Rails5的actionCable-Java 学习之路

我几乎可以理解它 .

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_message ，内容为 @perform 'send_message', message: message, chat_room_id: chat_room_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 ，但该功能不起作用 .

1 回答

1
它是在rails中定义的 . 这里：https://github.com/rails/rails/blob/faa9a29fbbacc95e86c0ab3056a4443aa94e5530/actioncable/app/assets/javascripts/action_cable/subscription.coffee#L58-L60
```
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)
```
从 App.cable.subscriptions.create 得到的对象，它将具有此方法/功能 .
回复于 2024-05-20T20:02:59+08:00

Rails5的actionCable

1 回答

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