public function categorySave()
 {
     $validation_rule = array('category_name' => array('required', 'max:100'), 'category_description' => array('required', 'max:500'));
     $validation = Validator::make(Input::all(), $validation_rule);
     if ($validation->fails()) {
         // If validation failed then returned to the serviseForm with error massege
         return Redirect::to('/addCategory')->withErrors($validation);
     } else {
         $category_name = Input::get('category_name');
         $category_description = Input::get('category_description');
         // Insert data into database
         ItemConfiguration::addCategory($category_name, $category_description);
         return Redirect::to('/addCategory')->with('add_success_massege', 'New Category Added successfully.');
     }
 }