a flask request validate decorator~

not_empty

def not_empty(*params,**kkargs):
    if (params is None or params == []) and len(kargs) == 0:
        raise Exception("You should give me some params;")
    def wrapper(f):
        @wraps(f)
        def wrapped(*args,**kargs):
            for p in params:
                if g.args.get(p,'') == '':
                    return error(CODE.COMMON.PARAM_NOT_EMPTY,"参数不存在:%s"%p)
            for k,v in kkargs.iteritems():
                if request.method.lower() == k.lower():
                    if isinstance(v,(tuple,list)):
                        for p in v:
                            if g.args.get(p,'') == '':
                                return error(CODE.COMMON.PARAM_NOT_EMPTY,"参数不存在:%s"%p)
                    elif isinstance(v,(str,unicode)):
                        if g.args.get(v,'') == '':
                            return error(CODE.COMMON.PARAM_NOT_EMPTY,"参数不存在:%s"%p)

            return f(*args,**kargs)
        return wrapped
    return wrapper

a example~

@bp.route('/order/comment',methods=['GET','POST'])
@login_required
@not_empty('orderId',POST=['servicesc','envsc','tastesc','foods'])
def order_comment():
    pass