def test_can_merge_node_with_model_overriding_arguments(graph):
from py2neo.ogm import Model
class Person(Model):
__primarylabel__ = "Person"
__primarykey__ = "name"
graph.delete_all()
a = Node("Person", name="Alice")
a.__model__ = Person
graph.merge(a, "Human", "nom")
assert graph.nodes.match("Person", name="Alice").first() == a
def test_merge_with_magic_values_overrides_arguments(graph, make_unique_id):
from py2neo.ogm import Model
label_a = make_unique_id()
label_b = make_unique_id()
class ModelB(Model):
__primarylabel__ = label_b
__primarykey__ = "b"
a = Node(label_a, a=1)
b = Node(label_b, b=2)
graph.create(a | b)
a_id = a.identity
b_id = b.identity
node = Node(label_a, label_b, a=1, b=2)
node.__model__ = ModelB
graph.merge(node, label_a, "a")
assert node.identity != a_id
assert node.identity == b_id
