def to_python(self, value): if value is None: return None return Card.list_from_str(value)
def from_db_value(self, value, expression, connection, context): if value is None: return None return Card.list_from_str(value)
def to_python(self, value): if value is None: return None return Card.list_from_str(value)
def from_db_value(self, value, expression, connection, context): if value is None: return None return Card.list_from_str(value)