ActionCable 仅在频道中不调用#subscribe 注册连接

Question

我运行宁简单 Rails 应用 Smart Admin theme。我尝试了很多，但无法在我的应用程序上运行动作电缆。

my_own_channel.rb

class MyOwnChannel < ApplicationCable::Channel
  def subscribed
    stream_for 'my_own_channel'
  end
  def unsubscribed; end
end

channel.rb

module ApplicationCable
  class Channel < ActionCable::Channel::Base
  end
end

connection.rb

module ApplicationCable
  class Connection < ActionCable::Connection::Base
    identified_by :current_user

    def connect
      self.current_user = find_verified_user
      logger.add_tags 'ActionCable', current_user.email
    end

    protected

    def find_verified_user
      if verified_user = env['warden'].user
        verified_user
      else
        reject_unauthorized_connection
      end
    end
  end
end

../app/assets/javascripts/channels/my_own.js

App.status_monitor = App.cable.subscriptions.create("MyOwnChannel", {
  received: function(data) {
    alert('Received....');
  },
  connected: function() {
    alert('connected');
  },
  disconnected: function() {
    alert('disconnected now');
  }
});

../app/assets/javascripts/cable.js

//= require action_cable
//= require_self
//= require_tree ./channels

(function() {
  this.App || (this.App = {});

  App.cable = ActionCable.createConsumer();

}).call(this);

完成所有这些后，在日志中我没有看到流。在日志中我看到：

Started GET "/cable" for 127.0.0.1 at 2017-05-19 22:20:36 +0630
Started GET "/cable/" [WebSocket] for 127.0.0.1 at 2017-05-19 22:20:36 +0630
Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
User Load (1.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  ORDER BY "users"."id" ASC LIMIT   [["id", 1], ["LIMIT", 1]]
[ActionCable] [abcdefghijklmn@gmail.com] Registered connection (abcdefghijklmnopqrstuvwxyz)

而且那里没有连接的流。另一个问题是，我看到 connection.rb 中的连接方法被调用，但 MyOwnChannel 中的订阅方法没有被调用。我不知道缺少什么，我还在 routes.rb 文件中安装了 /cable 路由。

Answer 1

想通了。真正的问题是 Pace.js 我简单地评论了它，Action 电缆就开始工作了。没有弄清楚2个js文件之间真正的冲突是什么。但暂时有效。

Answer 2

这对我来说也是一个问题。删除 pace.js 将修复它，但您也可以禁用对 websockets 的跟踪，这也应该可以解决问题：

// set this before you load pace.js
window.paceOptions = {
  ajax: {
    trackWebSockets: false
  }
}

（参见来源 here）

pace 项目还有一个未解决的问题： https://github.com/HubSpot/pace/issues/411

ActionCable 仅在频道中不调用#subscribe 注册连接

ActionCable not calling #subscribe in channel only Registering connection

javascript

websocket

ruby-on-rails-5

actioncable