요런 식으로 sqlalchemy의 joinedload, subqueryload를 바꿔치기함

gistfile1.py

from functools import wraps

def __extend_keys(l):
    ret = [[]]
    for p in l:
        for r in list(ret):
            if isinstance(p, list):
                ret.remove(r)
                for e in p:
                    nr = list(r)
                    nr.append(e)
                    ret.append(nr)
            else:
                r.append(p)

    return ret

def __build_wrapper(f):
    @wraps(f)
    def wrapper(*keys, **kwargs):
        extended = __extend_keys(keys)
        if len(extended) == 1:
            return f(*keys, **kwargs)
        else:
            return [f(*k, **kwargs) for k in extended]

    return wrapper



orm.joinedload = __build_wrapper(orm.joinedload)
orm.joinedload_all = __build_wrapper(orm.joinedload_all)
orm.subqueryload = __build_wrapper(orm.subqueryload)
orm.subqueryload_all = __build_wrapper(orm.subqueryload_all)

string도 Iterable이라

    joinedload(ParentPurchase.user_creator, 'facebook_account')

요런 코드에서 바보가 됨 --;