Question

我们希望在我们网站上输入的每个微博具有Sender和Receiver属性。邮件的发件人，以及邮件的发送者。

换句话说，在每个用户看到的每个微博上，我们想要内容，并且只是在帖子内容的上方或下方，我们希望显示发送者和接收者。我们还希望用户能够点击发件人或收件人，并直接链接到该个人资料。

我们怎样才能做到这一点？我们对rails很新，并且认为需要在Micropost模型中进行添加才能使此更改生效。或者应该在MicropostsController中进行更改吗？

Micropost模型：

class Micropost < ActiveRecord::Base
  attr_accessible :content, :belongs_to_id

  belongs_to :user


  validates :content, :presence => true, :length => { :maximum => 240 }
  validates :user_id, :presence => true

  default_scope :order => 'microposts.created_at DESC'

    # Return microposts from the users being followed by the given user.
    scope :from_users_followed_by, lambda { |user| followed_by(user) }

    private

      # Return an SQL condition for users followed by the given user.
      # We include the user's own id as well.
      def self.followed_by(user)
        following_ids = %(SELECT followed_id FROM relationships
                      WHERE follower_id = :user_id)
        where("user_id IN (#{following_ids}) OR user_id = :user_id",
              { :user_id => user })
    end
  end

MicropostsController：

class MicropostsController < ApplicationController
  before_filter :authenticate, :only => [:create, :destroy]

  def create

    @micropost  = current_user.microposts.build(params[:micropost])
    if @micropost.save
      flash[:success] = "Posted!"
      redirect_to current_user
    else
     @feed_items = []
     render 'pages/home'
    end
  end


  def destroy
      @micropost.destroy
      redirect_to root_path
    end
end

Answer 1

为了消除一些混乱并使其变得更加困难，我会选择：

class Micropost < ActiveRecord::Base
  belongs_to :sending_user, :class_name=>"User", :foreign_key=>"user_id"
  belongs_to :receiving_user, :class_name=>"User", :foreign_key=>"belongs_to_id"
end

这将在您的视图中为给定的Micropost对象“@micropost”提供类似的内容：

 <%= link_to(@micropost.sending_user.username, user_path(@micropost.sending_user)) %>

 <%= link_to(@micropost.receiving_user.username, user_path(@micropost.receiving_user)) %>

*这假定了有关用户对象和路由的几个方面，但应该让您走上正确的道路。

在每个微博上显示发件人和接收者用户配置文件

1 个答案: