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问题描述

限时删除!!

我运行轨道4.1.0.rc2和我得到了引发ArgumentError 块assert_valid_keys:未知的关键:为了当我尝试做的:

I'm running rails 4.1.0.rc2 and I'm getting the ArgumentError block in assert_valid_keys': Unknown key: :order when I try to do:

has_many :workout_exercises, dependent: :destroy, order: "exercise_order DESC"`

我想提出一个订单约束我的加盟模式,而据我所知,这曾与Rails的3.2,所以我也弄不清是怎么回事。有任何想法吗?

I want to put an order constraint on my join model, and as far as I can tell, this worked with Rails 3.2, so I can't figure out what is going on. Any ideas?

推荐答案

试试这个:

has_many :workout_exercises, dependent: :destroy,-> { order "exercise_order desc" }

更新,按OP的评论(重排指令):

Update, as per OP's comment (reorder the directives):

has_many :workout_exercises,-> { order "exercise_order desc" }, dependent: :destroy

这篇关于阻止assert_valid_keys“:未知的关键:为了(时ArgumentError)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

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09-08 06:10