public function actionDelete($cid = null, $fid = null, $id = null, $slug = null)
    {
        $thread = (new ThreadVerifier([
            'categoryId' => $cid,
            'forumId' => $fid,
            'threadId' => $id,
            'threadSlug' => $slug
        ]))->verify();
        if (empty($thread)) {
            $this->error(Yii::t('podium/flash', 'Sorry! We can not find the thread you are looking for.'));
            return $this->redirect(['forum/index']);
        }

        if (!User::can(Rbac::PERM_DELETE_THREAD, ['item' => $thread])) {
            $this->error(Yii::t('podium/flash', 'Sorry! You do not have the required permission to perform this action.'));
            return $this->redirect(['forum/index']);
        }

        $postData = Yii::$app->request->post('thread');
        if ($postData) {
            if ($postData != $thread->id) {
                $this->error(Yii::t('podium/flash', 'Sorry! There was an error while deleting the thread.'));
            } else {
                if ($thread->podiumDelete()) {
                    $this->success(Yii::t('podium/flash', 'Thread has been deleted.'));
                    return $this->redirect([
                        'forum/forum',
                        'cid' => $thread->forum->category_id,
                        'id' => $thread->forum->id,
                        'slug' => $thread->forum->slug
                    ]);
                }
                $this->error(Yii::t('podium/flash', 'Sorry! There was an error while deleting the thread.'));
            }
        }
        return $this->render('delete', ['model' => $thread]);
    }