Rails Inherited_resources多重belongs_to

Question

我有一个comments_controller，它使用inherited_resources并处理这个模型：Comment (belongs_to Shop and belongs_to User)和Shop (belongs_to User)。Rails 4.1.1和Inherited_resources v为1.5.0。

路线如下：

resources :shop do
  resources :comments, only: [:create, :destroy]
end

但是，下面的代码不起作用：

class CommentsController < InheritedResources::Base
  before_filter :authenticate_user!
  nested_belongs_to :user, :shop
  actions :create, :destroy

  def create
    @comment = build_resource
    @comment.shop = Shop.find(params[:hotel_id])
    @comment.user = current_user

    create!
  end

  def destroy
    @hotel = Shop.find(params[:hotel_id])
    @comment = Comment.find(params[:id])
    @comment.user = current_user

    destroy!
  end

 private

   def permitted_params
     params.permit(:comment => [:content])
   end

Rspec测试创建/删除注释告诉我Couldn't find User without an ID。

谢谢你的帮助。

UPD是失败的测试之一：

  let(:user) { FactoryGirl.create(:user) }
  let(:shop) { FactoryGirl.create(:shop, user: user) }

  describe "comment creation" do
    before { visit shop_path(shop) }

    describe "with invalid information" do
      it "should not create a comment" do       
        expect { click_button "Post a comment" }.not_to change(Comment, :count)
      end
    end

Answer 1

从您的路线来看，您似乎想要处理属于Comments的Shop。在本例中，您不需要nested_belongs_to，而是在控制器中将其更改为belongs_to :shop，这将处理它。并分别添加另一行belongs_to :user。

因此，您的控制器将如下所示：

class CommentsController < InheritedResources::Base
  before_filter :authenticate_user!
  belongs_to :shop
  belongs_to :user
  actions :create, :destroy

  .
  .
  .
end