sitions = {{ group | lower }}_sortable.toArray();
            $.ajaxSetup({
              beforeSend: function (xhr, settings) {
                if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
                  xhr.setRequestHeader('X-CSRFToken', csrftoken);
                }
              }
            });
            $.ajax(update_url, {
              type: 'POST',
              data: {
                'project': project_id,
                'priority': event.from.id,
                'positions'