未定義的變量或方法添加問題的答案

Question

我試圖添加問題的答案。每個問題都有答案。我展示他們的評論頁面上，通過諧音，除了我不斷收到此錯誤：

undefined local variable or method `answer' 

這裏是我的answers_controller.rb的一部分

class AnswersController < ApplicationController 
before_action :set_answer, only: [:show, :edit, :update, :destroy] 


def index 
    @question = Question.find params[:question_id] 
    @question.answers 
end 


def show 
end 


def new 
    @question = Question.find params[:question_id] 
end 


def edit 
end 


def create 
    @question = Question.find(params[:question_id]) 
    @answer = @question.answers.create(answer_params) 

    respond_to do |format| 
    if @answer.save 
    format.html { redirect_to @comment, notice: 'Answer was successfully created.' } 
    format.json { render action: 'show', status: :created, location: @answer } 
    else 
    format.html { render action: 'new' } 
    format.json { render json: @answer.errors, status: :unprocessable_entity } 
    end 
    end 
end 

這裏是我的_question.html.erb部分地方答案部分被稱爲：

<%=div_for(question) do %> 
    <div class="questioncontainer"> 
    <p> 
<%= question.body %> 

    <%= render :partial => @question.answers %>  

    <% if current_user == @comment.user %> 
    <div class="answercontainer"> 
    <%= link_to 'Answer', new_question_answer_path(question)%> 
</div> 


</div> 
</p> 

<% end %> 
<% end %> 

末，這裏是我的_answer.html.erb部分：

<%=div_for(answer) do %> 
    <div class="questioncontainer"> 
    <p> 
<%= answer.body %> 
    </p> 
    </div> 
    <% end %>  

感謝您的幫助:)

Answer 1

通answer地方，通過locals: {answer: @answer}

Answer 2

使用

<%= render question.answers %> 

，而不是

<%= render :partial => @question.answers %> 

此處瞭解詳情：http://guides.rubyonrails.org/layouts_and_rendering.html#using-partials