"""core CubicWeb schema, but not necessary at bootstrap time
:organization: Logilab
:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
_ = unicode
from yams.buildobjs import (EntityType, RelationType, SubjectRelation,
String, Boolean, Datetime, Password)
from cubicweb.schema import (RQLConstraint, WorkflowableEntityType,
ERQLExpression, RRQLExpression)
from cubicweb.schemas import META_ETYPE_PERMS, META_RTYPE_PERMS
class CWUser(WorkflowableEntityType):
"""define a CubicWeb user"""
permissions = {
'read': ('managers', 'users', ERQLExpression('X identity U')),
'add': ('managers',),
'delete': ('managers',),
'update': ('managers', ERQLExpression('X identity U, NOT U in_group G, G name "guests"'),),
}
login = String(required=True, unique=True, maxsize=64,
description=_('unique identifier used to connect to the application'))
upassword = Password(required=True) # password is a reserved word for mysql
firstname = String(maxsize=64)
surname = String(maxsize=64)
last_login_time = Datetime(description=_('last connection date'))
# allowing an email to be the primary email of multiple entities is necessary for
# test at least :-/
primary_email = SubjectRelation('EmailAddress', cardinality='??',
description=_('email address to use for notification'))
use_email = SubjectRelation('EmailAddress', cardinality='*?', composite='subject')
in_group = SubjectRelation('CWGroup', cardinality='+*',
constraints=[RQLConstraint('NOT O name "owners"')],
description=_('groups grant permissions to the user'))
class EmailAddress(EntityType):
"""an electronic mail address associated to a short alias"""
permissions = {
'read': ('managers', 'users', 'guests',), # XXX if P use_email X, U has_read_permission P
'add': ('managers', 'users',),
'delete': ('managers', 'owners', ERQLExpression('P use_email X, U has_update_permission P')),
'update': ('managers', 'owners', ERQLExpression('P use_email X, U has_update_permission P')),
}
alias = String(fulltextindexed=True, maxsize=56)
address = String(required=True, fulltextindexed=True,
indexed=True, unique=True, maxsize=128)
prefered_form = SubjectRelation('EmailAddress', cardinality='?*',
description=_('when multiple addresses are equivalent \
(such as python-projects@logilab.org and python-projects@lists.logilab.org), set this \
to indicate which is the preferred form.'))
class use_email(RelationType):
""" """
permissions = {
'read': ('managers', 'users', 'guests',),
'add': ('managers', RRQLExpression('U has_update_permission S'),),
'delete': ('managers', RRQLExpression('U has_update_permission S'),),
}
fulltext_container = 'subject'
class primary_email(RelationType):
"""the prefered email"""
permissions = use_email.permissions
class prefered_form(RelationType):
permissions = {
'read': ('managers', 'users', 'guests',),
# XXX should have update permissions on both subject and object,
# though by doing this we will probably have no way to add
# this relation in the web ui. The easiest way to acheive this
# is probably to be able to have "U has_update_permission O" as
# RQLConstraint of the relation definition, though this is not yet
# possible
'add': ('managers', RRQLExpression('U has_update_permission S'),),
'delete': ('managers', RRQLExpression('U has_update_permission S'),),
}
class in_group(RelationType):
"""core relation indicating a user's groups"""
permissions = META_RTYPE_PERMS
class owned_by(RelationType):
"""core relation indicating owners of an entity. This relation
implicitly put the owner into the owners group for the entity
"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers', RRQLExpression('S owned_by U'),),
'delete': ('managers', RRQLExpression('S owned_by U'),),
}
# 0..n cardinality for entities created by internal session (no attached user)
# and to support later deletion of a user which has created some entities
cardinality = '**'
subject = '*'
object = 'CWUser'
class created_by(RelationType):
"""core relation indicating the original creator of an entity"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers',),
'delete': ('managers',),
}
# 0..1 cardinality for entities created by internal session (no attached user)
# and to support later deletion of a user which has created some entities
cardinality = '?*'
subject = '*'
object = 'CWUser'
class creation_date(RelationType):
"""creation time of an entity"""
cardinality = '11'
subject = '*'
object = 'Datetime'
class modification_date(RelationType):
"""latest modification time of an entity"""
cardinality = '11'
subject = '*'
object = 'Datetime'
class cwuri(RelationType):
"""internal entity uri"""
cardinality = '11'
subject = '*'
object = 'String'
class CWProperty(EntityType):
"""used for cubicweb configuration. Once a property has been created you
can't change the key.
"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers', 'users',),
'update': ('managers', 'owners',),
'delete': ('managers', 'owners',),
}
# key is a reserved word for mysql
pkey = String(required=True, internationalizable=True, maxsize=256,
description=_('defines what\'s the property is applied for. '
'You must select this first to be able to set '
'value'))
value = String(internationalizable=True, maxsize=256)
for_user = SubjectRelation('CWUser', cardinality='?*', composite='object',
description=_('user for which this property is '
'applying. If this relation is not '
'set, the property is considered as'
' a global property'))
class for_user(RelationType):
"""link a property to the user which want this property customization. Unless
you're a site manager, this relation will be handled automatically.
"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers',),
'delete': ('managers',),
}
inlined = True
class CWPermission(EntityType):
"""entity type that may be used to construct some advanced security configuration
"""
permissions = META_ETYPE_PERMS
name = String(required=True, indexed=True, internationalizable=True, maxsize=100,
description=_('name or identifier of the permission'))
label = String(required=True, internationalizable=True, maxsize=100,
description=_('distinct label to distinguate between other permission entity of the same name'))
require_group = SubjectRelation('CWGroup',
description=_('groups to which the permission is granted'))
# explicitly add X require_permission CWPermission for each entity that should have
# configurable security
class require_permission(RelationType):
"""link a permission to the entity. This permission should be used in the
security definition of the entity's type to be useful.
"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers',),
'delete': ('managers',),
}
class require_group(RelationType):
"""used to grant a permission to a group"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers',),
'delete': ('managers',),
}
class ExternalUri(EntityType):
"""a URI representing an object in external data store"""
uri = String(required=True, unique=True, maxsize=256,
description=_('the URI of the object'))
class same_as(RelationType):
"""generic relation to specify that an external entity represent the same
object as a local one:
http://www.w3.org/TR/owl-ref/#sameAs-def
NOTE: You'll have to explicitly declare which entity types can have a
same_as relation
"""
permissions = {
'read': ('managers', 'users', 'guests',),
'add': ('managers', 'users'),
'delete': ('managers', 'owners'),
}
cardinality = '*1'
symetric = True
# NOTE: the 'object = ExternalUri' declaration will still be mandatory
# in the cube's schema.
object = 'ExternalUri'
class CWCache(EntityType):
"""a simple cache entity characterized by a name and
a validity date.
The target application is responsible for updating timestamp
when necessary to invalidate the cache (typically in hooks).
Also, checkout the AppObject.get_cache() method.
"""
permissions = {
'read': ('managers', 'users', 'guests'),
'add': ('managers',),
'update': ('managers', 'users',), # XXX
'delete': ('managers',),
}
name = String(required=True, unique=True, indexed=True, maxsize=128,
description=_('name of the cache'))
timestamp = Datetime(default='NOW')
# "abtract" relation types, not used in cubicweb itself
class identical_to(RelationType):
"""identical to"""
symetric = True
permissions = {
'read': ('managers', 'users', 'guests',),
# XXX should have update permissions on both subject and object,
# though by doing this we will probably have no way to add
# this relation in the web ui. The easiest way to acheive this
# is probably to be able to have "U has_update_permission O" as
# RQLConstraint of the relation definition, though this is not yet
# possible
'add': ('managers', RRQLExpression('U has_update_permission S'),),
'delete': ('managers', RRQLExpression('U has_update_permission S'),),
}
class see_also(RelationType):
"""generic relation to link one entity to another"""
symetric = True
permissions = {
'read': ('managers', 'users', 'guests',),
'add': ('managers', RRQLExpression('U has_update_permission S'),),
'delete': ('managers', RRQLExpression('U has_update_permission S'),),
}