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

Since collections are lazy loaded, I am assuming you can do something such as:

$_product = ...; // some product object you already have

$_productCollection = Mage::helper('wishlist')->getProductCollection()
    ->addFieldToFilter('sku', $_product->getSku());

if($_productCollection->count() > 0) {
    // User already has item in wishlist.
}

You can do similar filtering on other fields, but SKU should be sufficient in this case.