Question

我正在尝试建立一个评论系统。并使用ajax更新部分。每条评论都属于拍卖。现在我从小时起就有这个错误..并且无法弄明白：

拍卖中的NoMethodError＃show


“undefined method`stringify_keys'for / auctions / 2 / comments / 9”：String

摘录来源（第12行左右）：

   </p>

   <p>
     <%= link_to 'Destroy Comment', auction_comment_path(comment.auction, comment), id: "#{comment.id}_delete", remote: true, method: :delete,  data: { confirm: 'Are you sure?' } do %>
       <button class="btn btn-flat grey lighten-2 grey-text text-darken-2 waves-effect waves-light"><i class="material-icons">delete</i></button>
     <% end %>
     <%= link_to 'Edit Comment', edit_auction_comment_path(comment.auction, comment), remote: true do %>

comments_controller.rb：

class CommentsController < ApplicationController
  before_action :all_comments, only: [:index, :create, :update, :destroy]
  before_action :set_comments, only: [:edit, :update, :destroy]
  respond_to :html, :js

  # New Comment (Form)
  def new
    # find Auction related to new Comment
    @auction = Auction.find(params[:auction_id])
    @comment = Comment.new
    @auction.comments.build
  end

  def index
    # created in order to handle renders from this controller, which produce URL 'root/auctions/:id/comments'
    auction = Auction.find(params[:auction_id])
    redirect_to auction
  end

  # Create Comment
  def create
    # find Auction related to new Comment
    @auction = Auction.find(params[:auction_id])
    @comment = @auction.comments.build(comment_params)
    @comment.user_id = current_user.id
    @comment.save
    redirect_to auction_path(@auction), :notice => "Comment sent"
  end

  # Edit Comment
  def update
    @comment = Comment.find(params[:id])
    @comment.update_attributes(params[:body])
  end

  # Delete Comment
  def destroy
    @comment = Comment.find(params[:id])
    @auction = comment.auction
    @comment.destroy
    #redirect_to auction_path(@auction), :notice => "Comment deleted"
  end

  private
  def all_comments
    @comments = Comment.all
  end

  def set_comments
    @auction = Auction.find(params[:auction_id])
    @comment = @auction.comments.find(params[:id])
  end

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

视图/拍卖/ show.html.erb：

    <h2>Questions & Answers</h2>
  </div>
  <div class="col s12">
    <%= link_to new_auction_comment_path(@auction), remote: true do %>
        <button class="btn">New Question</button>
    <% end %>
  </div>
</div>
<div class="row">
  <div class="col s12" id="comment-form" style="display:none;"></div>
</div>

<div class="row">
  <div class="col s12" id="comments"><%= render @auction.comments %></div>
</div>

视图/评论/ _comment.html.erb

 <p>
  <strong>Commenter:</strong>
  <%= comment.user.name %>
</p>

<p>
  <strong>Comment:</strong>
  <%= comment.body %>
</p>

<p>
  <%= link_to 'Destroy Comment', auction_comment_path(comment.auction, comment), id: "#{comment.id}_delete", remote: true, method: :delete,  data: { confirm: 'Are you sure?' } do %>
    <button class="btn btn-flat grey lighten-2 grey-text text-darken-2 waves-effect waves-light"><i class="material-icons">delete</i></button>
  <% end %>
  <%= link_to 'Edit Comment', edit_auction_comment_path(comment.auction, comment), remote: true do %>
      <button>Edit</button>
  <% end %>
</p>

视图/评论/ _form.html.erb

<%= simple_form_for [@auction, @auction.comments.build], remote: true do |f| %>
      <%= f.input  :body %>
      <%= f.button :submit %>
<% end %>

NoMethodError：未定义的方法`stringify_keys'for“/ auctions / 2 / comments / 9”：String Rails

0 个答案: