def get_entity_children(self, identifier, recursive=True):
"""
Gets child concepts for a given URI or UUID identified entity
"""
if identifier in self.child_entities and recursive:
output = self.child_entities[identifier]
else:
act_children = []
p_for_superobjs = LinkAnnotation.PREDS_SBJ_IS_SUB_OF_OBJ
p_for_subobjs = LinkAnnotation.PREDS_SBJ_IS_SUPER_OF_OBJ
lequiv = LinkEquivalence()
lequiv.mem_cache_entities = self.mem_cache_entities
identifiers = lequiv.get_identifier_list_variants(identifier)
# print(str(identifiers))
self.mem_cache_entities = lequiv.mem_cache_entities
try:
# look for child items in the objects of the assertion
subobjs_anno = LinkAnnotation.objects.filter(subject__in=identifiers,
predicate_uri__in=p_for_subobjs)
if(len(subobjs_anno) < 1):
subobjs_anno = False
except LinkAnnotation.DoesNotExist:
subobjs_anno = False
if subobjs_anno is not False:
for sub_obj in subobjs_anno:
child_id = sub_obj.object_uri
act_children.append(child_id)
try:
"""
Now look for subordinate entities in the subject, not the object
"""
subsubj_anno = LinkAnnotation.objects.filter(object_uri__in=identifiers,
predicate_uri__in=p_for_superobjs)
if len(subsubj_anno) < 1:
subsubj_anno = False
except LinkAnnotation.DoesNotExist:
subsubj_anno = False
if subsubj_anno is not False:
for sub_sub in subsubj_anno:
child_id = sub_sub.subject
act_children.append(child_id)
if len(act_children) > 0:
identifier_children = []
for child_id in act_children:
if child_id.count('/') > 1:
oc_uuid = URImanagement.get_uuid_from_oc_uri(child_id)
if oc_uuid is not False:
child_id = oc_uuid
identifier_children.append(child_id)
# recursively get the children of the child
if recursive:
self.get_entity_children(child_id, recursive)
# same the list of children of the current identified item
if identifier not in self.child_entities:
self.child_entities[identifier] = identifier_children
else:
# save a False for the current identified item. it has no children
if identifier not in self.child_entities:
self.child_entities[identifier] = []
output = self.child_entities[identifier]
return output
