无法找到ID为的控制器

无法找到ID为的控制器

本文介绍了Rails:无法找到ID为的控制器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

当提交答案时,我收到此错误:

  ActiveRecord :: RecordNotFound ):
app / controllers / questions_controller.rb:6:in`show'

我理解我或者通过传递一个参数从窗体或
didn`t在我的控制器中正确定义错误。



感谢一些帮助找到

  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)

如果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


$ b b

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 ::



发生当我尝试选择一个选择&

 在Thu 12月01日开始为127.0.0.1 GET/ questions / 1 :38:36 -0500 2011 
由QuestionsController处理#show as
参数:{id=>1}
SQL(0.6ms)SELECT name
FROM sqlite_master
WHERE type ='table'AND NOT name ='sqlite_sequence'
问题载入(0.3ms)SELECTquestions。* FROMquestionsWHEREquestions。id= 1 LIMIT 1
选择加载(10.8ms)SELECTchoices。* FROMchoicesWHERE(choices.question_id = 1)
在布局/应用程序
完成200 OK在424ms(视图:118.0ms | ActiveRecord:11.6ms)


在Thu的127.0.0.1开始GET/ questions / answer?id = 1 Dec 01 01:38:38 -0500 2011
处理QuestionController#show as
参数:{id=>answer}
问题负载。* FROMquestionsWHEREquestions。id= 0 LIMIT 1
在10ms内完成

ActiveRecord :: RecordNotFound(无法找到ID = answer的问题):
app / controllers / questions_controller.rb:6:in`show'

解决方案

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

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


$ b b

这将创建一个路径,例如 / questions /#{id} / answer



答案不是HTTP动词,因此在路线中使用资源不会创建到 answer 动作。



根据评论进行编辑:



,如果您要更新或创建数据,则应使用 put post 。用 get 修改服务器上的数据是一个坏主意。其次,我假设你将对每个问题做一个答案。如果是这样,您应该对成员执行操作,而不是集合。此外,在您的回答操作中,您还有 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]


When submitting an answer I get this error:

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

From what I understand I either made a error with passing an argument from the form ordidn`t define it correctly in my controller.

Would appreciate some help finding this bug, thanks in advance!

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::

This happens when I try to select a choice & submit an answer while on the first question.

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'

Hope this helps.

解决方案

My best guess is that you don't have a route correctly setup. Assuming that you're using Rails 3 and you're using resources, you need to do add the following:

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

This will create a route like /questions/#{id}/answer.

Answer is not an HTTP verb, so using resources in your routes will not create a route to your answer action.

Edit based on comment:

First, if you're updating or creating data, you should use put or post. It's a bad idea to modify data on the server with a get. Secondly, I assume that you would be doing an answer per question. If that is the case, you should do the action on a member, not a collection. Also, in your answer action, you have params[:id]. You won't get params[:id] if you try to do an action on a collection rather than a member.

这篇关于Rails:无法找到ID为的控制器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-15 06:23