Question

我是rails的新手，并且一直致力于创建一个基本的调查应用程序来处理嵌套资源。

以下是我最终的数据结构：

调查
问题，有外国调查
回答，提出异议
选择，参与调查的用户的外国人和他将选择的回答ID

我能够创建调查和问题结构。但是我的答案遇到了一些麻烦。它在我的问题的show.html.erb文件的最后一行引发了一个错误，我正在尝试link_to我的新答案。

这是问题的show.html.erb文件：

<div id='question'>
    <h2><%= @question.title %></h2>
    <% if @question.single_response %>
    <p>Single response</p>
    <% else %>
    <p>Multiple response</p>
    <% end %>
</div>
<%= link_to "Edit Question", [:edit, @survey, @question] %>
<%= link_to "Delete Question", [@survey, @question], method: :delete, data: { confirm: "Are you sure you want to delete this question?"} %>

<p>Answers</p>
<ul id='answers'>
    <% @question.answers.each do |answer| %>
    <li><%= link_to answer.title, [@survey, @question, answer] %></li>
    <% end %>
</ul>
<p><%= link_to "Add Answer", new_survey_question_answer_path([@survey,@question]) %></p>

这是我的routes.rb：

SurveyMe::Application.routes.draw do

  resources :surveys do
    resources :questions do
      resources :answers
    end
  end

  devise_for :developers
  devise_for :users

我很确定问题是[@survey，@question]这一行。有什么想法我应该放在那里吗？

这是错误：

 Showing /Users/thomashammond89/Test Survey.me/app/views/questions/show.html.erb where line #18 raised:

No route matches {:action=>"new", :controller=>"answers", :survey_id=>[#<Survey id: 2, title: "Test1", created_at: "2014-02-21 17:35:36", updated_at: "2014-02-21 17:35:36">, #<Question id: 2, title: "Question Test1", single_response: true, survey_id: 2, created_at: "2014-02-21 18:59:57", updated_at: "2014-02-21 18:59:57">], :id=>"2", :question_id=>nil, :format=>nil} missing required keys: [:question_id]

Extracted source (around line #18):

15 <li><%= link_to answer.title, [@survey, @question, answer] %></li>
16 <% end %>
17 </ul>
18 <p><%= link_to "Add Answer", new_survey_question_answer_path([@survey,@question]) %></p>

Answer 1

那应该是： new_survey_question_answer_path(@survey, @question)

Rails link_to问题

1 个答案: