如何通過從視圖中的數據，以在軌

Question

控制器我想具體化是CURRENT_USER回答一個問題的功能。爲了實現它，我需要將question_id數據從視圖傳遞給控制器​​。 特別地，

1）從視圖/舍/ popular.html.erb傳遞question_id到answers_controller.rb

2）從answers_controller.rb傳遞question_id到意見/答案/ new.html.erb

3）將answers_id從views/answers/new.html.erb傳遞給answers_controller.rb

我想將answers_id傳遞給answers_controller.rb的hogehoge。你能告訴我該怎麼做嗎？

#app/controllers/homes_controller.rb 
class HomesController < ApplicationController 
    def popular 
    @questions = Question.all 
    @questions.each do |question| 
     @answer = question.answers.highest 
    end 
    end 
end 

#app/views/homes/popular.html.erb 
<div class="row"> 
    <div class="row"> 
    <h3>Popular</h3> 
    <% @questions.each do |question| %> 
     <li><%= link_to question.body, new_answer_path ,question_id:question.id%></li> 
    <% end %> 
    </div> 
</div> 

#app/controllers/answers_controller.rb 
class AnswersController < ApplicationController 
    def new 
    @answer = Answer.new 
    end 

    def create 
    @answer = current_user.answers.create(answer_params) 
    if @answer.save 
     redirect_to root_url 
    else 
     render 'new' 
    end 
    end 

    private 
    def answer_params 
     hogehoge 
    end 
end 

#app/views/answers/new.html.erb 
<%= form_for @answer, :url => answers_path do |f| %> 
    <div class="page-header"> 
    <h2>Please answer</h2> 
    </div> 
    <div class="span6 offset3"> 
    <%= f.label :body %><br> 
    <%= f.text_field :body %> 
    </div> 
    <%= f.submit 'post', class: 'btn btn-primary' %> 
<% end %> 

Answer 1

要從視圖的數據發送到控制器，你可以使用查詢字符串，你在popular.html.erb和答案控制器，你在params[:question_id]獲取數據使用，使用實例變量在新的行動@question = params[:question_id]和answer/new.html使用隱藏字段f.hidden_field :@question發送數據。