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Rails 3.2，推特应用

解决方案参见：由于 Postgres，无法取消关注用户

目标是这样的形式。

username => User => User.id => followed_id => following? => New or Destroy Relationship

这是我目前必须关注的推特用户。

views/users/buddies.html.erb

<%= form_for @relationship do |f| %>
<%= f.text_field :followed_id %>
<%= f.submit "Add" %>

users_controller.rb

def buddies
@relationship =Relationship.new(params[:followed_id])

relationships_controller.rb

    def create
    @relationship = Relationship.new(params[:relationship])
    @relationship.follower_id = current_user.id

    if @relationship.save
        redirect_to buddies_path, notice: "Phriend added"
        else
        flash[:error] = "Phriend not added";
        redirect_to buddies_path
    end

relationship.rb

class Relationship < ActiveRecord::Base
  attr_accessible :followed_id, :follower_id
   belongs_to :follower, class_name: "User"
   belongs_to :followed, class_name: "User"
   validates :followed_id, presence: true
   validates :follower_id, presence: true

user.rb

class User < ActiveRecord::Base
  has_many :follower_relationships, class_name: "Relationship", foreign_key: "followed_id"
  has_many :followed_relationships, class_name: "Relationship", foreign_key: "follower_id" 
  has_many :followers, through: :follower_relationships
  has_many :followeds, through: :followed_relationships

所以它的作用是：

我有 4 个用户：1：benben，2：nicknick，3：stevesteve，4：petepete

这些是他们的 user_id。这也是他们的追随者/编辑I​​D。

奔奔可以输入“2”，跟随“nicknick”等。

我想要一个可以通过提交用户名来关注和取消关注的系统。

所以我想象了这样的事情..

users_controller.rb

  @user = User.find(params[:username])
      if @user
        if current_user.following? @user.id
          Relationship.new(params[:followed_id])
        else
          Relationship.destroy(params[:followed_id])
        end
      end

user.rb

def following? user
self.followeds.include? user
end

你认为什么会起作用？

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1 回答 1

0

All you have to do is ensure that you are getting the correct user that you want to associate with.

It should not matter if you are searching by id or by name. If you have the active record for that user you can easily associate by just connecting the objects. 

#find by whatever params float your boat
@user = User.find(params[:user])
#add the user to the list of followers
current_user.followers << @user
current_user.save

#or you could delete
@lame_follower = current_user.followers.find(1)
@lame_follower.destroy
于 2013-11-05T00:48:10.900 回答