/**
* Returns the book title for the current Loan
* Executed whenever the property "book_title" is accessed
*/
function get_book_title()
{
if (empty($this->book)) {
$item = Item::newFromBarcode($this->barcode);
$this->book = new Book($item->book_id);
}
return $this->book->title;
}
/**
* method onSave()
* Executed whenever the user clicks at the save button
*/
function onSave()
{
try {
// open a transaction with database 'library'
TTransaction::open('library');
// get the form data into an active record Loan
$data = $this->form->getData('Loan');
$msg = '';
$persisted_objects = TSession::getValue('checkin_objects');
if ($persisted_objects) {
// iterate the collection of active records
foreach ($persisted_objects as $object) {
// add the object inside the datagrid
$this->datagrid->addItem($object);
$item = Item::newFromBarcode($object->barcode);
if ($item->status_id == '2') {
$loan = Loan::getFromBarcode($item->barcode);
$loan->arrive_date = date('Y-m-d');
// store the item
$item->status_id = '1';
$item->store();
// stores the loan
$loan->store();
$msg .= "{$item->barcode} - " . _t('Success') . "<br>";
} else {
$msg .= "{$item->barcode} - " . _t('Not checked out') . "<br>";
}
}
TSession::setValue('checkin_objects', NULL);
// set the data back to the form
$this->form->setData($object);
// shows the success message
new TMessage('info', $msg);
}
// close the transaction
TTransaction::close();
// reload the listing
$this->onReload();
} catch (Exception $e) {
// shows the exception error message
new TMessage('error', '<b>Error</b> ' . $e->getMessage());
// undo all pending operations
TTransaction::rollback();
}
}
