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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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
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"""hooks to ensure use_email / primary_email relations consistency"""
__docformat__ = "restructuredtext en"
from cubicweb.server import hook
class SetUseEmailRelationOp(hook.Operation):
"""delay this operation to commit to avoid conflict with a late rql query
already setting the relation
"""
rtype = 'use_email'
entity = email = None # make pylint happy
def condition(self):
"""check entity has use_email set for the email address"""
return not any(e for e in self.entity.use_email
if self.email.eid == e.eid)
def precommit_event(self):
if self.cnx.deleted_in_transaction(self.entity.eid):
return
if self.cnx.deleted_in_transaction(self.email.eid):
return
if self.condition():
self.cnx.execute(
'SET X %s Y WHERE X eid %%(x)s, Y eid %%(y)s' % self.rtype,
{'x': self.entity.eid, 'y': self.email.eid})
class SetPrimaryEmailRelationOp(SetUseEmailRelationOp):
rtype = 'primary_email'
def condition(self):
"""check entity has no primary_email set"""
return not self.entity.primary_email
class SetPrimaryEmailHook(hook.Hook):
"""notify when a bug or story or version has its state modified"""
__regid__ = 'setprimaryemail'
__select__ = hook.Hook.__select__ & hook.match_rtype('use_email')
category = 'email'
events = ('after_add_relation',)
def __call__(self):
entity = self._cw.entity_from_eid(self.eidfrom)
if 'primary_email' in entity.e_schema.subject_relations():
SetPrimaryEmailRelationOp(self._cw, entity=entity,
email=self._cw.entity_from_eid(self.eidto))
class SetUseEmailHook(hook.Hook):
"""notify when a bug or story or version has its state modified"""
__regid__ = 'setprimaryemail'
__select__ = hook.Hook.__select__ & hook.match_rtype('primary_email')
category = 'email'
events = ('after_add_relation',)
def __call__(self):
entity = self._cw.entity_from_eid(self.eidfrom)
if 'use_email' in entity.e_schema.subject_relations():
SetUseEmailRelationOp(self._cw, entity=entity,
email=self._cw.entity_from_eid(self.eidto))