0

为新手问题道歉，但是，我在消息控制器中收到以下错误，引用 message#new 操作：

ActiveRecord::RecordNotFound（找不到没有 ID 的用户）：app/controllers/messages_controller.rb:18:in `new'

@recipient = User.find(params[:user_id])

我正在尝试将祖先 gem 合并到我的 messages_controller 中，特别是当我尝试回复在用户收件箱 (index.html.erb) 中收到的消息时。我知道目前没有通过身份证，但是有人遇到过类似的问题吗？下面的代码：

class MessagesController < ApplicationController

  def index
    @messages = current_user.to_messages
  end

  def outbox
    type = (params[:type] && params[:type] == "sent" ) ? "from_messages" : "to_messages"
    @messages = current_user.from_messages
  end

  def show
    @message = Message.find params[:id]
  end

  def new
    @message = Message.new(:parent_id => params[:parent_id])
    @recipient = User.find(params[:user_id])
  end

  def create
    @message = Message.new message_params
    @message.sender_id = current_user.id
    if @message.save
      flash[:success] = "Your message has been sent!"
      redirect_to users_path
    else
      flash[:failure] = "Please try again."
      redirect_to users_path
    end
  end

  def destroy
    @message = Message.find(params[:id])
    @message.destroy
    redirect_to messages_path
  end

  private

  def message_params
    params.require(:message).permit(:content, :sender_id, :recipient_id, :parent_id)
  end

end

show.html.erb（视图）

From: <%= link_to @message.recipient.first_name + " " + @message.recipient.last_name, user_path(@message.recipient.id) %>,
To: <%= @message.sender.first_name + " " + @message.sender.last_name %>, 
Message: <%= @message.content %>

<% if @message.recipient_id == current_user.id %>
  <%= link_to "Reply", new_message_path(:parent_id => @message) %>
<% end %>

在 2014-09-27 15:41:18 -0400 开始 GET "/messages/new?parent_id=19" for 127.0.0.1 由 MessagesController#new 作为 HTML 参数处理：{"parent_id"=>"19"} 消息加载(0.1ms) SELECT "messages".* FROM "messages" WHERE "messages"."id" = ? LIMIT 1 [["id", 19]] Completed 404 Not Found in 11ms

ActiveRecord::RecordNotFound（找不到没有 ID 的用户）：app/controllers/messages_controller.rb:18:in `new'

渲染 /Users/sikendersingh/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.5ms) 渲染 /Users/sikendersingh/.rvm /gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.0ms) 渲染/Users/sikendersingh/.rvm/gems/ruby-2.1 .2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.1ms) 渲染/Users/sikendersingh/.rvm/gems/ruby-2.1.2/gems/actionpack -4.1.4/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb 在救援/布局中（13.8 毫秒）

4

1 回答 1

0

我不确定收件人/发件人问题，但我认为您只需要从您的视图中将 user_id 作为参数传递。所以 link_to 会变成：<%= link_to "Reply", new_message_path(:parent_id => @message, :user_id => @message.recipient_id) %>。这将使其在新操作中可用。

于 2014-09-28T00:20:49.843 回答