def get_next_id(self):
        try:
            query = {'_id': 'last_id'}
            update = {'$inc': {'id': 1}}
            fn = self.db.internal.find_and_modify
            row = fn(query, update, upsert=True, new=True)
        except Exception as e:
            raise DatabaseException(e)
        return row['id']
def test_should_encode_node_with_label(self):
        a = Node("Person")
        encoded = cypher_repr(a, node_template="{labels} {properties}")
        assert encoded == u"(:Person {})"