jquery Sortable connectWith calls the update method twice

Question

In the code below the update function gets called twice when an item is moved from list sortable1 to sortable2. Though I need to call that function only once:

$("#sortable1 tbody, #sortable2 tbody").sortable({     connectWith: '.connectedSortable tbody',     helper: fixHelper,     handle : '.handle',     update : function () {         var order = $('#sortable1 tbody').sortable('serialize');     }     }).disableSelection(); 

Answer 1

Answer from: http://forum.jquery.com/topic/sortables-update-callback-and-connectwith

update: function(e,ui) {     if (this === ui.item.parent()[0]) {         //your code here     } }