Question

如果消息视图中存在问题，我需要帮助包括答案表单。我在第NameError: undefined local variable or method `question'行收到= form_for(:question, :url => question_answers_path(question)) do |f|。

如果它有助于消息来自Conversations控制器。

/messages/_form.html.slim：

| if question = @message.question.present?
= form_for(:question, :url => question_answers_path(question)) do |f|
  ul
    li= f.text_area :answer,  placeholder=('Please add your response...') 
    li= f.text_field :recipient_id,  placeholder=('Please add your name...') 
    li= f.submit "Respond"

    | else
    = form_for :message, url: [:reply, conversation] do |f|
        = f.text_area :body, rows: 4, style: 'width: 95%'
        br
        = f.submit "Send Message", class: 'btn btn-primary'
        = submit_tag 'Clear Reply Box', type: :reset, class: 'btn btn-danger'

答案控制器：

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

  def show
    @question = Question.find(params[:question_id])
    @answer = Answer.find(params[:id])
  end

  def create
    @question = Question.find(params[:question_id])
    if @question.update_attributes(params[:question])
      redirect_to questions_path
    else
      render :new
    end
  end
end

问题控制员：

   def show
      @question = Question.find(params[:id])
      @questions = Question.order("created_at DESC")
      respond_with(@questions)
    end

    def create
      @question = Question.new(params[:question])
      if @question.save
        @message = current_user.send_message(@question.recipient, @question.question, "You have a question from #{@question.sender_id}") 
        redirect_to :back, notice: 'Your question was saved successfully. Thanks!'
      else
        render :new, alert: 'Sorry. There was a problem saving your question.'
      end
    end
  end

在“answers”文件夹中工作的原始表单代码（我试图让以下代码在“messages”文件夹中工作）：

<%= form_for(:question, :url => question_answers_path(@message.question)) do |f| %>
    <ul>
        <li><%= f.text_area :answer, {:placeholder => 'Please add your response...'}%></li>
        <li><%= f.text_field :recipient_id, {:placeholder => 'Please add your name...'} %></li>
        <li><%= f.submit "Respond" %></li>
        </ul>
        <% end %>

路线：

  resources :questions do
    resources :answers, only: [:new, :create]
  end

Answer 1

您应该尝试更新代码：

- question = @message.question # will avoid making multiple calls to db for same record
| if question.present?
= form_for(:question, :url => question_answers_path(question)) do |f|

Answer 2

问题是您将question传递给路径助手，但未定义。您应该使用@message.question：

question_answers_path(@message.question)

NameError未定义的局部变量或方法

2 个答案: