public function addToWish($id_product) { if ((int) $id_product == 0) { return false; } $id_wish = Db::getInstance()->getValue('SELECT id_wish FROM ' . DB_PREFIX . 'wish WHERE id_user='******' AND id_product=' . (int) $id_product); if ($id_wish > 0) { $wish = new Wish($id_wish); $wish->delete(); return -1; } else { $wish = new Wish(); $wish->copyFromPost(); $wish->id_user = (int) $this->id; $wish->id_product = (int) $id_product; if ($wish->add()) { return 1; } return false; } }