author | Nicolas Chauvat <nicolas.chauvat@logilab.fr> |
Sat, 30 May 2009 00:42:35 +0200 | |
changeset 2017 | 4090a9546ea3 |
parent 1979 | daf297034197 |
child 2127 | bc86aa68cc43 |
permissions | -rw-r--r-- |
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"""core CubicWeb schema necessary for bootstrapping the actual application's schema |
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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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from cubicweb.schema import format_constraint |
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# not restricted since as "is" is handled as other relations, guests need |
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# access to this |
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class CWEType(MetaEntityType): |
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"""define an entity type, used to build the application schema""" |
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name = String(required=True, indexed=True, internationalizable=True, |
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unique=True, maxsize=64) |
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description = RichString(internationalizable=True, |
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description=_('semantic description of this entity type')) |
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meta = Boolean(description=_('is it an application entity type or not ?')) |
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# necessary to filter using RQL |
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final = Boolean(description=_('automatic')) |
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class CWRType(MetaEntityType): |
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"""define a relation type, used to build the application schema""" |
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name = String(required=True, indexed=True, internationalizable=True, |
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unique=True, maxsize=64) |
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description_format = String(meta=True, internationalizable=True, maxsize=50, |
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default='text/plain', constraints=[format_constraint]) |
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description = String(internationalizable=True, |
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description=_('semantic description of this relation type')) |
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meta = Boolean(description=_('is it an application relation type or not ?')) |
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symetric = Boolean(description=_('is this relation equivalent in both direction ?')) |
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inlined = Boolean(description=_('is this relation physically inlined? you should know what you\'re doing if you are changing this!')) |
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fulltext_container = String(description=_('if full text content of subject/object entity ' |
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'should be added to other side entity (the container).'), |
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vocabulary=('', _('subject'), _('object')), |
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maxsize=8, default=None) |
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final = Boolean(description=_('automatic')) |
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class CWAttribute(MetaEntityType): |
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"""define a final relation: link a final relation type from a non final |
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entity to a final entity type. |
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used to build the application schema |
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""" |
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relation_type = SubjectRelation('CWRType', cardinality='1*', |
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constraints=[RQLConstraint('O final TRUE')], |
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composite='object') |
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from_entity = SubjectRelation('CWEType', cardinality='1*', |
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constraints=[RQLConstraint('O final FALSE')], |
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composite='object') |
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to_entity = SubjectRelation('CWEType', cardinality='1*', |
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constraints=[RQLConstraint('O final TRUE')], |
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composite='object') |
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constrained_by = SubjectRelation('CWConstraint', cardinality='*1', composite='subject') |
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cardinality = String(maxsize=2, internationalizable=True, |
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vocabulary=[_('?1'), _('11')], |
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description=_('subject/object cardinality')) |
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ordernum = Int(description=('control subject entity\'s relations order'), default=0) |
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indexed = Boolean(description=_('create an index for quick search on this attribute')) |
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fulltextindexed = Boolean(description=_('index this attribute\'s value in the plain text index')) |
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internationalizable = Boolean(description=_('is this attribute\'s value translatable')) |
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defaultval = String(maxsize=256) |
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description_format = String(meta=True, internationalizable=True, maxsize=50, |
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default='text/plain', constraints=[format_constraint]) |
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description = String(internationalizable=True, |
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description=_('semantic description of this attribute')) |
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CARDINALITY_VOCAB = [_('?*'), _('1*'), _('+*'), _('**'), |
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_('?+'), _('1+'), _('++'), _('*+'), |
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_('?1'), _('11'), _('+1'), _('*1'), |
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_('??'), _('1?'), _('+?'), _('*?')] |
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class CWRelation(MetaEntityType): |
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"""define a non final relation: link a non final relation type from a non |
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final entity to a non final entity type. |
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used to build the application schema |
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""" |
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relation_type = SubjectRelation('CWRType', cardinality='1*', |
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constraints=[RQLConstraint('O final FALSE')], |
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composite='object') |
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from_entity = SubjectRelation('CWEType', cardinality='1*', |
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constraints=[RQLConstraint('O final FALSE')], |
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composite='object') |
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to_entity = SubjectRelation('CWEType', cardinality='1*', |
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constraints=[RQLConstraint('O final FALSE')], |
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composite='object') |
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constrained_by = SubjectRelation('CWConstraint', cardinality='*1', composite='subject') |
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cardinality = String(maxsize=2, internationalizable=True, |
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vocabulary=CARDINALITY_VOCAB, |
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description=_('subject/object cardinality')) |
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ordernum = Int(description=_('control subject entity\'s relations order'), |
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default=0) |
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composite = String(description=_('is the subject/object entity of the relation ' |
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'composed of the other ? This implies that when ' |
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'the composite is deleted, composants are also ' |
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'deleted.'), |
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vocabulary=('', _('subject'), _('object')), |
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maxsize=8, default=None) |
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description_format = String(meta=True, internationalizable=True, maxsize=50, |
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default='text/plain', constraints=[format_constraint]) |
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description = String(internationalizable=True, |
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description=_('semantic description of this relation')) |
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# not restricted since it has to be read when checking allowed transitions |
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class RQLExpression(MetaEntityType): |
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"""define a rql expression used to define permissions""" |
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exprtype = String(required=True, vocabulary=['ERQLExpression', 'RRQLExpression']) |
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mainvars = String(maxsize=8, |
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description=_('name of the main variables which should be ' |
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'used in the selection if necessary (comma ' |
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'separated)')) |
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expression = String(required=True, |
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description=_('restriction part of a rql query. ' |
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'For entity rql expression, X and U are ' |
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'predefined respectivly to the current object and to ' |
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'the request user. For relation rql expression, ' |
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'S, O and U are predefined respectivly to the current ' |
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'relation\'subject, object and to ' |
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'the request user. ')) |
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read_permission = ObjectRelation(('CWEType', 'CWRType'), cardinality='+?', composite='subject', |
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description=_('rql expression allowing to read entities/relations of this type')) |
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add_permission = ObjectRelation(('CWEType', 'CWRType'), cardinality='*?', composite='subject', |
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description=_('rql expression allowing to add entities/relations of this type')) |
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delete_permission = ObjectRelation(('CWEType', 'CWRType'), cardinality='*?', composite='subject', |
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description=_('rql expression allowing to delete entities/relations of this type')) |
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update_permission = ObjectRelation('CWEType', cardinality='*?', composite='subject', |
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description=_('rql expression allowing to update entities of this type')) |
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class CWConstraint(MetaEntityType): |
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"""define a schema constraint""" |
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cstrtype = SubjectRelation('CWConstraintType', cardinality='1*') |
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value = String(description=_('depends on the constraint type')) |
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class CWConstraintType(MetaEntityType): |
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"""define a schema constraint type""" |
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name = String(required=True, indexed=True, internationalizable=True, |
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unique=True, maxsize=64) |
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# not restricted since it has to be read when checking allowed transitions |
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class CWGroup(MetaEntityType): |
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"""define a CubicWeb users group""" |
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name = String(required=True, indexed=True, internationalizable=True, |
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unique=True, maxsize=64) |
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read_permission = ObjectRelation(('CWEType', 'CWRType'), cardinality='+*', |
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description=_('groups allowed to read entities/relations of this type')) |
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add_permission = ObjectRelation(('CWEType', 'CWRType'), |
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description=_('groups allowed to add entities/relations of this type')) |
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delete_permission = ObjectRelation(('CWEType', 'CWRType'), |
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description=_('groups allowed to delete entities/relations of this type')) |
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update_permission = ObjectRelation('CWEType', |
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description=_('groups allowed to update entities of this type')) |
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class relation_type(MetaRelationType): |
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"""link a relation definition to its relation type""" |
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inlined = True |
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class from_entity(MetaRelationType): |
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"""link a relation definition to its subject entity type""" |
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inlined = True |
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class to_entity(MetaRelationType): |
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"""link a relation definition to its object entity type""" |
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inlined = True |
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class constrained_by(MetaRelationType): |
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"""constraints applying on this relation""" |
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class cstrtype(MetaRelationType): |
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"""constraint factory""" |
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inlined = True |
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class read_permission(MetaRelationType): |
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"""core relation giving to a group the permission to read an entity or |
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relation type |
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""" |
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class add_permission(MetaRelationType): |
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"""core relation giving to a group the permission to add an entity or |
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relation type |
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""" |
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class delete_permission(MetaRelationType): |
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"""core relation giving to a group the permission to delete an entity or |
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relation type |
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""" |
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class update_permission(MetaRelationType): |
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"""core relation giving to a group the permission to update an entity type |
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""" |
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class is_(MetaRelationType): |
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"""core relation indicating the type of an entity |
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""" |
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name = 'is' |
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# don't explicitly set composite here, this is handled anyway |
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#composite = 'object' |
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permissions = { |
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'read': ('managers', 'users', 'guests'), |
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'add': (), |
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'delete': (), |
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} |
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cardinality = '1*' |
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subject = '**' |
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object = 'CWEType' |
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class is_instance_of(MetaRelationType): |
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"""core relation indicating the types (including specialized types) |
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of an entity |
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""" |
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# don't explicitly set composite here, this is handled anyway |
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#composite = 'object' |
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permissions = { |
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'read': ('managers', 'users', 'guests'), |
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'add': (), |
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'delete': (), |
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} |
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cardinality = '+*' |
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subject = '**' |
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object = 'CWEType' |
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class specializes(MetaRelationType): |
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name = 'specializes' |
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permissions = { |
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'read': ('managers', 'users', 'guests'), |
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'add': ('managers',), |
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'delete': ('managers',), |
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} |
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cardinality = '?*' |
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subject = 'CWEType' |
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object = 'CWEType' |