author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Mon, 31 Aug 2009 17:38:38 +0200 | |
branch | stable |
changeset 3064 | 3fbcdf220ce9 |
parent 2594 | 92aad5e18405 |
child 3353 | 1003a6f3d298 |
permissions | -rw-r--r-- |
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"""schema definition related entities |
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:organization: Logilab |
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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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 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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id = '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.req._(self.name)) |
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def dc_long_title(self): |
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stereotypes = [] |
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_ = self.req._ |
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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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id = 'CWRType' |
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fetch_attrs, fetch_order = fetch_config(['name']) |
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def dc_title(self): |
1998
12040c090aa4
[views] change schema views: remove view eschema and use tabs for cwetype
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
1977
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return u'%s (%s)' % (self.name, self.req._(self.name)) |
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def dc_long_title(self): |
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stereotypes = [] |
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_ = self.req._ |
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if self.symetric: |
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stereotypes.append(_('symetric')) |
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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 inlined_changed(self, inlined): |
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"""check inlining is necessary and possible: |
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* return False if nothing has changed |
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* raise ValidationError if inlining is'nt possible |
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* eventually return True |
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""" |
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rtype = self.name |
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rschema = self.schema.rschema(rtype) |
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if inlined == rschema.inlined: |
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return False |
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if inlined: |
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for (stype, otype) in rschema.iter_rdefs(): |
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card = rschema.rproperty(stype, otype, 'cardinality')[0] |
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if not card in '?1': |
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msg = self.req._("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, {'inlined': msg % locals()}) |
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return True |
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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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id = '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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class CWAttribute(CWRelation): |
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id = 'CWAttribute' |
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def dc_long_title(self): |
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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, |
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self.to_entity[0].name) |
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class CWConstraint(AnyEntity): |
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id = 'CWConstraint' |
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fetch_attrs, fetch_order = fetch_config(['value']) |
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def dc_title(self): |
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return '%s(%s)' % (self.cstrtype[0].name, self.value or u'') |
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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.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() |
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@property |
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def type(self): |
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return self.cstrtype[0].name |
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class RQLExpression(AnyEntity): |
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id = 'RQLExpression' |
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fetch_attrs, fetch_order = fetch_config(['exprtype', 'mainvars', 'expression']) |
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def dc_title(self): |
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return '%s(%s)' % (self.exprtype, self.expression or u'') |
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@property |
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def expression_of(self): |
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for rel in ('read_permission', 'add_permission', 'delete_permission', |
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'update_permission', 'condition'): |
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values = getattr(self, 'reverse_%s' % rel) |
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if values: |
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return values[0] |
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@cached |
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def _rqlexpr(self): |
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if self.exprtype == 'ERQLExpression': |
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return ERQLExpression(self.expression, self.mainvars, self.eid) |
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#if self.exprtype == 'RRQLExpression': |
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return RRQLExpression(self.expression, self.mainvars, self.eid) |
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def check_expression(self, *args, **kwargs): |
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return self._rqlexpr().check(*args, **kwargs) |
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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.expression_of: |
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return self.expression_of.rest_path(), {} |
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return super(RQLExpression, self).after_deletion_path() |
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class CWPermission(AnyEntity): |
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id = 'CWPermission' |
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fetch_attrs, fetch_order = fetch_config(['name', 'label']) |
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def dc_title(self): |
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if self.label: |
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return '%s (%s)' % (self.req._(self.name), self.label) |
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return self.req._(self.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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permissionof = getattr(self, 'reverse_require_permission', ()) |
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if len(permissionof) == 1: |
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return permissionof[0].rest_path(), {} |
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return super(CWPermission, self).after_deletion_path() |