unable drag the item to the input field

I am using ember drag drop plugin in my ember-app:"ember install ember-drag-drop" to drag the item from one place to another but i am unable to drop to the input field.

here is my code:

controller::

myStartAction: function(content) {
        console.log("content"+content);
     //Content is the same as the content parameter set above
    },
    myEndAction: function(content) {
      //Content is the same as the content parameter set above
    },  

how to solve this issue.