Question

为新手问题道歉但是，我在我的消息控制器中引用了以下错误引用消息#new action：

ActiveRecord :: RecordNotFound（无法找到没有ID的用户）：app / controllers / messages_controller.rb：18：在'new＆＃39;

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

我试图在我的messages_controller中加入祖先gem，特别是当我尝试回复用户收件箱中收到的邮件时（index.html.erb）。我知道目前没有ID被传递，但有没有人遇到过类似的问题？代码如下：

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（view）

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 %>

开始GET＆＃34; / messages / new？parent_id = 19＆＃34;在2014-09-27 15:41:18 -0400进行127.0.0.1 由MessagesController处理#new为HTML 参数：{＆＃34; parent_id＆＃34; =＆gt;＆＃34; 19＆＃34;} 消息加载（0.1ms）SELECT＆＃34;消息＆＃34;。* FROM＆＃34;消息＆＃34;在哪里＆＃34;消息＆＃34;。＆＃34; id＆＃34; =？限制1 [[＆＃34; id＆＃34;，19]] 已完成404未在11毫秒内找到

ActiveRecord :: RecordNotFound（无法找到没有ID的用户）： app / controllers / messages_controller.rb：18：在'new＆＃39;

中

呈现/Users/sikendersingh/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_source.erb(0.5ms）呈现/Users/sikendersingh/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb(1.0ms）呈现/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）在救援/布局（13.8ms）内呈现/Users/sikendersingh/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb

Answer 1

我不确定收件人/发件人问题，但我认为您只需将user_id作为参数传递给您。所以link_to将成为：<%= link_to "Reply", new_message_path(:parent_id => @message, :user_id => @message.recipient_id) %>。这将使其在新动作中可用。

带有祖先宝石的Message_controller

1 个答案: