ruby-on-rails - 如何在 rails/actioncable 中向除发件人以外的所有客户端发送消息？

Question

在 socket.io 中，你可以向除发送者之外的所有客户端发送消息，例如:

socket.broadcast.emit('user connected');

但是在 rails/actioncable 中，该怎么做呢？

class BoardChannel < ApplicationCable::Channel
   def subscribed
     stream_from "board:#{params[:board]}"
   end

   def speak
     # client will call @perform('speak')
     result = do_something()
     # how to send 'result' to all client except sender?
   end
 end

Answer 1

我整个下午都在为这个问题烦恼。都准备放弃了，刚躺在床上，脑子里灵光一闪，灵机一动! ! !登录分享

 class BoardChannel < ApplicationCable::Channel
   def subscribed
     stream_from "board:#{params[:board]}"
     stream_from "global_stream"
   end
 end

然后，当你想广播所有用户时，你可以:

ActionCable.server.broadcast "global_stream", "some messages"

当然也可以给特殊用户广播。你可以:

ActionCable.server.broadcast "board:#{params[:board]}", "some messages"

完美!!!