public function postToCartEmptier($r)
{
$u = $this->user;
$u->expireDataCache($r->getCache());
$tag = new Dase_DBO_Tag($this->db);
$tag->dase_user_id = $u->id;
$tag->type = 'cart';
if ($tag->findOne()) {
foreach ($tag->getTagItems() as $ti) {
$ti->delete();
}
$tag->updateItemcount();
$params['msg'] = "Your cart has been emptied.";
$r->renderRedirect("user/{$u->eid}/cart", $params);
} else {
$r->renderResponse("no such cart");
}
}
