Check whether a product is in the wishlist or not

Question

I\'m working on a Magento theme, and I need to build a function that can check to see whether or not a product has been added to the user\'s wishlist.

Magento has a

Answer 1

I found this solution after checked select query of Mage::helper('wishlist')->getWishlistItemCollection(). I hope this solution help to someone.

   /**
     * Check customers wishlist on identity product.
     * @param Mage_Catalog_Model_Product $_product
     * @return bool
     */
    private function _isInWishlist($_product)
    {        
        $_productCollection = Mage::helper('wishlist')->getWishlistItemCollection()
        ->addFieldToFilter('product_id', $_product->getId());

        if ($_productCollection->count()) {
            return true;
        }

        return false;
    }