Ansel_Ajax_Application_Handler::removeTag PHP Method

    public function removeTag()
    {
        global $injector, $registry;
        $gallery = $this->vars->gallery;
        $tags = $this->vars->tags;
        $image = $this->vars->image;
        if ($image) {
            $id = $image;
            $type = 'image';
        } else {
            $id = $gallery;
            $type = 'gallery';
        }
        if (!is_numeric($id)) {
            throw new Ansel_Exception(_("Invalid input %s"), $id);
        }
        $storage = $injector->getInstance('Ansel_Storage');
        if ($type == 'gallery') {
            $resource = $storage->getGallery($id);
            $parent = $resource;
        } else {
            $resource = $storage->getImage($id);
            $parent = $storage->getGallery($resource->gallery);
        }
        $tagger = $injector->getInstance('Ansel_Tagger');
        $tagger->untag($resource->id, (int) $tags, $type);
        $currentTags = $tagger->getTags($resource->id, $type);
        if (count($currentTags)) {
            $newTags = $tagger->getTagInfo(array_keys($currentTags));
        } else {
            $newTags = array();
        }
        $links = Ansel::getTagLinks($newTags, 'add');
        foreach ($newTags as &$tag_info) {
            $tag_info['link'] = strval($links[$tag_info['tag_id']]);
        }
        return $newTags;
    }