向 RoR 消息收件箱系统添加通知 [英] Add notification to RoR messaging inbox system

查看：65
本文介绍了向 RoR 消息收件箱系统添加通知的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有一个带有实习消息系统的 rails 应用程序.用户可以向其他用户发送消息.示例:用户 1 发送消息用户 2 可以反之亦然.

一切正常.但我想用通知功能升级这个系统.我想输入通知类型:

1) 在导航栏上2) 邮寄

问题:我不知道我该怎么做.

你能帮我吗?

对话表

class CreateConversations <ActiveRecord::迁移定义改变create_table : 对话做 |t|t.integer :sender_idt.integer :recipient_idt.时间戳结尾结尾结尾

消息表.在这段代码中，我有一个布尔值 :read.我认为解决方案可以在这里.你怎么看?

class CreateMessages 错误的t.时间戳结尾结尾结尾

conversation.rb

类对话:sender_id, class_name: '用户'归属于:收件人，:外国密钥 =>:recipient_id, class_name: '用户'has_many :messages, 依赖: :destroyvalidates_uniqueness_of :sender_id, :scope =>:recipient_id范围:之间，->(sender_id,recipient_id) 做where("(conversations.sender_id = ? AND对话.recipient_id =?) OR (conversations.sender_id = ? AND对话.recipient_id =?)", sender_id,recipient_id,recipient_id, sender_id)结尾结尾

消息.rb

类消息

conversations_controller.rb

class ConversationsController <应用控制器before_action :authenticate_user!# 获取/对话# 获取/conversations.json定义索引@users = User.all# 限制至少有一条消息的对话，并按上次更新排序@conversations = Conversation.joins(:messages).uniq.order('updated_at DESC')结尾# POST/对话# POST/conversations.json定义创建如果 Conversation.between(params[:conversation][:sender_id], params[:conversation][:recipient_id]).present?@conversation = Conversation.between(params[:conversation][:sender_id], params[:conversation][:recipient_id]).first别的@conversation = Conversation.create!(conversation_params)结尾重定向到会话消息路径(@conversation)结尾私人的# 使用回调在动作之间共享公共设置或约束.定义对话参数params.require(:conversation).permit(:sender_id,:recipient_id)结尾结尾

messages_controller.rb

class MessagesController <应用控制器before_action 做@conversation = Conversation.find(params[:conversation_id])结尾定义索引@messages = @conversation.messages如果@messages.length >10@over_ten = 真@messages = @messages[-10..-1]结尾如果参数[:m]@over_ten = 假@messages = @conversation.messages结尾如果@messages.last如果@messages.last.user_id != current_user.id@messages.last.read = true;结尾结尾@message = @conversation.messages.new结尾定义新@message = @conversation.messages.new结尾定义创建@message = @conversation.messages.new(message_params)如果@message.save重定向到会话消息路径(@conversation)结尾结尾私人的定义消息参数params.require(:message).permit(:body,:user_id)结尾结尾

/conversations/index.html.erb

<h3>邮箱</h3><div class="ui list"><div class="item"><% @conversations.each do |conversation|％＞<% 如果对话.sender_id == current_user.id ||session.recipient_id == current_user.id %><%如果conversation.sender_id == current_user.id %><% 收件人 = User.find(conversation.recipient_id) %><%其他%><% 收件人 = User.find(conversation.sender_id) %><%结束%>Conversation avec <%= link_to receiver.prenom,conversation_messages_path(conversation)%><%结束%><%结束%>

<div class="ui 段"><h3>所有用户</h3><div class="ui list"><% @users.each 做 |user|％＞<% if user.id != current_user.id %><div class="item"><%= user.prenom %><%= button_to 'Message me',conversations_path(conversation: { sender_id: current_user.id, receiver_id: user.id }), class: 'btn btn-primary m-t' %>

<%结束%><%结束%>

messages/index.html.erb

<% if @over_ten %><%= link_to '显示上一个', "?m=all" %><%结束%><div class="ui 段"><% @messages.each 做 |message|％＞<% if message.body %><% user = User.find(message.user_id) %><div class="item"><div class="内容"><div class="header"><strong><div class="imageavatarmessage"><%= image_tag user.avatar(:thumb), class:"imageavatarmessage" %></div><%= user.prenom %></strong><%= message.message_time %></div><div class="list"><div class="item"><i class="直角三角形图标"></i><%= message.body %>

<%结束%><%结束%>

<%= form_for [@conversation, @message], html: {class: "ui reply form"} do |f|％＞

<%= f.text_area :body, class: "form-control" %>

<%= f.text_field :user_id, value: current_user.id, type: "hidden" %><div><%= f.submit "添加回复", class: "ui 蓝色标记的提交图标按钮" %>

<%结束%>

解决方案

我建议您阅读本教程以构建漂亮的通知系统https://www.devwalks.com/lets-build-instagram-part-6-notifications/

基本上，您必须创建新模型，使用您的 Message 模型设置依赖项并集成到控制器

对于电子邮件通知，它甚至更简单.只需创建新邮件程序并在 messages_controller

中的创建操作上触发它

def 创建@message = @conversation.messages.new(message_params)如果@message.saveSendMessageMailer.new_message(@message).deliver_later重定向到会话消息路径(@conversation)结尾结尾

要创建邮件程序，您应该执行以下操作:

rails g mailer SendMessage

转到/app/mailers/send_message_mailer.rb 并添加动作，与控制器的建筑类型相同

def new_message(message)@消息 = 消息邮件(至:@message.user.email，主题:'嘿！这是你错过的')结尾

另外，用erb代码创建一个视图(电子邮件模板)和代码

app/views/send_message_mailer/new_message.html.erb

我不会深入研究这个，我想您可以弄清楚如何传递间隔(假设用户在线或已阅读消息时不发送)并区分接收者/发送者用户

再一次，Mailer 是相同类型的控制器.您可以根据需要传递任意数量的参数，并在邮件控制器和视图中使用模型嵌套

邮递员

def new_message(message, sender, receiver)结尾

控制器

SendMessageMailer.new_message(@message, @message.user, params[:receiver]).deliver_later

I have a rails app with intern messaging system. User can send message to other user. Example : User 1 send message User 2 can respond viceversa.

All works perfectly. But I want to upgrade this system with notfications functionnality. I want to type of notifications :

1) On navbar 2) By mail

Problem : I dont know how i can do this.

Can you help me ?

Conversations table

class CreateConversations < ActiveRecord::Migration
 def change
  create_table :conversations do |t|
   t.integer :sender_id
   t.integer :recipient_id
   t.timestamps
  end
 end
end

Messages table. In this code I have a boolean :read. I think solution can be here. What do you think about this ?

class CreateMessages < ActiveRecord::Migration
 def change
  create_table :messages do |t|
   t.text :body
   t.references :conversation, index: true
   t.references :user, index: true
   t.boolean :read, :default => false
   t.timestamps
  end
 end
end

conversation.rb

class Conversation < ActiveRecord::Base
 belongs_to :sender, :foreign_key => :sender_id, class_name: 'User'
 belongs_to :recipient, :foreign_key => :recipient_id, class_name: 'User'
has_many :messages, dependent: :destroy
validates_uniqueness_of :sender_id, :scope => :recipient_id
scope :between, -> (sender_id,recipient_id) do
 where("(conversations.sender_id = ? AND conversations.recipient_id =?) OR (conversations.sender_id = ? AND conversations.recipient_id =?)", sender_id,recipient_id, recipient_id, sender_id)
 end
end

Message.rb

class Message < ActiveRecord::Base
 belongs_to :conversation
 belongs_to :user
 validates_presence_of :body, :conversation_id, :user_id
 def message_time
  created_at.strftime("%m/%d/%y at %l:%M %p")
 end
end

conversations_controller.rb

class ConversationsController < ApplicationController
  before_action :authenticate_user!

  # GET /conversations
  # GET /conversations.json
  def index
    @users = User.all

    # Restrict to conversations with at least one message and sort by last updated
    @conversations = Conversation.joins(:messages).uniq.order('updated_at DESC')
  end

  # POST /conversations
  # POST /conversations.json
  def create
  if Conversation.between(params[:conversation][:sender_id], params[:conversation][:recipient_id]).present?
    @conversation = Conversation.between(params[:conversation][:sender_id], params[:conversation][:recipient_id]).first
  else
    @conversation = Conversation.create!(conversation_params)
  end

  redirect_to conversation_messages_path(@conversation)
end

  private
    # Use callbacks to share common setup or constraints between actions.
    def conversation_params
      params.require(:conversation).permit(:sender_id, :recipient_id)
    end
end

messages_controller.rb

class MessagesController < ApplicationController
  before_action do
   @conversation = Conversation.find(params[:conversation_id])
  end
def index
 @messages = @conversation.messages
  if @messages.length > 10
   @over_ten = true
   @messages = @messages[-10..-1]
  end
  if params[:m]
   @over_ten = false
   @messages = @conversation.messages
  end
 if @messages.last
  if @messages.last.user_id != current_user.id
   @messages.last.read = true;
  end
 end
@message = @conversation.messages.new
 end
def new
 @message = @conversation.messages.new
end
def create
 @message = @conversation.messages.new(message_params)
 if @message.save
  redirect_to conversation_messages_path(@conversation)
 end
end
private
 def message_params
  params.require(:message).permit(:body, :user_id)
 end
end

/conversations/index.html.erb

<div class="ui segment">
 <h3>Mailbox</h3>
 <div class="ui list">
  <div class="item">
   <% @conversations.each do |conversation| %>
   <% if conversation.sender_id == current_user.id || conversation.recipient_id == current_user.id %>
    <% if conversation.sender_id == current_user.id %>
      <% recipient = User.find(conversation.recipient_id) %>
    <% else %>
      <% recipient = User.find(conversation.sender_id) %>
    <% end %>
    Conversation avec <%= link_to recipient.prenom,   conversation_messages_path(conversation)%>
   <% end %>
  <% end %>
  </div>
 </div>
</div>
<div class="ui segment">
 <h3>All Users</h3>
  <div class="ui list">
   <% @users.each do |user| %>
    <% if user.id != current_user.id %>
     <div class="item">
   <%= user.prenom %> <%= button_to 'Message me', conversations_path(conversation: { sender_id: current_user.id, recipient_id: user.id }), class: 'btn btn-primary m-t' %>
 </div>
  <% end %>
 <% end %>
 </div>
</div>

messages/index.html.erb

<% if @over_ten %>
 <%= link_to 'Show Previous', "?m=all" %>
<% end %>
<div class="ui segment">
 <% @messages.each do |message| %>
  <% if message.body %>
   <% user = User.find(message.user_id) %>
   <div class="item">
    <div class="content">
     <div class="header"><strong><div class="imageavatarmessage"><%= image_tag user.avatar(:thumb), class:"imageavatarmessage" %></div><%= user.prenom %></strong>     <%= message.message_time %></div>
      <div class="list">
       <div class="item">
        <i class="right triangle icon"></i>
         <%= message.body %>
      </div>
    </div>
   </div>
 </div>
 <% end %>
<% end %>
</div>
<%= form_for [@conversation, @message], html: {class: "ui reply form"} do |f| %>
 <div class="field">
   <%= f.text_area :body, class: "form-control" %>
 </div>
 <%= f.text_field :user_id, value: current_user.id, type: "hidden" %>
 <div>
   <%= f.submit "Add Reply", class: "ui blue labeled submit icon button" %>
 </div>
<% end %>

解决方案

I would recommend you to go through this tutorial to build nice notification system https://www.devwalks.com/lets-build-instagram-part-6-notifications/

Basically, you have to create new model, set dependencies with your Message model and integrate to the controller

For the email notifications, it's even simpler. Just create new mailer and fire it on create action in messages_controller

def create
 @message = @conversation.messages.new(message_params)
 if @message.save
  SendMessageMailer.new_message(@message).deliver_later
  redirect_to conversation_messages_path(@conversation)
 end
end

EDIT: To create mailer, you should do something like this:

rails g mailer SendMessage

Go to /app/mailers/send_message_mailer.rb and add action, same type of building as controllers 

def new_message(message)
    @message = message
    mail(to: @message.user.email, subject: 'Hey! Here is what you missed')
end

Also, create an view (email template) and code with erb code

app/views/send_message_mailer/new_message.html.erb

Im not going deep into this, I guess you can figure out how to pass interval (let's say don't send if user is online or have read the message) and differentiate with receiver/sender users

Mailer, once again, is just same type of controller. You can pass as many params as you need and use model nesting inside mailer controller and views

mailer

def new_message(message, sender, receiver)
end

controller

SendMessageMailer.new_message(@message, @message.user, params[:receiver]).deliver_later

这篇关于向 RoR 消息收件箱系统添加通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

查看全文
相关文章
其他开发最新文章
热门教程
热门工具
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆