Ruby on rails 铁路电缆5

在这个

我几乎能理解

但只有一部分我不能

//javascripts/channels/rooms.coffee

App.global_chat = App.cable.subscriptions.create {
    channel: "ChatRoomsChannel"
    chat_room_id: ''
  },
  connected: ->
    # Called when the subscription is ready for use on the server

  disconnected: ->
    # Called when the subscription has been terminated by the server

  received: (data) ->
    # Data received

  send_message: (message, chat_room_id) ->
    @perform 'send_message', message: message, chat_room_id: chat_room_id

方法

send\u message

的内容为

@执行“send\u message”，message:message，chat\u room\u id:chat\u room\u id

。将其显示为Javascript：

function(message){
 return this.perform('speak', {
        message: message
      });
}

我的问题是执行的功能在哪里？

---

我试图将

@perform

修改为

@performs

，但该函数无法工作。

它是在rails中定义的。在这里：

---

您从App.cable.subscriptions.create获得的对象将具有此方法/功能。

“我试图将@perform修改为@performs”-为什么？你对会发生什么的假设是什么？@SergioTulentsev我只是想知道执行功能在哪里

class ActionCable.Subscription
  constructor: (@consumer, params = {}, mixin) ->
    @identifier = JSON.stringify(params)
    extend(this, mixin)

  # Perform a channel action with the optional data passed as an attribute
  perform: (action, data = {}) ->
    data.action = action
    @send(data)