I have several divs where tinymce is executed, I need to take the value of the data_id attribute of the div where the change is detected in the editor.

<div class="myeditablediv" data_id="test">Edit</div>

tinymce.init({
  selector: '.myeditablediv',
  inline: true,
  extended_valid_elements: "+@[data_id]",
  setup: function(editor) {
    editor.on('change', function(e) {

      var id = $(this).attr('data_id') ///not working;
      alert(id);

    });
  }
});