pusher-bug.js

// Investigating this issue a realized some behaivor that may not be what is excpected. Assuming we have two presence channels (say p1 and p2) created by exstending a common channel (using Pusher.Util.extend) and doing p1.memmbers.add(member) also adds the member to p2.members. Trying to overcome my bad english, I made a simplified example.

var Pusher = {}

Pusher.Channel = function(channel_name){
  this.name = channel_name;
}

Pusher.Channel.prototype = {
  init : function(){ return "prototype init"; }
}

Pusher.Channel.PresenceChannel = {
  init : function() { return "presence channel init"; },
  members : {
    count : 0,
    increment : function(){
      this.count++;
    }
  }
}

Pusher.Util = {
  extend: function(target, extensions){
    for(var i in extensions){
      target[i] = extensions[i]
    }
    return target;
  }
}

var ch1 = new Pusher.Channel("channel 1");
var ch2 = new Pusher.Channel("channel 2");

ch1 = Pusher.Util.extend(ch1, Pusher.Channel.PresenceChannel);
ch2 = Pusher.Util.extend(ch2, Pusher.Channel.PresenceChannel);

ch1.members.increment();
console.log(ch1.members.count); // 1
console.log(ch2.members.count); // 1