我是 Rails 新手，遇到了一些麻烦。我得到一个
undefined local variable or method `answer'
我的 _answer.html.erb 部分错误。
这是我的answers_controller.rb：
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
def update
respond_to do |format|
if @answer.update(answer_params)
format.html { redirect_to @answer, notice: 'Answer was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: @answer.errors, status: :unprocessable_entity }
end
end
end
def destroy
@answer.destroy
respond_to do |format|
format.html { redirect_to answers_url }
format.json { head :no_content }
end
end
和我的 _answer.html.erb 文件：
<%=div_for(answer) do %>
<div class="questioncontainer">
<p>
<%= answer.body %>
</p>
</div>
<% end %>
如果重要，我的资源：答案嵌套在资源：问题中。
我很感激任何帮助！