def __init__(self, params, demand=0, satisfied=False):
self.id = hash_dict(params)
self.params = params
self.params_string = json_dumps(self.params)
self.demand = demand
self.satisfied = satisfied
self.last_occurence = None
def __init__(self, params, demand=0, satisfied=False):
self.id = hash_dict(params)
self.params = params
self.params_string = json_dumps(self.params)
self.demand = demand
self.satisfied = satisfied
self.last_occurence = None
def get_or_create(cls, params, session=None):
if session is None:
session = cls
id = hash_dict(params)
instance = session.query(cls).filter(cls.id == id).first()
if instance:
return instance, False
instance = Node(params)
session.add(instance)
return instance, True
def get_or_create(cls, params, session=None):
if session is None:
session = cls
id = hash_dict(params)
instance = session.query(cls).filter(cls.id == id).first()
if instance:
return instance, False
instance = Node(params)
session.add(instance)
return instance, True
def __init__(self, params, demand=0):
self.id = hash_dict(params).hexdigest()
self.params = params
self.params_string = json_dumps(self.params)
self.demand = demand
self.last_occurence = None
