static function countForCartridgeItem(CartridgeItem $item)
{
return countElementsInTable(array('glpi_printermodels', static::getTable()), [static::getTable() . 'cartridgeitems_id' => $item->getField('id'), 'FKEY' => [static::getTable() => 'printermodels_id', 'glpi_printermodels' => 'id']]);
}