public function adjust_price()
 {
     if (!self::isExecutiveOfficer()) {
         $this->render('permission_denied.php');
         return;
     }
     $id = (int) phpgw::get_var('price_item_id');
     $new_price = phpgw::get_var('new_price');
     $new_price = str_replace(',', '.', $new_price);
     if ($new_price != null && is_numeric($new_price)) {
         $price_item = rental_price_item::get($id);
         $price_item->set_price($new_price);
         if (rental_soprice_item::get_instance()->store($price_item)) {
             $adjustment = new rental_adjustment();
             $adjustment->set_price_item_id($price_item->get_id());
             $adjustment->set_new_price($new_price);
             $adjustment->set_year(date('Y'));
             $adjustment->set_percent(0);
             $adjustment->set_interval(0);
             $adjustment->set_responsibility_id($price_item->get_responsibility_id());
             $adjustment->set_is_manual(true);
             $adjustment->set_adjustment_date(time());
             rental_soadjustment::get_instance()->store($adjustment);
             $message[] = "Priselement med Agresso id {$price_item->get_agresso_id()} er oppdatert med ny pris {$new_price}";
             //update affected contract_price_items
             $no_of_contracts_updated = rental_soprice_item::get_instance()->adjust_contract_price_items($id, $new_price);
             if ($no_of_contracts_updated > 0) {
                 $message[] = $no_of_contracts_updated . ' priselementer på kontrakter er oppdatert';
             } else {
                 $message[] = "Ingen kontrakter er oppdatert";
             }
             $data = array('price_item_id' => $id, 'message' => $message);
             self::set_active_menu('rental::contracts::price_item_list::manual_adjustment');
             $this->render('admin_price_item_manual_adjustment.php', $data);
         } else {
             $data = array('price_item_id' => $id, 'error' => $error);
             self::set_active_menu('rental::contracts::price_item_list::manual_adjustment');
             $this->render('admin_price_item_manual_adjustment.php', $data);
         }
     } else {
         $data = array('price_item_id' => $id, 'error' => lang('price_not_numeric'));
         self::set_active_menu('rental::contracts::price_item_list::manual_adjustment');
         $this->render('admin_price_item_manual_adjustment.php', $data);
     }
 }