Problem_Ticket::processMassiveActionsForOneItemtype PHP Method

    static function processMassiveActionsForOneItemtype(MassiveAction $ma, CommonDBTM $item, array $ids)
    {
        switch ($ma->getAction()) {
            case 'add_task':
                if (!($task = getItemForItemtype('TicketTask'))) {
                    $ma->itemDone($item->getType(), $ids, MassiveAction::ACTION_KO);
                    break;
                }
                $ticket = new Ticket();
                $field = $ticket->getForeignKeyField();
                $input = $ma->getInput();
                foreach ($ids as $id) {
                    if ($item->can($id, READ)) {
                        if ($ticket->getFromDB($item->fields['tickets_id'])) {
                            $input2 = array($field => $item->fields['tickets_id'], 'taskcategories_id' => $input['taskcategories_id'], 'actiontime' => $input['actiontime'], 'content' => $input['content']);
                            if ($task->can(-1, CREATE, $input2)) {
                                if ($task->add($input2)) {
                                    $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_OK);
                                } else {
                                    $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                                    $ma->addMessage($item->getErrorMessage(ERROR_ON_ACTION));
                                }
                            } else {
                                $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                                $ma->addMessage($item->getErrorMessage(ERROR_RIGHT));
                            }
                        } else {
                            $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                            $ma->addMessage($item->getErrorMessage(ERROR_RIGHT));
                        }
                    }
                }
                return;
            case 'solveticket':
                $input = $ma->getInput();
                $ticket = new Ticket();
                foreach ($ids as $id) {
                    if ($item->can($id, READ)) {
                        if ($ticket->getFromDB($item->fields['tickets_id']) && $ticket->canSolve()) {
                            $toupdate = array();
                            $toupdate['id'] = $ticket->getID();
                            $toupdate['solutiontypes_id'] = $input['solutiontypes_id'];
                            $toupdate['solution'] = $input['solution'];
                            if ($ticket->update($toupdate)) {
                                $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_OK);
                            } else {
                                $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                                $ma->addMessage($ticket->getErrorMessage(ERROR_ON_ACTION));
                            }
                        } else {
                            $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                            $ma->addMessage($ticket->getErrorMessage(ERROR_RIGHT));
                        }
                    } else {
                        $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                        $ma->addMessage($ticket->getErrorMessage(ERROR_RIGHT));
                    }
                }
                return;
        }
        parent::processMassiveActionsForOneItemtype($ma, $item, $ids);
    }