def Vocabulary(self, content_instance=None):
#If we have a method providing the list of types go with it,
#it can always pull allowed_types if it needs to (not that we
#pass the field name)
value = ObjectField.Vocabulary(self, content_instance)
if value:
return value
results = []
catalog = getToolByName(content_instance, 'portal_catalog')
try:
ws_path = content_instance.workspacePath()
except AttributeError:
ws_path = "/"
if self.allowed_types: # we trust that all allowed_types are properly referencable and cataloged
results = catalog(Type=self.allowed_types, path=ws_path)
else:
keys = catalog.uniqueValuesFor('UID')
results = catalog(UID=keys, path=ws_path) #... but this should never happen
results = [(r, r.getObject()) for r in results]
value = [(r.UID, obj and (str(obj.Title().strip()) or \
str(obj.getId()).strip()) or \
log('Field %r: Object at %r could not be found' % \
(self.getName(), r.getURL())) or \
r.Title or r.UID) for r, obj in results]
if not self.required:
value.insert(0, ('', '<no reference>'))
return DisplayList(value)
