Drag object into sortable list - AngularJS

Problem: I'm trying to recreate the Draggable + Sortable functionality from jQuery and can't get the dropped element to go into my array of objects. I want to drag a $.draggable() button into a $.sortable() list. I want the button to represent an object with properties (could be an associative array, or an object itself) and when I drop it in my list I want it to put itself into the array at the p