function delete_from_gallery()
{
$id_gallery_image = Params::get("id_gallery_image");
$peer = new GalleryImagePeer();
$gallery_image = $peer->find_by_id($id_gallery_image);
$gallery_peer = new GalleryPeer();
$gallery = $gallery_peer->find_by_id($gallery_image->id_gallery);
$collection_peer = new GalleryCollectionPeer();
$gallery_collection = $collection_peer->find_by_id($gallery->id_gallery_collection);
$full_image_path = GalleryCollectionController::GALLERY_COLLECTION_ROOT_DIR . $gallery_collection->folder . "/" . $gallery->folder . "/" . $gallery_image->image_name;
$f = new File($full_image_path);
ImagePicker::delete_image_thumbnails($f);
$f->delete();
$peer->delete($gallery_image);
return Redirect::success();
}