def get_related(self, a, relationship_name):
related = set()
relationship = Relationship.get(relationship_name)
for n in self.g.neighbors(a):
if dict(self.g.edge_attr.get((a, n), [])).get("relationship") == relationship:
related.add(n)
inverted_relationship = relationship.invert()
for n in self.g.incidents(a):
if dict(self.g.edge_attr.get((a, a), [])).get("relationship") == inverted_relationship:
related.add(n)
return related
def get_related(self, a, relationship_name):
related = set()
relationship = Relationship.get(relationship_name)
for n in self.g.neighbors(a):
if dict(self.g.edge_attr.get(
(a, n), [])).get("relationship") == relationship:
related.add(n)
inverted_relationship = relationship.invert()
for n in self.g.incidents(a):
if dict(self.g.edge_attr.get(
(a, a), [])).get("relationship") == inverted_relationship:
related.add(n)
return related
def relate(self, a: Thing, relationship_name: str, b: Thing):
relationship = Relationship.get(relationship_name)
self.g.add_edge((b, a), attrs=[("relationship", relationship)])
def relate(self, a: Thing, relationship_name: str, b: Thing):
relationship = Relationship.get(relationship_name)
self.g.add_edge((b, a), attrs=[("relationship", relationship)])
def test_relationshps_are_singletons(self):
r0 = Relationship.get("xxx")
r1 = Relationship.get("xxx")
self.assertTrue(r0 == r1)
def test_some_relationships_can_be_inberted(self):
r0 = Relationship.get("above")
r1 = Relationship.get("below")
self.assertEqual(r0.invert(), r1)