關注請求Ruby on Rails

Question

我已經實現了關注者/關注關係，我想擴展功能，即。在我目前的實現中，用戶'A'在用戶'B'之後沒有用戶'B'的確認。我想讓用戶'A'向用戶'B'發送請求，然後用戶'B'接受或拒絕它。希望它像Instagram模型而不是Facebook模型[用戶A向用戶B發送跟隨請求。如果用戶B接受請求，則用戶A跟隨用戶B並且用戶B不跟隨用戶A，這樣做是用戶B必須發送向用戶A的請求]。

我的文件：

schema.rb

class CreateFollowJoinTable < ActiveRecord::Migration 
    def change 
    create_table 'follows' do |t| 
     t.integer 'following_id', :null => false 
     t.integer 'follower_id', :null => false 
     t.boolean :accepted, default: false 

     t.timestamps null: false 
    end 

    add_index :follows, :following_id 
    add_index :follows, :follower_id 
    add_index :follows, [:following_id, :follower_id], unique: true 
    end 
end 

應用程序/模型/ follow.rb

class Follow < ActiveRecord::Base 
    belongs_to :follower, foreign_key: 'follower_id', class_name: 'User' 
    belongs_to :following, foreign_key: 'following_id', class_name: 'User' 
end 

應用程序/模型/ user.rb

has_many :follower_relationships, foreign_key: :following_id, class_name: 'Follow' 
has_many :followers, through: :follower_relationships, source: :follower 

has_many :following_relationships, foreign_key: :follower_id, class_name: 'Follow' 
has_many :following, through: :following_relationships, source: :following 

def follow(user_id) 
    following_relationships.create(following_id: user_id) 
end 

def unfollow(user_id) 
    following_relationships.find_by(following_id: user_id).destroy 
end 

路線.rb

post ':user_name/follow_user', to: 'relationships#follow_user', as: :follow_user 
post ':user_name/unfollow_user', to: 'relationships#unfollow_user', as: :unfollow_user 

應用程序/控制器/ relationships_controller.rb

class RelationshipsController < ApplicationController 
    def follow_user 
    @user = User.find_by! user_name: params[:user_name] 
    if current_user.follow @user.id 
     respond_to do |format| 
     format.html { redirect_to root_path } 
     format.js 
     end 
    end 
    end 

    def unfollow_user 
    @user = User.find_by! user_name: params[:user_name] 
    if current_user.unfollow @user.id 
     respond_to do |format| 
     format.html { redirect_to root_path } 
     format.js 
     end 
    end 
    end 
end 

Answer 1

首先你需要添加status:boolean default:false您following_relationships類

，那麼你需要做一個控制器，通知跟隨的用戶一個新的追隨者，

然後你需要讓另一個控制器爲後面的用戶編輯從false狀態爲真

像

def accept_follower 
    @relationships = current_user.following_relationships.find_by(follower_id: params[:follower_id]) 
    @relationships.update_attributes(active: true) 
end 

def ignore_follower 
    current_user.following_relationships.find_by(follower_id: params[:follower_id]).destroy 
end 

那麼你需要修復你約跟隨查詢/以下只能選擇其中狀態=真

has_many :followers, -> { where(status: true) } through: :follower_relationships, source: :follower