jQueryUI Multiple droppable elements

Question

How come when I drag my draggable div to droppable1 div it always gets placed in droppable2 div.

In addition I followed the jQuery UI snap-back option but it does not work. How could I make it that instead of dragging the actual draggable element it drags an instance/copy of it and have droppable accept multiple of these draggable elements.

<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script>
  $(function() {
    $( '#draggable' ).draggable();

    $( '#droppable1' ).droppable({
      drop: function(event, ui)
      {
        $(this)
          .append(ui.draggable.css({position: 'relative', left: '0px', top: '0px'}));
      }
    });

    $( '#droppable2' ).droppable({
      drop: function(event, ui)
      {
        $(this)
          .append(ui.draggable.css({position: 'relative', left: '0px', top: '0px'}));
      }
    });



  });
</script>

<div class="well">
  <div id="draggable">CONTENT</div>
</div>

<div id="droppable1" class="well col-md-3" style="z-index:-1;"></div>
<div id="droppable2" class="well col-md-9" style="z-index:-1;"></div>

Answer 1

You can use the accept filter to accept specific items in specifc droppable area.

$( '#droppable1' ).droppable({
      accept: '#draggable',
      drop: function(event, ui)
      {
        $(this)
          .append(ui.draggable.css({position: 'relative', left: '0px', top: '0px'}));
      }
    });