public function clearCache()
{
if ($this->id) {
$viewCache = $this->getDI()->getShared('viewCache');
$viewCache->delete('post-' . $this->posts_id);
$viewCache->delete('post-body-' . $this->posts_id);
$viewCache->delete('post-users-' . $this->posts_id);
$viewCache->delete('reply-body-' . $this->id);
}
}