def update_relationship(rels, key):
labels_node1 = rels.get('labels_node1')
if labels_node1 in ('', None):
return None, 201
name_node1 = rels.get('name_node1')
if name_node1 in ('', None):
return None, 201
labels_node2 = rels.get('labels_node2')
if labels_node2 in ('', None):
return None, 201
name_node2 = rels.get('name_node2')
if name_node2 in ('', None):
return None, 201
labels = rels.get('labels')
name = key
if labels in ('', None) or name in ('', None):
return None, 201
full_name = rels.get('full_name')
if full_name == '':
full_name = None
image = rels.get('image')
if image == '':
image == None
object_id = rels.get('object_id')
if object_id == 0:
object_id == None
weight = rels.get('weight')
if weight == 0:
weight == None
keywords = rels.get('keywords')
if keywords == '':
keywords == None
areas = rels.get('areas')
if areas == '':
areas == None
from_date = rels.get('from_date')
if from_date == '':
from_date == None
to_date = rels.get('to_date')
if to_date == '':
to_date == None
node1 = find_node(labels_node1, name_node1)
print(node1)
node2 = find_node(labels_node2, name_node2)
print(node2)
if node1 in ('', None) or node2 in ('', None):
return None, 201
relationship = Relationship(node1,
labels,
node2,
name=name,
full_name=full_name,
image=image,
object_id=object_id,
weight=weight,
keywords=keywords,
areas=areas,
from_date=from_date,
to_date=to_date)
relationship.__primarylabel__ = labels
relationship.__primarykey__ = name
print(relationship)
graph = neo4j_connect()
transaction = graph.begin()
transaction.merge(relationship, primary_key=name, primary_label=labels)
transaction.commit()
transaction.finished()
graph.exists(relationship)
return relationship, 200
def create_relationship(rels):
labels_node1 = rels.get('labels_node1')
if labels_node1 in ('', None):
return None, 201
name_node1 = rels.get('name_node1')
if name_node1 in ('', None):
return None, 201
labels_node2 = rels.get('labels_node2')
if labels_node2 in ('', None):
return None, 201
name_node2 = rels.get('name_node2')
if name_node2 in ('', None):
return None, 201
labels = rels.get('labels')
name = rels.get('name')
if labels in ('', None) or name in ('', None):
return None, 201
full_name = rels.get('full_name')
if full_name == '':
full_name = None
image = rels.get('image')
if image == '':
image == None
object_id = rels.get('object_id')
if object_id == 0:
object_id == None
weight = rels.get('weight')
if weight == 0:
weight == None
keywords = rels.get('keywords')
if keywords == '':
keywords == None
areas = rels.get('areas')
if areas == '':
areas == None
from_date = rels.get('from_date')
if from_date == '':
from_date == None
to_date = rels.get('to_date')
if to_date == '':
to_date == None
node1 = find_node(labels_node1, name_node1)
print(node1)
node2 = find_node(labels_node2, name_node2)
print(node2)
if node1 in ('', None) or node2 in ('', None):
return None, 201
relationship = Relationship(node1,
labels,
node2,
name=name,
full_name=full_name,
image=image,
object_id=object_id,
weight=weight,
keywords=keywords,
areas=areas,
from_date=from_date,
to_date=to_date)
relationship.__primarylabel__ = labels
relationship.__primarykey__ = name
graph = neo4j_connect()
transaction = graph.begin()
transaction.create(relationship)
transaction.commit()
transaction.finished()
graph.exists(relationship)
# constrain = f"""CREATE CONSTRAINT ON ()-[r:{labels}]-() ASSERT exists(r.name)"""
# graph.run(constrain)
return relationship, 200
