Only 2 cards assigned

gistfile1.txt

function onlyTwoCardsAssigned(notification)
{
  var notif = new Notification(notification);
  var added = notif.addedMemberToCard();
  var existing = notif.board().cards().find(function(card)
  {
    try
    {
      card.member(added.name());
      return card;
    }
    
    catch(e)
    {
      Notification.expectException(InvalidDataException,e);
      return false;
    }
  });
  
  if(existing.length() > 2)
  {
    added.card().removeMember(added);
    notif.replyToMember("Only 2 cards per member");
  }
}