Fix (de)serialization of ComputedRelation read permissions
For normal relation types, permissions don't need to be stored since
they're just default values for the relation definitions. However,
computed relations are serialized (as CWComputedRType), while their
relation definitions are added at schema finalization time, and are only
in memory. So add the 'read_permission' relation to CWComputedRType,
and the appropriate hooks to save and restore those permissions.
To avoid having to touch yams, we drop the 'add' and 'delete'
permissions from the default computed relation permissions; this should
probably be backported there. The actual permissions (set on the
relation definitions) are hardcoded in finalize_computed_relations
anyway.
In deserialize_schema, the CWComputedRType handling needs to be delayed
a little bit, until after we've called deserialize_ertype_permissions.
The rql2sql test is adjusted because CWComputedRType has a 'name'
attribute and the 'read_permission' relation, which generates ambiguity
vs CWEType.
We add an explicit CubicWebRelationSchema.check_permission_definitions,
since we need to check both that computed and non-computed rtypes are
defined properly.
Based on report and initial patch from Christophe de Vienne (thanks!).
Closes #5706307
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from yams.buildobjs import (RelationDefinition, RelationType, EntityType,
String, Datetime, Int)
from yams.reader import context
from cubicweb.schema import ERQLExpression
_ = unicode
class friend(RelationDefinition):
subject = ('CWUser', 'CWGroup')
object = ('CWUser', 'CWGroup')
symmetric = True
class Folder(EntityType):
name = String()
class parent(RelationDefinition):
subject = 'Folder'
object = 'Folder'
composite = 'object'
cardinality = '?*'
class children(RelationDefinition):
subject = 'Folder'
object = 'Folder'
composite = 'subject'
class Email(EntityType):
"""electronic mail"""
subject = String(fulltextindexed=True)
date = Datetime(description=_('UTC time on which the mail was sent'))
messageid = String(required=True, indexed=True)
headers = String(description=_('raw headers'))
class EmailPart(EntityType):
"""an email attachment"""
__permissions__ = {
'read': ('managers', 'users', 'guests',), # XXX if E parts X, U has_read_permission E
'add': ('managers', ERQLExpression('E parts X, U has_update_permission E'),),
'delete': ('managers', ERQLExpression('E parts X, U has_update_permission E')),
'update': ('managers', 'owners',),
}
content = String(fulltextindexed=True)
content_format = String(required=True, maxsize=50)
ordernum = Int(required=True)
class parts(RelationType):
subject = 'Email'
object = 'EmailPart'
cardinality = '*1'
composite = 'subject'
fulltext_container = 'subject'
class sender(RelationDefinition):
subject = 'Email'
object = 'EmailAddress'
cardinality = '?*'
inlined = True
class recipients(RelationDefinition):
subject = 'Email'
object = 'EmailAddress'