Question

Rails 5.我有一个反馈表单，它接受一个嵌套资源（接收器）。

class Feedback < ApplicationRecord
   belongs_to :receiver, class_name: 'User', foreign_key: :receiver_id
   accepts_nested_attributes_for :receiver
end

class FeedbacksController < ApplicationController
   def create
      begin
        @feedback = Feedback.new feedback_params
      rescue Exception => e
        binding.pry
      end
      ... do other stuff
   end

   def feedback_params
      params.require(:feedback).permit(:message, receiver_attributes: [:id, :email, :handle])
       end
   end
end

= f.fields_for :receiver do |r|
  = f.text_field :id, value: f.object.receiver.id, class: 'hidden'

我的测试在尝试创建反馈时失败

#<ActiveRecord::RecordNotFound: Couldn't find User with ID=980191240 for Feedback with ID=>

使用binding.pry，我可以找到具有测试ID的用户

User.find 980191240
#<User id: 980191240, email: "wong.amy@example.com", created_at: "2018-03-27 02:50:52", updated_at: "2018-03-27 02:50:52", first_name: "amy", last_name: "wong", handle: "wong">

任何帮助将不胜感激

Answer 1

我认为问题是在视图中使用的变量，对于receiver.id的情况，您应该使用变量r而不是f

= f.fields_for :receiver do |r|
  = r.text_field :id, value: f.object.receiver.id, class: 'hidden'

也检查在创建反馈时没有传递正确的参数

希望这可以帮助您解决问题。

rails无法找到嵌套资源

1 个答案: