尽管我遇到了麻烦,但应该很容易回答的快速问题:
我有一个简单的 Rails 应用程序,带有一个消息('intro')选项卡,显示发送和接收的消息('intro')。我将消息从用户适当地路由到用户,并且消息的内容在用户收件箱中显示良好。但是,我无法在消息本身旁边显示与消息关联的用户的名称
我有一个用户模型:
class User < ActiveRecord::Base
attr_accessible :name, :email, :one_liner, :password, :password_confirmation
has_secure_password
has_many :sent_intros, foreign_key: "sender_id", dependent: :destroy, class_name: "Intro"
has_many :received_intros, foreign_key: "receiver_id", dependent: :destroy, class_name: "Intro"
has_many :receivers, through: :sent_intros, source: :receiver
has_many :senders, through: :received_intros, source: :sender
...
,一个介绍(消息)模型:
class Intro < ActiveRecord::Base
attr_accessible :content, :receiver_id, :sender_id
belongs_to :sender, class_name: "User"
belongs_to :receiver, class_name: "User"
...
这是用户控制器的相关代码:
class UsersController < ApplicationController
before_filter :signed_in_user, only: [:index, :edit, :update, :destroy]
before_filter :correct_user, only: [:edit, :update]
before_filter :admin_user, only: :destroy
def show
@user = User.find(params[:id])
@intro = Intro.find(params[:id])
@sent_intros = current_user.sent_intros.paginate(page: params[:page])
@received_intros = current_user.received_intros.paginate(page: params[:page])
end
...
我的 .erb 显示页面:
<% provide(:title, @user.name) %>
<div class="row">
<aside class="span4">
<section>
<h1>
<%= @user.name %>
</h1>
</section>
</aside>
<div class="span8">
<% if@user.received_intros.any? %>
<h3>Received intros (<%= @user.received_intros.count %>)</h3>
<ol class="intros">
<%= render @received_intros %>
</ol>
<%= will_paginate @received_intros %>
<% end %>
<% if@user.sent_intros.any? %>
<h3>Sent intros (<%= @user.sent_intros.count %>)</h3>
<ol class="intros">
<%= render @sent_intros %>
</ol>
<%= will_paginate @sent_intros %>
<% end %>
</div>
</div>
所以我关心这个页面的 <%= render @received_intros %> 和 <%= render @sent_intros %> 行
目前,它显示以下内容(没有关联用户的介绍内容):
如何将这些用户名添加到各自的介绍中?谢谢!