public function listingAjaxHandler(Request $request)
 {
     $inputData = $request->input();
     $method = $inputData['method'];
     switch ($method) {
         case 'Category':
             $category_id = $request->input('category_id');
             $objsubcategoryById = new Category();
             $resultcategory = $objsubcategoryById->getsubcategory($category_id);
             echo json_encode($resultcategory);
             break;
         case 'SubCategory':
             $subcategory_id = $request->input('subCategory_id');
             $objsubcategoryByname = new Category();
             $resultsubcategory = $objsubcategoryByname->getsubcategoryByname($subcategory_id);
             echo json_encode($resultsubcategory);
             break;
         default:
             break;
     }
 }