author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Fri, 04 Jun 2010 15:45:54 +0200 | |
branch | stable |
changeset 5671 | 3a2063b752f3 |
parent 5426 | 0d4853a6e5ee |
child 5556 | 9ab2b4c74baf |
permissions | -rw-r--r-- |
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# copyright 2003-2010 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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"""schema definition related entities |
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""" |
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__docformat__ = "restructuredtext en" |
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from logilab.common.decorators import cached |
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from yams.schema import role_name |
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from cubicweb import ValidationError |
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from cubicweb.schema import ERQLExpression, RRQLExpression |
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from cubicweb.entities import AnyEntity, fetch_config |
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class CWEType(AnyEntity): |
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__regid__ = 'CWEType' |
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fetch_attrs, fetch_order = fetch_config(['name']) |
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def dc_title(self): |
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return u'%s (%s)' % (self.name, self._cw._(self.name)) |
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def dc_long_title(self): |
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stereotypes = [] |
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_ = self._cw._ |
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if self.final: |
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stereotypes.append(_('final')) |
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if stereotypes: |
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return u'%s <<%s>>' % (self.dc_title(), ', '.join(stereotypes)) |
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return self.dc_title() |
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def db_key_name(self): |
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"""XXX goa specific""" |
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return self.get('name') |
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class CWRType(AnyEntity): |
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__regid__ = 'CWRType' |
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fetch_attrs, fetch_order = fetch_config(['name']) |
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def dc_title(self): |
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return u'%s (%s)' % (self.name, self._cw._(self.name)) |
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def dc_long_title(self): |
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stereotypes = [] |
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_ = self._cw._ |
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if self.symmetric: |
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stereotypes.append(_('symmetric')) |
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if self.inlined: |
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stereotypes.append(_('inlined')) |
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if self.final: |
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stereotypes.append(_('final')) |
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if stereotypes: |
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return u'%s <<%s>>' % (self.dc_title(), ', '.join(stereotypes)) |
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return self.dc_title() |
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def check_inlined_allowed(self): |
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"""check inlining is possible, raise ValidationError if not possible |
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""" |
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# don't use the persistent schema, we may miss cardinality changes |
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# in the same transaction |
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for rdef in self.reverse_relation_type: |
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card = rdef.cardinality[0] |
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if not card in '?1': |
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qname = role_name('inlined', 'subject') |
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rtype = self.name |
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stype = rdef.stype |
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otype = rdef.otype |
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msg = self._cw._("can't set inlined=%(inlined)s, " |
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"%(stype)s %(rtype)s %(otype)s " |
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"has cardinality=%(card)s") |
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raise ValidationError(self.eid, {qname: msg % locals()}) |
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def db_key_name(self): |
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"""XXX goa specific""" |
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return self.get('name') |
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class CWRelation(AnyEntity): |
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__regid__ = 'CWRelation' |
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fetch_attrs = fetch_config(['cardinality'])[0] |
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def dc_title(self): |
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return u'%s %s %s' % ( |
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self.from_entity[0].name, |
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self.relation_type[0].name, |
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self.to_entity[0].name) |
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def dc_long_title(self): |
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card = self.cardinality |
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scard, ocard = u'', u'' |
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if card[0] != '1': |
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scard = '[%s]' % card[0] |
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if card[1] != '1': |
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ocard = '[%s]' % card[1] |
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return u'%s %s%s%s %s' % ( |
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self.from_entity[0].name, |
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scard, self.relation_type[0].name, ocard, |
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self.to_entity[0].name) |
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def after_deletion_path(self): |
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"""return (path, parameters) which should be used as redirect |
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information when this entity is being deleted |
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""" |
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if self.relation_type: |
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return self.relation_type[0].rest_path(), {} |
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return super(CWRelation, self).after_deletion_path() |
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@property |
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def rtype(self): |
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return self.relation_type[0] |
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@property |
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def stype(self): |
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return self.from_entity[0] |
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@property |
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def otype(self): |
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return self.to_entity[0] |
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def yams_schema(self): |
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rschema = self._cw.vreg.schema.rschema(self.rtype.name) |
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return rschema.rdefs[(self.stype.name, self.otype.name)] |
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class CWAttribute(CWRelation): |
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__regid__ = 'CWAttribute' |
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def dc_long_title(self): |
146 |
card = self.cardinality |
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scard = u'' |
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if card[0] == '1': |
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scard = '+' |
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return u'%s %s%s %s' % ( |
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self.from_entity[0].name, |
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scard, self.relation_type[0].name, |
0 | 153 |
self.to_entity[0].name) |
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class CWConstraint(AnyEntity): |
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__regid__ = 'CWConstraint' |
0 | 158 |
fetch_attrs, fetch_order = fetch_config(['value']) |
159 |
||
160 |
def dc_title(self): |
|
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return '%s(%s)' % (self.cstrtype[0].name, self.value or u'') |
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|
0 | 163 |
def after_deletion_path(self): |
164 |
"""return (path, parameters) which should be used as redirect |
|
165 |
information when this entity is being deleted |
|
166 |
""" |
|
167 |
if self.reverse_constrained_by: |
|
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return self.reverse_constrained_by[0].rest_path(), {} |
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return super(CWConstraint, self).after_deletion_path() |
0 | 170 |
|
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@property |
|
172 |
def type(self): |
|
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return self.cstrtype[0].name |
|
174 |
||
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|
0 | 176 |
class RQLExpression(AnyEntity): |
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__regid__ = 'RQLExpression' |
0 | 178 |
fetch_attrs, fetch_order = fetch_config(['exprtype', 'mainvars', 'expression']) |
179 |
||
180 |
def dc_title(self): |
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return self.expression or u'' |
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182 |
|
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def dc_long_title(self): |
0 | 184 |
return '%s(%s)' % (self.exprtype, self.expression or u'') |
185 |
||
186 |
@property |
|
187 |
def expression_of(self): |
|
188 |
for rel in ('read_permission', 'add_permission', 'delete_permission', |
|
189 |
'update_permission', 'condition'): |
|
190 |
values = getattr(self, 'reverse_%s' % rel) |
|
191 |
if values: |
|
192 |
return values[0] |
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|
0 | 194 |
@cached |
195 |
def _rqlexpr(self): |
|
196 |
if self.exprtype == 'ERQLExpression': |
|
197 |
return ERQLExpression(self.expression, self.mainvars, self.eid) |
|
198 |
#if self.exprtype == 'RRQLExpression': |
|
199 |
return RRQLExpression(self.expression, self.mainvars, self.eid) |
|
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|
0 | 201 |
def check_expression(self, *args, **kwargs): |
202 |
return self._rqlexpr().check(*args, **kwargs) |
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|
0 | 204 |
def after_deletion_path(self): |
205 |
"""return (path, parameters) which should be used as redirect |
|
206 |
information when this entity is being deleted |
|
207 |
""" |
|
208 |
if self.expression_of: |
|
209 |
return self.expression_of.rest_path(), {} |
|
210 |
return super(RQLExpression, self).after_deletion_path() |
|
211 |
||
212 |
||
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213 |
class CWPermission(AnyEntity): |
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__regid__ = 'CWPermission' |
0 | 215 |
fetch_attrs, fetch_order = fetch_config(['name', 'label']) |
216 |
||
217 |
def dc_title(self): |
|
218 |
if self.label: |
|
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return '%s (%s)' % (self._cw._(self.name), self.label) |
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return self._cw._(self.name) |
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221 |
|
0 | 222 |
def after_deletion_path(self): |
223 |
"""return (path, parameters) which should be used as redirect |
|
224 |
information when this entity is being deleted |
|
225 |
""" |
|
226 |
permissionof = getattr(self, 'reverse_require_permission', ()) |
|
227 |
if len(permissionof) == 1: |
|
228 |
return permissionof[0].rest_path(), {} |
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229 |
return super(CWPermission, self).after_deletion_path() |