dataset.py 文件源码

def get_parameters(cls):
        """ obtiene los parametros de self.query """
        placeholders = set([p.value[1:] # sacar el ':' inicial
                           for p in filter(lambda t: t.ttype == sqlparse.tokens.Token.Name.Placeholder,
                                           sqlparse.parse(cls.get_query())[0].flatten())])
        return placeholders