public function afterSave($evt)
{
// file attribute value is expected to be either an id of old associated media or
// an instance of CUploadedFile. Can also be an array containing either.
$fileAttribute = $this->fileAttribute;
$transaction = Yii::app()->db->beginTransaction();
try {
$files = ArrayUtil::coerceToArray($this->owner->{$fileAttribute});
// remove old associated media with ids not found in file attribute
$resubmittedMediaIds = array();
foreach ($files as $file) {
if (!$file instanceof CUploadedFile && is_numeric($file)) {
$resubmittedMediaIds[] = (int) $file;
}
}
$associatedMedia = Media::model()->findAllByAttributes(array('associationType' => $this->associationType, 'associationId' => $this->getAssociationId()));
foreach ($associatedMedia as $media) {
if (!in_array((int) $media->id, $resubmittedMediaIds, true)) {
$media->delete();
}
}
// save uploaded files as associated media
foreach ($files as $file) {
$this->saveAssociatedMedia($file);
}
$transaction->commit();
} catch (CException $e) {
$transaction->rollback();
}
}
/**
* @deprecated
*/
public static function coerceToArray(&$arr)
{
$arr = ArrayUtil::coerceToArray($arr);
}
