Question

我正在尝试回复评论。在此过程中，我不得不在comments_controller中创建一个新动作，以便使用AJAX让回复表单显示而不刷新页面。问题是当我执行代码时

#routes.rb
resources :comments, :only => [:create, :destroy] do
    get :reply
end

Params [：id]给出nil。

我的一些文件

#_comment.haml
%div.comment{ :id => "comment-#{comment.id}" }
    %hr
    = link_to "×", comment_path(comment), :method => :delete, :remote => true, :confirm => "Are you sure you want to remove this comment?", :disable_with => "×", :class => 'close'
    %h4
        = comment.user.first_name
        %small= comment.updated_at
    %p= comment.body
    %p= link_to "Reply", comment_reply_path(comment), :method => :get, :remote => true

然后

#comments_controller.rb
def reply
    @comment = Comment.find(params[:id])
    respond_to do |format|
      format.js
    end
end

和

= link_to "×", comment_path(comment), :method => :delete, :remote => true, :confirm => "Are you sure you want to remove this comment?", :disable_with => "×", :class => 'close'

同一行Comment.find（params [：id]）在我这样做时起作用

%p= link_to "Reply", comment_reply_path(comment), :method => :get, :remote => true

但不适用于

<div class="col-xs-1 col-md-3 col-lg-6">

我猜它与我的路线有关？另外，作为一个可能相关的问题，当我为自定义操作制作路线时，我何时使用get，post，delete，patch等。

Answer 1

请尝试在路线中添加会员

#routes.rb
resources :comments, :only => [:create, :destroy] do
  get :reply, on: :member
end

如果您不添加on: :member，生成的路线将为/comments/:comment_id/reply，当您执行此操作时，路线将为/comments/:id/reply。

Answer 2

如果您希望回复传入ID，则需要提及会员。

#routes.rb
resources :comments, :only => [:create, :destroy] do
   member do
    get :reply
  end
end

Params [：id]为自定义操作返回nil

2 个答案: