Question

提交答案时，我收到此错误：

ActiveRecord::RecordNotFound (Couldn't find Question with ID=answer):
  app/controllers/questions_controller.rb:6:in `show'

根据我的理解，我或者从表单或者传递参数时出错了没有在我的控制器中正确定义它。

非常感谢帮助找到这个错误，提前谢谢！

Questions_Controller：

class QuestionsController < ApplicationController
  def index
  end

  def show
      @question = Question.find(params[:id])
      @choices = @question.choices
  end

  def answer
      @choice = Choice.find(:first, :conditions => { :id => params[:id] })
      @answer = Answer.create(:question_id => @choice.question_id, :choice_id => @choice.id)

      if Question.last == @choice.question
        render :action => "thank_you"
      else
        question = Question.find(:first, :conditions => { :position => (@choice.question.position + 1) })
        redirect_to question_path(:id => question.id)
      end
   end
end

views / questions / show.html.erb：

<div data-role="content">
  <div align="center">
    <h3><%= @question.question %></h3>
  </div>
  <br><br>
  <ul data-role="listview">
    <% @choices.each_with_index do |c, i| %>
      <% i = i + 1 %>
      <li data-theme="c">
        <%= link_to "#{i}. #{c.choice}", answer_questions_path(:id => c.id) %>
      </li>
    <% end %>
  </ul>
</div>

:: EDIT ::

当我尝试选择一个选项＆amp;在第一个问题上提交答案。

Started GET "/questions/1" for 127.0.0.1 at Thu Dec 01 01:38:36 -0500 2011
  Processing by QuestionsController#show as 
  Parameters: {"id"=>"1"}
  SQL (0.6ms)   SELECT name
 FROM sqlite_master
 WHERE type = 'table' AND NOT name = 'sqlite_sequence'
  Question Load (0.3ms)  SELECT "questions".* FROM "questions" WHERE "questions"."id" = 1 LIMIT 1
  Choice Load (10.8ms)  SELECT "choices".* FROM "choices" WHERE ("choices".question_id = 1)
Rendered questions/show.html.erb within layouts/application (28.8ms)
Completed 200 OK in 424ms (Views: 118.0ms | ActiveRecord: 11.6ms)


Started GET "/questions/answer?id=1" for 127.0.0.1 at Thu Dec 01 01:38:38 -0500 2011
  Processing by QuestionsController#show as 
  Parameters: {"id"=>"answer"}
  Question Load (0.1ms)  SELECT "questions".* FROM "questions" WHERE "questions"."id" = 0 LIMIT 1
Completed   in 10ms

ActiveRecord::RecordNotFound (Couldn't find Question with ID=answer):
  app/controllers/questions_controller.rb:6:in `show'

希望这有帮助。

Answer 1

我最好的猜测是你没有正确设置路线。假设您正在使用Rails 3并且您正在使用资源，则需要添加以下内容：

resources :questions do 
  member do
     put 'answer'
  end
end

这将创建类似/questions/#{id}/answer的路线。

答案不是HTTP动词，因此在您的路线中使用resources不会创建指向answer行动的路线。

根据评论进行编辑：

首先，如果您要更新或创建数据，则应使用put或post。使用get修改服务器上的数据是个坏主意。其次，我假设你会在每个问题上做一个答案。如果是这种情况，您应该对成员而不是集合执行操作。此外，在您的回答操作中，您有params[:id]。如果您尝试对集合而不是成员执行操作，则不会获得params[:id]。

Rails：找不到ID为的#controller

1 个答案: