要獲得軌道上的紅寶石單選按鈕值

我創建了一個測驗和顯示，每頁作爲部分形式提問一次，當我使用創建時，我想要創建之前檢查的單選按鈕的值。當我使用PARAMS [：答案]在我的控制器旁邊，則返回null ..誰能幫助我出去找，我提前要獲得軌道上的紅寶石單選按鈕值

<div class = "y"> 
<% form_for @answer do |f|%> 
<div class = "label_field_pair"> 
<label for "questions"> 
    <%= @ans.ques %> 
</label> 
</div> <br> 
<div class = "label_field_pair2"> 
<label for "options"> 
    <div id = "option-1"> 
    <%= radio_button_tag "answer", "#{@ans.id}ans1"%><%= @ans.ans1 %> 
    </div><br> 
    <div id = "option-2"> 
    <%= radio_button_tag "answer", "#{@ans.id}ans2"%><%= @ans.ans2 %> 
    </div><br> 
    <div id = "option-3"> 
    <%= radio_button_tag "answer", "#{@ans.id}ans3"%><%= @ans.ans3 %> 
    </div><br> 
    <div id = "option-4"> 
    <%= radio_button_tag "answer", "#{@ans.id}ans4"%><%= @ans.ans4 %> 
    </div><br> 
</label> 
    </div> 
<div class="next"> 
    <%= link_to_remote "Next", 
    :before => "Element.show('loader')", 
    :success => "Element.hide('loader')", 
    :url=>{:controller=>"answers", :action=>"next"}, 
    :with => "'&passed_question=#{@ans.id}&'+'&exam_group_id=#{@exam_group.id}&'" 
    %> 
<% end %> 
</div> 
<% end %> 
</div>

和控制器檢查

感謝單選按鈕的值

def next 
@user = current_user 
@student = Student.find_by_admission_no(@user.username) 
@exam_group = ExamGroup.find_by_id(params[:exam_group_id]) 
@answer = Answer.new(params[:ans]) 
@answer.answer = params[:answer] 
@answer.exam_group_id = @exam_group.id 
@answer.user_id = @user.id 
passed_question = params[:passed_question] 
@answer.questions_id = passed_question 
if @answer.save 
    @ans = Question.find_by_id(left_random, :conditions => ['id not in (?) && exam_group_id=?',answered, @exam_group]) 
    render(:update) do |page| 
     page.replace_html 'main', :partial => 'ans', :object => @ans 
    end 
end 
end 
def ans 
@user = current_user 
@student = Student.find_by_admission_no(@user.username) 
@exam_group = ExamGroup.find(params[:exam_group_id]) 
@tot_ans = answered.count 
@last_ques = (Question.count-1) 
render(:update) do |page| 
    page.replace_html @ans, :partial => 'ans', :object => @ans 
end 
end

來源

2013-10-15 Raja Sekar

你的form_for指定'@ answer'參數，但單選按鈕的'@ ans'一部分。 – Daiku

看到你的參數將是一個很大的幫助:) –

http://stackoverflow.com/questions/7140176/saving-radio-buttons-values-in-rails –

你需要你的單選按鈕，輸入之前的「F」是一個開始，但你的控制器代碼看起來相當低效的第一眼：

<%= f.radio_button :answer, "#{@ans.id}ans1" %>

來源

2013-10-15 12:39:39

其實link_to_remote接下來是後並創建一個答案數據庫在（2013-10-15處爲19時51分25秒127.0.0.1）ANS在我的開發日誌處理返回null .... AnswersController#next

[POST] Parameters: {"passed_question"=>"3", "action"=>"next", "authenticity_token"=>"EjReUuUVAbRJ6s3k7Tj/pS7s2ENUUgTvyaiiRz9/IF8=", "exam_group_id"=>"1", "controller"=>"answers"}

在這個

我想回答這是在單選按鈕賦予得到的結果

來源

2013-10-15 16:59:28

要獲得軌道上的紅寶石單選按鈕值

回答

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