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我是初学者的铁轨。我正在构建一个论坛应用程序。它有一个消息传递工具,用户可以私下向其他用户发送消息(不是实时的,就像通知一样)。我已经完成了这个。但我想添加阻止功能,用户可以阻止其他用户,以避免从这些特定用户获取消息。我怎样才能做到这一点?我感谢你的回答。提前致谢。
这是我的代码。
通知控制器如何阻止用户获取消息?
class NotificationsController < ApplicationController
layout "posts"
after_action :read_message, only: [:index]
def index
@notifications = Notification.where(:recipient_id => session[:registered_id]).order("created_at DESC")
end
def new
@user = User.find(session[:user_id])
@notification = @user.notifications.new
end
def create
@user = User.find(session[:user_id])
@notification = @user.notifications.new notification_params
if @notification.save
redirect_to(:controller => "posts", :action => "index")
else
render "new"
end
end
def sent_messages
@notifications = Notification.where(:user_id => session[:user_id]).order("created_at DESC")
end
private
def notification_params
params.require(:notification).permit(:message, :user_id, :recipient_id, :status)
end
def read_message
@notifications = Notification.where(:recipient_id => session[:registered_id]).order("created_at DESC")
@notifications.read_all
end
end
通知模型
class Notification < ActiveRecord::Base
belongs_to :user
validates :message, :presence => true
validates :recipient_id, :presence => true
def self.read_all
Notification.all.update_all(status: true)
end
end
通知迁移
class CreateNotifications < ActiveRecord::Migration
def change
create_table :notifications do |t|
t.text :message
t.integer :user_id
t.string :recipient_id
t.boolean :read, default: false
t.references :user, index: true, foreign_key: true
t.timestamps null: false
end
end
end
**通知#指数**
<div id = "messages_wrapper">
<% @notifications.each do |notification| %>
<div class="<%= notification.status ? 'message_wrapper_read' : 'message_wrapper_unread' %>">
<p><%= notification.message %></p>
<% if notification.user_id %>
<p class = "message_details">from <span><%= notification.user.registered_id %></span></p>
<% end %>
</div>
<% end %>
</div>
你问我们为您设计和实现一个功能,这是堆栈溢出的范围之内。您需要尝试自己编写此功能,然后询问您何时遇到无法自行解决的特定问题。我可以告诉你,你需要一个表格映射阻止者到被阻止者(都是user_id的外键),剩下的应该是相对容易的。 – MarsAtomic