text: RocketChat.Migrations.add({
  	version: 49,
  	up() {
  
  		let count = 1;
  
  		RocketChat.models.Rooms.find({ t: 'l' }, { sort: { ts: 1 }, fields: { _id: 1 } }).forEach(function(room) {
  			RocketChat.models.Rooms.update({ _id: room._id }, { $set: { code: count } });
  			RocketChat.models.Subscriptions.update({ rid: room._id }, { $set: { code: count } }, { multi: true });
  			count++;
  		});
  
  		RocketChat.models.Settings.upsert({ _id: 'Livechat_Room_Count' }, {
  			$set: {
  				value: count,
  				type: 'int',
  				group: 'Livechat'
  			}
  		});
  	}
  });
  