diff changeset
   765
            # recurse on them in _fetch_restrictions; it is easier to remove
7e9d1d6fcba7 [entity fetch_attrs] remove ambiguous relations on different etypes from fetched attrs or it may produce wrong related results; closes #1700896
Florent Cayré <florent.cayre@gmail.com>
parents: 7376
diff changeset
   766
            # them completely for now, as it would require an deeper api rewrite
7e9d1d6fcba7 [entity fetch_attrs] remove ambiguous relations on different etypes from fetched attrs or it may produce wrong related results; closes #1700896
Florent Cayré <florent.cayre@gmail.com>
parents: 7376
diff changeset
   767
            remove_ambiguous_rels(fetchattrs, targettypes, self._cw.vreg.schema)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   768
        else:
7302
c281afe35b8b [entity] fix entity fetch_rql when fetch_attrs contains a rtype with multiple destination etypes which do not have the same fetched attributes themselves (closes #1631282)
Florent Cayré <florent.cayre@gmail.com>
parents: 7288
diff changeset
   769
            fetchattrs = etypecls.fetch_attrs
c281afe35b8b [entity] fix entity fetch_rql when fetch_attrs contains a rtype with multiple destination etypes which do not have the same fetched attributes themselves (closes #1631282)
Florent Cayré <florent.cayre@gmail.com>
parents: 7288
diff changeset
   770
        rql = etypecls.fetch_rql(self._cw.user, [restriction], fetchattrs,
c281afe35b8b [entity] fix entity fetch_rql when fetch_attrs contains a rtype with multiple destination etypes which do not have the same fetched attributes themselves (closes #1631282)
Florent Cayré <florent.cayre@gmail.com>
parents: 7288
diff changeset
   771
                                 settype=False)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   772
        # optimisation: remove ORDERBY if cardinality is 1 or ? (though
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   773
        # greater_card return 1 for those both cases)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   774
        if card == '1':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   775
            if ' ORDERBY ' in rql:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   776
                rql = '%s WHERE %s' % (rql.split(' ORDERBY ', 1)[0],
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   777
                                       rql.split(' WHERE ', 1)[1])
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   778
        elif not ' ORDERBY ' in rql:
4630
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   779
            args = rql.split(' WHERE ', 1)
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   780
            # if modification_date already retreived, we should use it instead
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   781
            # of adding another variable for sort. This should be be problematic
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   782
            # but it's actually with sqlserver, see ticket #694445
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   783
            if 'X modification_date ' in args[1]:
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   784
                var = args[1].split('X modification_date ', 1)[1].split(',', 1)[0]
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   785
                args.insert(1, var.strip())
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   786
                rql = '%s ORDERBY %s DESC WHERE %s' % tuple(args)
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   787
            else:
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   788
                rql = '%s ORDERBY Z DESC WHERE X modification_date Z, %s' % \
528dee042927 fix #694445: related entity generates weird RQL which in turn generates weird SQL which fails on SQL Server
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4460
diff changeset
   789
                      tuple(args)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   790
        return rql
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   791
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   792
    # generic vocabulary methods ##############################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   793
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   794
    def cw_unrelated_rql(self, rtype, targettype, role, ordermethod=None,
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   795
                         vocabconstraints=True):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   796
        """build a rql to fetch `targettype` entities unrelated to this entity
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   797
        using (rtype, role) relation.
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   798
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   799
        Consider relation permissions so that returned entities may be actually
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   800
        linked by `rtype`.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   801
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   802
        ordermethod = ordermethod or 'fetch_unrelated_order'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   803
        if isinstance(rtype, basestring):
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   804
            rtype = self._cw.vreg.schema.rschema(rtype)
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   805
        rdef = rtype.role_rdef(self.e_schema, targettype, role)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   806
        rewriter = RQLRewriter(self._cw)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   807
        # initialize some variables according to the `role` of `self` in the
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   808
        # relation:
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   809
        # * variable for myself (`evar`) and searched entities (`searchvedvar`)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   810
        # * entity type of the subject (`subjtype`) and of the object
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   811
        #   (`objtype`) of the relation
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   812
        if role == 'subject':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   813
            evar, searchedvar = 'S', 'O'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   814
            subjtype, objtype = self.e_schema, targettype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   815
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   816
            searchedvar, evar = 'S', 'O'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   817
            objtype, subjtype = self.e_schema, targettype
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   818
        # initialize some variables according to `self` existance
7177
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   819
        if rdef.role_cardinality(neg_role(role)) in '?1':
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   820
            # if cardinality in '1?', we want a target entity which isn't
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   821
            # already linked using this relation
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   822
            if searchedvar == 'S':
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   823
                restriction = ['NOT S %s ZZ' % rtype]
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   824
            else:
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   825
                restriction = ['NOT ZZ %s O' % rtype]
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   826
        elif self.has_eid():
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   827
            # elif we have an eid, we don't want a target entity which is
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   828
            # already linked to ourself through this relation
7153
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   829
            restriction = ['NOT S %s O' % rtype]
7177
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   830
        else:
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   831
            restriction = []
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   832
        if self.has_eid():
7177
0f2905cbe443 [entity vocab] fix bug introduced in 3.12 vs/ entity vocabulary, leading to some unexpected empty vocabulary. Fix test accordingly.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7154
diff changeset
   833
            restriction += ['%s eid %%(x)s' % evar]
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   834
            args = {'x': self.eid}
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   835
            if role == 'subject':
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   836
                sec_check_args = {'fromeid': self.eid}
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   837
            else:
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   838
                sec_check_args = {'toeid': self.eid}
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   839
            existant = None # instead of 'SO', improve perfs
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   840
        else:
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   841
            args = {}
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   842
            sec_check_args = {}
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   843
            existant = searchedvar
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   844
        # retreive entity class for targettype to compute base rql
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   845
        etypecls = self._cw.vreg['etypes'].etype_class(targettype)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   846
        rql = etypecls.fetch_rql(self._cw.user, restriction,
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   847
                                 mainvar=searchedvar, ordermethod=ordermethod)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   848
        select = self._cw.vreg.parse(self._cw, rql, args).children[0]
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   849
        # insert RQL expressions for schema constraints into the rql syntax tree
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   850
        if vocabconstraints:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   851
            # RQLConstraint is a subclass for RQLVocabularyConstraint, so they
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   852
            # will be included as well
7153
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   853
            cstrcls = RQLVocabularyConstraint
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   854
        else:
7153
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   855
            cstrcls = RQLConstraint
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   856
        for cstr in rdef.constraints:
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   857
            # consider constraint.mainvars to check if constraint apply
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   858
            if isinstance(cstr, cstrcls) and searchedvar in cstr.mainvars:
7153
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   859
                if not self.has_eid() and evar in cstr.mainvars:
7df83a6d17c0 [entity vocabulary] fix unrelated rql generation to skip rql constraints that don't make sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7152
diff changeset
   860
                    continue
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   861
                # compute a varmap suitable to RQLRewriter.rewrite argument
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   862
                varmap = dict((v, v) for v in 'SO' if v in select.defined_vars
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   863
                              and v in cstr.mainvars)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   864
                # rewrite constraint by constraint since we want a AND between
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   865
                # expressions.
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   866
                rewriter.rewrite(select, [(varmap, (cstr,))], select.solutions,
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   867
                                 args, existant)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   868
        # insert security RQL expressions granting the permission to 'add' the
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   869
        # relation into the rql syntax tree, if necessary
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   870
        rqlexprs = rdef.get_rqlexprs('add')
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   871
        if rqlexprs and not rdef.has_perm(self._cw, 'add', **sec_check_args):
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   872
            # compute a varmap suitable to RQLRewriter.rewrite argument
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   873
            varmap = dict((v, v) for v in 'SO' if v in select.defined_vars)
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   874
            # rewrite all expressions at once since we want a OR between them.
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   875
            rewriter.rewrite(select, [(varmap, rqlexprs)], select.solutions,
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   876
                             args, existant)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   877
        # ensure we have an order defined
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   878
        if not select.orderby:
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   879
            select.add_sort_var(select.defined_vars[searchedvar])
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   880
        # we're done, turn the rql syntax tree as a string
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   881
        rql = select.as_string()
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   882
        return rql, args
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   883
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   884
    def unrelated(self, rtype, targettype, role='subject', limit=None,
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   885
                  ordermethod=None): # XXX .cw_unrelated
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   886
        """return a result set of target type objects that may be related
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   887
        by a given relation, with self as subject or object
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   888
        """
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   889
        try:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   890
            rql, args = self.cw_unrelated_rql(rtype, targettype, role, ordermethod)
3241
1a6f7a0e7dbd unrelated_rql now considers relation's add perm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3212
diff changeset
   891
        except Unauthorized:
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   892
            return self._cw.empty_rset()
7154
5e2f93b88d86 [entity vocabulary] refactor unrelated rql to allow usage of RQLRewriter to insert schema constraints. Closes #1561806
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7153
diff changeset
   893
        # XXX should be set in unrelated rql when manipulating the AST
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   894
        if limit is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   895
            before, after = rql.split(' WHERE ', 1)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   896
            rql = '%s LIMIT %s WHERE %s' % (before, limit, after)
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   897
        return self._cw.execute(rql, args)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   898
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   899
    # relations cache handling #################################################
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   900
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   901
    def cw_relation_cached(self, rtype, role):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   902
        """return None if the given relation isn't already cached on the
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   903
        instance, else the content of the cache (a 2-uple (rset, entities)).
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   904
        """
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   905
        return self._cw_related_cache.get('%s_%s' % (rtype, role))
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   906
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   907
    def _cw_relation_cache(self, rtype, role, entities=True, limit=None):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   908
        """return values for the given relation if it's cached on the instance,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   909
        else raise `KeyError`
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   910
        """
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   911
        res = self._cw_related_cache['%s_%s' % (rtype, role)][entities]
3680
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3679
diff changeset
   912
        if limit is not None and limit < len(res):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   913
            if entities:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   914
                res = res[:limit]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   915
            else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   916
                res = res.limit(limit)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   917
        return res
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   918
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   919
    def cw_set_relation_cache(self, rtype, role, rset):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   920
        """set cached values for the given relation"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   921
        if rset:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   922
            related = list(rset.entities(0))
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
   923
            rschema = self._cw.vreg.schema.rschema(rtype)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   924
            if role == 'subject':
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   925
                rcard = rschema.rdef(self.e_schema, related[0].e_schema).cardinality[1]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   926
                target = 'object'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   927
            else:
3877
7ca53fc72a0a reldefsecurity branch :
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3826
diff changeset
   928
                rcard = rschema.rdef(related[0].e_schema, self.e_schema).cardinality[0]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   929
                target = 'subject'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   930
            if rcard in '?1':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   931
                for rentity in related:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   932
                    rentity._cw_related_cache['%s_%s' % (rtype, target)] = (
3552
8facb3324170 [entity] put cached related entities as tuple to be sure no one is modifying
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3546
diff changeset
   933
                        self.as_rset(), (self,))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   934
        else:
3552
8facb3324170 [entity] put cached related entities as tuple to be sure no one is modifying
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3546
diff changeset
   935
            related = ()
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   936
        self._cw_related_cache['%s_%s' % (rtype, role)] = (rset, related)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   937
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   938
    def cw_clear_relation_cache(self, rtype=None, role=None):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   939
        """clear cached values for the given relation or the entire cache if
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   940
        no relation is given
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   941
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   942
        if rtype is None:
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   943
            self._cw_related_cache = {}
5573
8dfb1726526b [entity] clearing adapters cache in clear_relations_cache avoid weird caching issue, notably on repository session's user
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5559
diff changeset
   944
            self._cw_adapters_cache = {}
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   945
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   946
            assert role
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   947
            self._cw_related_cache.pop('%s_%s' % (rtype, role), None)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   948
7293
97505b798975 [entity 3.13 api] rename clear_all_caches into cw_clear_all_cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7246
diff changeset
   949
    def cw_clear_all_caches(self):
4408
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   950
        """flush all caches on this entity. Further attributes/relations access
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   951
        will triggers new database queries to get back values.
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   952
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   953
        If you use custom caches on your entity class (take care to @cached!),
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   954
        you should override this method to clear them as well.
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   955
        """
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   956
        # clear attributes cache
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   957
        self._cw_completed = False
5726
c3b99606644d [json] fix json serialization for recent simplejson implementation, and test encoding of entities
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5573
diff changeset
   958
        self.cw_attr_cache.clear()
4408
899b426087ab [entity] small optimization: once an entity has been completed, don't redo it (for nothing)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4406
diff changeset
   959
        # clear relations cache
5573
8dfb1726526b [entity] clearing adapters cache in clear_relations_cache avoid weird caching issue, notably on repository session's user
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5559
diff changeset
   960
        self.cw_clear_relation_cache()
4460
5c22869079b9 clear rest_path __unique cache in clear_all_caches, fix related test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4451
diff changeset
   961
        # rest path unique cache
5c22869079b9 clear rest_path __unique cache in clear_all_caches, fix related test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4451
diff changeset
   962
        try:
5c22869079b9 clear rest_path __unique cache in clear_all_caches, fix related test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4451
diff changeset
   963
            del self.__unique
5c22869079b9 clear rest_path __unique cache in clear_all_caches, fix related test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4451
diff changeset
   964
        except AttributeError:
5c22869079b9 clear rest_path __unique cache in clear_all_caches, fix related test
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4451
diff changeset
   965
            pass
4759
af2e6c377c71 cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4719
diff changeset
   966
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   967
    # raw edition utilities ###################################################
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   968
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   969
    def set_attributes(self, **kwargs): # XXX cw_set_attributes
5115
2e43ef618d14 [repository] forbid usage of set_attributes() in before_add_entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5009
diff changeset
   970
        _check_cw_unsafe(kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   971
        assert kwargs
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   972
        assert self.cw_is_saved(), "should not call set_attributes while entity "\
5127
3c2dda44e2f6 [entity] explain why the assert failed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5115
diff changeset
   973
               "hasn't been saved yet"
7210
29cd85f20ccb [entity] use a list comprehension
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7200
diff changeset
   974
        relations = ['X %s %%(%s)s' % (key, key) for key in kwargs]
397
cf577e26f924 don't introduce a spurious 'x' key in the entity-as dict
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 237
diff changeset
   975
        # and now update the database
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   976
        kwargs['x'] = self.eid
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: 4831
diff changeset
   977
        self._cw.execute('SET %s WHERE X eid %%(x)s' % ','.join(relations),
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
   978
                         kwargs)
5115
2e43ef618d14 [repository] forbid usage of set_attributes() in before_add_entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5009
diff changeset
   979
        kwargs.pop('x')
2e43ef618d14 [repository] forbid usage of set_attributes() in before_add_entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5009
diff changeset
   980
        # update current local object _after_ the rql query to avoid
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   981
        # interferences between the query execution itself and the cw_edited /
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   982
        # skip_security machinery
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
   983
        self.cw_attr_cache.update(kwargs)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
   984
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   985
    def set_relations(self, **kwargs): # XXX cw_set_relations
3955
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
   986
        """add relations to the given object. To set a relation where this entity
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
   987
        is the object of the relation, use 'reverse_'<relation> as argument name.
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
   988
7308
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
   989
        Values may be an entity or eid, a list of entities or eids, or None
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
   990
        (meaning that all relations of the given type from or to this object
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
   991
        should be deleted).
3955
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
   992
        """
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
   993
        # XXX update cache
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: 4831
diff changeset
   994
        _check_cw_unsafe(kwargs)
3671
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
   995
        for attr, values in kwargs.iteritems():
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
   996
            if attr.startswith('reverse_'):
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
   997
                restr = 'Y %s X' % attr[len('reverse_'):]
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
   998
            else:
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
   999
                restr = 'X %s Y' % attr
3955
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
  1000
            if values is None:
4991
16f0cec3d008 [entity] fix dumb name error on .set_relations(rel=None)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4990
diff changeset
  1001
                self._cw.execute('DELETE %s WHERE X eid %%(x)s' % restr,
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5144
diff changeset
  1002
                                 {'x': self.eid})
3955
235a9fda6058 support x.set_relations(a_relation=None) to delete a_relation relations from this entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3919
diff changeset
  1003
                continue
3746
74192424b2c8 accepts single values as create_entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3689
diff changeset
  1004
            if not isinstance(values, (tuple, list, set, frozenset)):
74192424b2c8 accepts single values as create_entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3689
diff changeset
  1005
                values = (values,)
7308
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1006
            eids = []
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1007
            for val in values:
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1008
                try:
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1009
                    eids.append(str(val.eid))
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1010
                except AttributeError:
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1011
                    try:
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1012
                        eids.append(str(typed_eid(val)))
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1013
                    except (ValueError, TypeError):
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1014
                        raise Exception('expected an Entity or eid, got %s' % val)
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: 4831
diff changeset
  1015
            self._cw.execute('SET %s WHERE X eid %%(x)s, Y eid IN (%s)' % (
7308
ff8d6ae076c4 [entity] make set_relations() accept entities and eids (closes #1631391)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 7302
diff changeset
  1016
                    restr, ','.join(eids)), {'x': self.eid})
3671
c765adac7f5c new set_relations method on entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3665
diff changeset
  1017
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1018
    def cw_delete(self, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1019
        assert self.has_eid(), self.eid
3378
2f25f701301d use ._cw instead of req on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3376
diff changeset
  1020
        self._cw.execute('DELETE %s X WHERE X eid %%(x)s' % self.e_schema,
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: 4831
diff changeset
  1021
                         {'x': self.eid}, **kwargs)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
  1022
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1023
    # server side utilities ####################################################
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1024
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1025
    def _cw_clear_local_perm_cache(self, action):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1026
        for rqlexpr in self.e_schema.get_rqlexprs(action):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1027
            self._cw.local_perm_cache.pop((rqlexpr.eid, (('x', self.eid),)), None)
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1028
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1029
    # deprecated stuff #########################################################
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1030
7293
97505b798975 [entity 3.13 api] rename clear_all_caches into cw_clear_all_cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7246
diff changeset
  1031
    @deprecated('[3.13] use entity.cw_clear_all_caches()')
97505b798975 [entity 3.13 api] rename clear_all_caches into cw_clear_all_cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7246
diff changeset
  1032
    def clear_all_caches(self):
97505b798975 [entity 3.13 api] rename clear_all_caches into cw_clear_all_cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7246
diff changeset
  1033
        return self.cw_clear_all_caches()
97505b798975 [entity 3.13 api] rename clear_all_caches into cw_clear_all_cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7246
diff changeset
  1034
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1035
    @deprecated('[3.9] use entity.cw_attr_value(attr)')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1036
    def get_value(self, name):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1037
        return self.cw_attr_value(name)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
  1038
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1039
    @deprecated('[3.9] use entity.cw_delete()')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1040
    def delete(self, **kwargs):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1041
        return self.cw_delete(**kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1042
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1043
    @deprecated('[3.9] use entity.cw_attr_metadata(attr, metadata)')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1044
    def attr_metadata(self, attr, metadata):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1045
        return self.cw_attr_metadata(attr, metadata)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
  1046
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1047
    @deprecated('[3.9] use entity.cw_has_perm(action)')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1048
    def has_perm(self, action):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1049
        return self.cw_has_perm(action)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1050
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1051
    @deprecated('[3.9] use entity.cw_set_relation_cache(rtype, role, rset)')
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1052
    def set_related_cache(self, rtype, role, rset):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1053
        self.cw_set_relation_cache(rtype, role, rset)
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1054
6812
a637f961665d typo in deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6807
diff changeset
  1055
    @deprecated('[3.9] use entity.cw_clear_relation_cache(rtype, role)')
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1056
    def clear_related_cache(self, rtype=None, role=None):
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1057
        self.cw_clear_relation_cache(rtype, role)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1058
5870
d3ec7c4bb373 restore bw compat on Entity.related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5797
diff changeset
  1059
    @deprecated('[3.9] use entity.cw_related_rql(rtype, [role, [targettypes]])')
d3ec7c4bb373 restore bw compat on Entity.related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5797
diff changeset
  1060
    def related_rql(self, rtype, role='subject', targettypes=None):
d3ec7c4bb373 restore bw compat on Entity.related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5797
diff changeset
  1061
        return self.cw_related_rql(rtype, role, targettypes)
d3ec7c4bb373 restore bw compat on Entity.related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5797
diff changeset
  1062
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1063
    @property
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1064
    @deprecated('[3.10] use entity.cw_edited')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1065
    def edited_attributes(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1066
        return self.cw_edited
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1067
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1068
    @property
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1069
    @deprecated('[3.10] use entity.cw_edited.skip_security')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1070
    def skip_security_attributes(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1071
        return self.cw_edited.skip_security
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1072
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1073
    @property
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1074
    @deprecated('[3.10] use entity.cw_edited.skip_security')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1075
    def _cw_skip_security_attributes(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1076
        return self.cw_edited.skip_security
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1077
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1078
    @property
6792
8834d9d91b66 [deprecation] fix bad warning on entity.querier_pending_relations
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6656
diff changeset
  1079
    @deprecated('[3.10] use entity.cw_edited.querier_pending_relations')
6142
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1080
    def querier_pending_relations(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1081
        return self.cw_edited.querier_pending_relations
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1082
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1083
    @deprecated('[3.10] use key in entity.cw_attr_cache')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1084
    def __contains__(self, key):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1085
        return key in self.cw_attr_cache
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1086
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1087
    @deprecated('[3.10] iter on entity.cw_attr_cache')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1088
    def __iter__(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1089
        return iter(self.cw_attr_cache)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1090
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1091
    @deprecated('[3.10] use entity.cw_attr_cache[attr]')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1092
    def __getitem__(self, key):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1093
        if key == 'eid':
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1094
            warn('[3.7] entity["eid"] is deprecated, use entity.eid instead',
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1095
                 DeprecationWarning, stacklevel=2)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1096
            return self.eid
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1097
        return self.cw_attr_cache[key]
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1098
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1099
    @deprecated('[3.10] use entity.cw_attr_cache.get(attr[, default])')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1100
    def get(self, key, default=None):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1101
        return self.cw_attr_cache.get(key, default)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1102
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1103
    @deprecated('[3.10] use entity.cw_attr_cache.clear()')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1104
    def clear(self):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1105
        self.cw_attr_cache.clear()
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1106
        # XXX clear cw_edited ?
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1107
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1108
    @deprecated('[3.10] use entity.cw_edited[attr] = value or entity.cw_attr_cache[attr] = value')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1109
    def __setitem__(self, attr, value):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1110
        """override __setitem__ to update self.cw_edited.
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1111
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1112
        Typically, a before_[update|add]_hook could do::
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1113
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1114
            entity['generated_attr'] = generated_value
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1115
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1116
        and this way, cw_edited will be updated accordingly. Also, add
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1117
        the attribute to skip_security since we don't want to check security
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1118
        for such attributes set by hooks.
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1119
        """
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1120
        if attr == 'eid':
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1121
            warn('[3.7] entity["eid"] = value is deprecated, use entity.eid = value instead',
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1122
                 DeprecationWarning, stacklevel=2)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1123
            self.eid = value
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1124
        else:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1125
            try:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1126
                self.cw_edited[attr] = value
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1127
            except AttributeError:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1128
                self.cw_attr_cache[attr] = value
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1129
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1130
    @deprecated('[3.10] use del entity.cw_edited[attr]')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1131
    def __delitem__(self, attr):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1132
        """override __delitem__ to update self.cw_edited on cleanup of
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1133
        undesired changes introduced in the entity's dict. For example, see the
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1134
        code snippet below from the `forge` cube:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1135
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1136
        .. sourcecode:: python
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1137
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1138
            edited = self.entity.cw_edited
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1139
            has_load_left = 'load_left' in edited
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1140
            if 'load' in edited and self.entity.load_left is None:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1141
                self.entity.load_left = self.entity['load']
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1142
            elif not has_load_left and edited:
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1143
                # cleanup, this may cause undesired changes
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1144
                del self.entity['load_left']
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1145
        """
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1146
        del self.cw_edited[attr]
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1147
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1148
    @deprecated('[3.10] use entity.cw_edited.setdefault(attr, default)')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1149
    def setdefault(self, attr, default):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1150
        """override setdefault to update self.cw_edited"""
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1151
        return self.cw_edited.setdefault(attr, default)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1152
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1153
    @deprecated('[3.10] use entity.cw_edited.pop(attr[, default])')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1154
    def pop(self, attr, *args):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1155
        """override pop to update self.cw_edited on cleanup of
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1156
        undesired changes introduced in the entity's dict. See `__delitem__`
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1157
        """
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1158
        return self.cw_edited.pop(attr, *args)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1159
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1160
    @deprecated('[3.10] use entity.cw_edited.update(values)')
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1161
    def update(self, values):
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1162
        """override update to update self.cw_edited. See `__setitem__`
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1163
        """
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1164
        self.cw_edited.update(values)
8bc6eac1fac1 [session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6124
diff changeset
  1165
5870
d3ec7c4bb373 restore bw compat on Entity.related_rql
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5797
diff changeset
  1166
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1167
# attribute and relation descriptors ##########################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1168
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1169
class Attribute(object):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1170
    """descriptor that controls schema attribute access"""
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
    def __init__(self, attrname):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1173
        assert attrname != 'eid'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1174
        self._attrname = attrname
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1175
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1176
    def __get__(self, eobj, eclass):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1177
        if eobj is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1178
            return self
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
  1179
        return eobj.cw_attr_value(self._attrname)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1180
6499
c4123c741c66 [deprecation] enhanced messages
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6498
diff changeset
  1181
    @deprecated('[3.10] assign to entity.cw_attr_cache[attr] or entity.cw_edited[attr]')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1182
    def __set__(self, eobj, value):
6498
0ad62d6b6f8e [bw compat] fix compat for entity.attr assigment
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6467
diff changeset
  1183
        if hasattr(eobj, 'cw_edited') and not eobj.cw_edited.saved:
0ad62d6b6f8e [bw compat] fix compat for entity.attr assigment
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6467
diff changeset
  1184
            eobj.cw_edited[self._attrname] = value
0ad62d6b6f8e [bw compat] fix compat for entity.attr assigment
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6467
diff changeset
  1185
        else:
0ad62d6b6f8e [bw compat] fix compat for entity.attr assigment
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6467
diff changeset
  1186
            eobj.cw_attr_cache[self._attrname] = value
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1187
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
  1188
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1189
class Relation(object):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1190
    """descriptor that controls schema relation access"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1191
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
  1192
    def __init__(self, rschema, role):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1193
        self._rtype = rschema.type
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5522
diff changeset
  1194
        self._role = role
0
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
    def __get__(self, eobj, eclass):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1197
        if eobj is None:
6419
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6317
diff changeset
  1198
            raise AttributeError('%s can only be accessed from instances'
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1199
                                 % self._rtype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1200
        return eobj.related(self._rtype, self._role, entities=True)
1474
716f0742ee7f delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1471
diff changeset
  1201
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1202
    def __set__(self, eobj, value):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1203
        raise NotImplementedError
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1204
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1205
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1206
from logging import getLogger
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1207
from cubicweb import set_log_methods
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
  1208
set_log_methods(Entity, getLogger('cubicweb.entity'))