def set_parents(self, parents):
from apps.store.search import Collection as SearchCollection
hier = SearchCollection.taxonomy('coll_hierarchy')
hier.add_category(self.id)
changed = False
new_parents = set()
for parent in parents:
if parent == self.id or parent == '':
continue
new_parents.add(parent)
# Remove the collection from old parents which are no longer parents
for parent in self._parents:
if parent in new_parents:
continue
try:
pcoll = Collection.objects.get(parent)
except KeyError:
continue # Can get KeyError if some of the ancestors don't exist - this would need to be fixed, but failing here would make it impossible for the user to fix it.
pcoll._remove_child(self.id)
Collection.objects.set(pcoll)
hier.remove_parent(self.id, parent)
changed = True
for parent in new_parents:
if parent in self._parents:
continue
pcoll = Collection.objects.get(parent)
pcoll._add_child(self.id)
Collection.objects.set(pcoll)
hier.add_parent(self.id, parent)
changed = True
self._parents = tuple(sorted(new_parents))
if changed:
self._calced_ancestors = False
return changed
