Question

我关注guide.ruby.org，但有些错误我不知道如何解决。

class List < ActiveRecord::Base
    has_many :comments, dependent: :destroy
end

`

class Comment < ActiveRecord::Base
  belongs_to :list
end

`

class CommentsController < ApplicationController
  before_action :set_list

  def index
    @comments = @list.comments.order('created_at DESC')
  end

  def create
    @comment = @list.comments.create(comment_params)
    @comment.user_id = current_user.id

    if @comment.save
        respond_to do |format|
            format.html { redirect_to list_path(@list)  }
            format.js
        end
    else
      flash[:alert] = 'Check the comment form, something went wrong.'
      render root_path
    end
  end

  private

  def comment_params
    params.require(:comment).permit(:content)
  end

  def set_list
    @list = List.find(params[:list_id])
  end

end

`

# gem 'simple_form'
# gem 'foundation-rails'
    <div class="comment-form">
        <%= simple_form_for [@list, @list.comemnts.build] do |f| %>
            <%= f.textarea :content, placeholder: 'add comment...',
                               class: "comment_content",
                               id: "comment_content_#{list.id}",
                               data: { list_id: "#{list.id}",
                               value: "#{list.comments.count}" } %>

           <%=f.button :submit, 'New Comment', class: 'comment-submit-button' %>
        <% end %>

    </div>

但是我得到了错误，当我从指南步入一步时，一切都好，这是错误信息：

未定义的方法`comemnts＆＃39;对于＃

有什么不对吗？谢谢回答我。

Answer 1

这是一个简单的拼写错误，我可以看到。

@list.comemnts.build

应该是

@list.comments.build

Answer 2

视图中有拼写错误 - 应该是

@list.comments.build

不是

@list.comemnts.build

错误：未定义的方法`comemnts＆＃39;对于

2 个答案: