function cleanDBonPurge() { $class = new Cartridge(); $class->cleanDBonItemDelete($this->getType(), $this->fields['id']); $class = new CartridgeItem_PrinterModel(); $class->cleanDBonItemDelete($this->getType(), $this->fields['id']); $class = new Alert(); $class->cleanDBonItemDelete($this->getType(), $this->fields['id']); }