dal.py 文件源码

def get_query_mailbox(self, query):
        nofield = True
        tablename = None
        attr = query
        while nofield:
            if hasattr(attr, "first"):
                attr = attr.first
                if isinstance(attr, Field):
                    return attr.tablename
                elif isinstance(attr, Query):
                    pass
                else:
                    return None
            else:
                return None
        return tablename