小编man*_*pta的帖子

这是room.coffee的代码:

App.room = App.cable.subscriptions.create "RoomChannel",
  connected: -> 
  disconnected: -> 

  received: (data) ->
    $('#messages').append "<p>#{data}</p>"    

  speak: (message) ->
    @perform 'speak' , message: message

cable.coffee:

@App ||= {}
App.cable = ActionCable.createConsumer()

rooms.coffee:

$ ->
    $messages = $('messages')
    $messages.scrollTop $messages.prop('scrollHieght')
    $('#message_input').focus()

$(document).on 'keypress','message_input','e'->
    if e.keycode == 13 and e.target.value
    App.room.speak(e.target.value)
    e.target.value = ''
    e.preventDefault()

roomchannel:

class RoomChannel < ApplicationCable::Channel
  def subscribed
     stream_from "room_channel"
  end

  def unsubscribed
    # Any cleanup needed when channel is unsubscribed
  end

  def speak(data)
    message.create content: data['message']
  end
end

Broadcostmessage: …