def create(cls, *props, **kwargs):
"""
Call to CREATE with parameters map. A new instance will be created and saved.
:param props: dict of properties to create the nodes.
:type props: tuple
:param lazy: False by default, specify True to get nodes with id only without the parameters.
:type: bool
:rtype: list
"""
if 'streaming' in kwargs:
warnings.warn(
'streaming is not supported by bolt, please remove the kwarg',
category=DeprecationWarning,
stacklevel=1)
lazy = kwargs.get('lazy', False)
# create mapped query
print(':'.join(cls.inherited_labels()))
query = "CREATE (n:{0} $create_params)".format(':'.join(
cls.inherited_labels()))
# close query
if lazy:
query += " RETURN id(n)"
else:
query += " RETURN n"
results = []
for item in [
cls.deflate(p, obj=_UnsavedNode(), skip_empty=True)
for p in props
]:
node, _ = db.cypher_query(query, {'create_params': item})
results.extend(node[0])
nodes = [cls.inflate(node) for node in results]
if not lazy and hasattr(cls, 'post_create'):
for node in nodes:
node.post_create()
return nodes
def create(cls, *props, **kwargs):
"""
Call to CREATE with parameters map. A new instance will be created and saved.
:param props: dict of properties to create the nodes.
:type props: tuple
:param lazy: False by default, specify True to get nodes with id only without the parameters.
:type: bool
:rtype: list
"""
if 'streaming' in kwargs:
warnings.warn('streaming is not supported by bolt, please remove the kwarg',
category=DeprecationWarning, stacklevel=1)
lazy = kwargs.get('lazy', False)
# create mapped query
query = "CREATE (n:{0} {{create_params}})".format(':'.join(cls.inherited_labels()))
# close query
if lazy:
query += " RETURN id(n)"
else:
query += " RETURN n"
results = []
for item in [cls.deflate(p, obj=_UnsavedNode(), skip_empty=True) for p in props]:
node, _ = db.cypher_query(query, {'create_params': item})
results.extend(node[0])
nodes = [cls.inflate(node) for node in results]
if not lazy and hasattr(cls, 'post_create'):
for node in nodes:
node.post_create()
return nodes