/**
* Returns the storage mechanism for the given storage type.
* @param string $storage
* @return I2CE_FormStorage_Mechanism or false on failure
*/
public static function getMechanismByStorage($storage)
{
if (!is_array(self::$storageMechs)) {
self::$storageMechs = array();
}
if (!array_key_exists($storage, self::$storageMechs) || !self::$storageMechs[$storage] instanceof I2CE_FormStorage_Mechanism) {
$mechanism = 'I2CE_FormStorage_' . $storage;
if (!class_exists($mechanism)) {
I2CE::raiseError("Form storage mechanism {$mechanism} does not exist");
return false;
}
if (!is_subclass_of($mechanism, 'I2CE_FormStorage_Mechanism')) {
I2CE::raiseError("Form storage mechanism " . $mechanism . " does not subclass I2CE_FormStorage_Mechanism");
return false;
}
$options = array();
I2CE::getConfig()->setIfIsSet($options, "/modules/forms/storage_options/{$storage}", true);
self::$storageMechs[$storage] = new $mechanism($storage, $options);
}
return self::$storageMechs[$storage];
}
