def __init__(self, entity, parent=None, params=None, *args, **kwargs):
if isinstance(entity, Entity):
VM.set_query_var(entity)
params = Params(prefix='', key=entity.query_variable)
self.__entity__ = entity
super(Builder, self).__init__(parent=parent,
params=params,
*args,
**kwargs)
if isinstance(entity, Relationship):
self.MATCH.node(self.start).rel(entity.query_variable,
labels=entity.labels)
self.node(self.end)
elif isinstance(entity, Node):
self.MATCH.node(entity.query_variable, labels=entity.labels)
else:
msg = ('The entity {} must be either a Node or '
'Relationship').format(repr(entity))
raise QueryBuilderException(msg)
if entity.id is not None:
self.WHERE(__.id(self.entity) == entity.id)
def test_can_reuse_params_object_across_pypher_isntances(self):
params = Params('xxx')
p = Pypher(params=params)
p2 = Pypher(params=params)
self.assertEqual(id(p.params), id(p2.params))
def __init__(self, connection=None):
self.connection = connection
self.params = Params(self.PARAM_PREFIX)
self.params = None
self.units = []