Cara menghapus data dari induk database/relasi (delete foreach data)

public function destroy($id)
{

$image_gallery = ImageGallery::whereGalleryId($id)->get();

foreach($image_gallery as $image_galleries) {
      ImageGallery::whereId($image_galleries->id)->delete();
    }

$gallery = Gallery::findOrFail($id);
$gallery->delete();

return Redirect::action('admin\GalleryController@index')->with('success','User deleted successfully');
}