def _potential_relations(obj):
"""Given an object return tuples of name, index, relation value.
Returns both IRelationValue attributes as well as ITemporaryRelationValue
attributes.
If this is a IRelationList attribute, index will contain the index
in the list. If it's a IRelation attribute, index will be None.
"""
for iface in providedBy(obj).flattened():
for name, field in getFields(iface).items():
frel = name + '_rel'
_rel = iface.queryTaggedValue(frel)
if _rel is not None:
field = _rel
name = frel
if IRelation.providedBy(field):
try:
relation = getattr(obj, name)
except AttributeError:
# can't find this relation on the object
continue
yield name, None, relation
if IRelationList.providedBy(field):
try:
l = getattr(obj, name)
except AttributeError:
# can't find the relation list on this object
continue
if l is not None:
for i, relation in enumerate(l):
yield name, i, relation
def append_links(self, obj, link_objs):
for name, field, schemata in self._iter_fields(obj.portal_type):
storage = schemata(obj)
fieldvalue = getattr(storage, name)
if not fieldvalue:
continue
if IRelation.providedBy(field):
if fieldvalue.isBroken():
link = Link()
link.complete_information_for_broken_relation_with_broken_relation_obj(
obj, field)
link_objs.append(link)
elif IURI.providedBy(field):
link = Link()
link.complete_information_with_external_path(obj,
fieldvalue)
link_objs.append(link)
elif IRichText.providedBy(field):
content = fieldvalue.raw
self._extract_and_append_link_objs(content, obj, link_objs)
return link_objs
def _potential_relations(obj):
"""Given an object return tuples of name, index, relation value.
Returns both IRelationValue attributes as well as ITemporaryRelationValue
attributes.
If this is a IRelationList attribute, index will contain the index
in the list. If it's a IRelation attribute, index will be None.
"""
for iface in providedBy(obj).flattened():
for name, field in getFields(iface).items():
if IRelation.providedBy(field):
try:
relation = getattr(obj, name)
except AttributeError:
# can't find this relation on the object
continue
yield name, None, relation
if IRelationList.providedBy(field):
try:
l = getattr(obj, name)
except AttributeError:
# can't find the relation list on this object
continue
if l is not None:
for i, relation in enumerate(l):
yield name, i, relation
def extract_relations(obj):
assignable = IBehaviorAssignable(obj, None)
if assignable is None:
return
for behavior in assignable.enumerateBehaviors():
if behavior.marker != behavior.interface:
for name, field in getFields(behavior.interface).items():
if IRelation.providedBy(field):
try:
relation = getattr(behavior.interface(obj), name)
except AttributeError:
continue
yield behavior.interface, name, relation
if IRelationList.providedBy(field):
try:
l = getattr(behavior.interface(obj), name)
except AttributeError:
continue
if l is not None:
for relation in l:
yield behavior.interface, name, relation
def extract_relations(obj):
assignable = IBehaviorAssignable(obj, None)
if assignable is None:
return
for behavior in assignable.enumerateBehaviors():
if behavior.marker == behavior.interface:
continue
for name, field in getFields(behavior.interface).items():
if IRelation.providedBy(field):
try:
relation = getattr(behavior.interface(obj), name)
except AttributeError:
continue
yield behavior.interface, name, relation
if IRelationList.providedBy(field):
try:
rel_list = getattr(behavior.interface(obj), name)
except AttributeError:
continue
if rel_list is not None:
for relation in rel_list:
yield behavior.interface, name, relation