Question

非常新的动作电缆和角度2.我一直收到此错误，未找到订阅类：＆＃34; MessagesChannel＆＃34;，运行rails服务器时。我正在使用ng2-cable连接到我的rails api。

我在cordova上使用角度2

import { NgModule } from '@angular/core';
import { IonicApp, IonicModule } from 'ionic-angular';
import { MyApp } from './app.component';
import { HomePage } from '../pages/home/home';
import { MessageData } from '../providers/message-data';
import { Ng2Cable, Broadcaster } from 'ng2-cable/js/index';

@NgModule({
  declarations: [
    MyApp,
    HomePage
  ],
  imports: [
    IonicModule.forRoot(MyApp)
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    HomePage
  ],
  providers: [ MessageData, Ng2Cable, Broadcaster ]
})
export class AppModule {
  messages: any;
  constructor(private ng2cable: Ng2Cable, private broadcaster:       Broadcaster){
    this.ng2cable.subscribe('http://localhost:3000/cable',   'MessagesChannel');


  }

}

Rails MessagesChannel

class MessagesChannel < ApplicationCable::MessagesChannel
  def subscribed
    stream_from 'allmessages'
  end
end

感谢任何帮助！

Answer 1

希望这仍有帮助：默认的ActionCable频道继承自ApplicationCable::Channel文件夹中定义的app/channels/application_cable。您继承自ApplicationCable::MessagesChannel。除非您明确定义了该父类，否则人们期望具有以下内容：

class MessagesChannel < ApplicationCable::Channel
  def subscribed
    stream_from 'allmessages'
  end
end

找不到angular 2订阅类

1 个答案: