/**
* The constructor.
*
* @throws Alpha\Exception\FailedLookupCreateException
* @throws Alpha\Exception\IllegalArguementException
*
* @since 1.0
*/
public function __construct($leftClassName, $rightClassName)
{
self::$logger = new Logger('RelationLookup');
self::$logger->debug('>>__construct(leftClassName=[' . $leftClassName . '], rightClassName=[' . $rightClassName . '])');
// ensure to call the parent constructor
parent::__construct();
if (empty($leftClassName) || empty($rightClassName)) {
throw new IllegalArguementException('Cannot create RelationLookup object without providing the left and right class names!');
}
$this->leftClassName = $leftClassName;
$this->rightClassName = $rightClassName;
$this->leftID = new Integer();
$this->rightID = new Integer();
$this->markTransient('leftClassName');
$this->markTransient('rightClassName');
$this->markTransient('helper');
$this->markTransient('TABLE_NAME');
// add a unique composite key to these fields
$this->markUnique('leftID', 'rightID');
// make sure the lookup table exists
if (!$this->checkTableExists() && ActiveRecord::isInstalled()) {
// first make sure that the two BO tables exist before relating them with a lookup table
if (ActiveRecord::checkBOTableExists($leftClassName) && ActiveRecord::checkBOTableExists($rightClassName)) {
$this->makeTable();
} else {
throw new FailedLookupCreateException('Error trying to create a lookup table [' . $this->getTableName() . '], as tables for BOs [' . $leftClassName . '] or [' . $rightClassName . '] don\'t exist!');
}
}
self::$logger->debug('<<__construct');
}
