Magento helper functions

gistfile1.txt

<?php

class MagentoHelper {

	function addSimpleProductToWishlist($productId, $customerId) {
		$wishlist   = Mage::getModel('wishlist/wishlist')->loadByCustomer($customerId, true);
		$product    = Mage::getModel('catalog/product')->load($productId);
		$buyRequest = new Varien_Object(array()); // any possible options that are configurable and you want to save with the product
		$result     = $wishlist->addNewItem($product, $buyRequest);
		$wishlist->save();
	}

	// $parentId    = <grouped_product_id > Id of the grouped product
	// $children    = array('<child_id_1>', '<child_id_2>', '<child_id_3>'); Create an array of associated products
	// $child_qty   Quantity of each child product to be addede to cart
	function addGroupedProductToCart($parentId, $children,$child_qty) {

		//Array for holding the associated products
		$super_group = array();

		//Add all child products to $super_group with product_id as key and quantity as value
		foreach($children as $child) {
			if(intval($child)) {
				$super_group[ $child ] = $child_qty;
			}
		}

		//Add Grouped product to cart
		try {
			//Get object of main grouped product
			$product = Mage::getModel('catalog/product')->load($parentId);
			//Check product availability
			if( ! $product) {
				echo "Error in product!";

				return;
			}
			//Get cart object
			$cart = Mage::getModel('checkout/cart');
			//Create params for grouped product
			$params = array('super_group' => $super_group);
			//Add product to cart with specified parameters and save the cart object
			$cart->addProduct($product, $params)->save();
			Mage::getSingleton('checkout/session')->setCartWasUpdated(true);
			echo $this->__('%s was added to your shopping cart.', Mage::helper('core')->htmlEscape($product->getName()));
		}
		catch(Mage_Core_Exception $e) {
			if(Mage::getSingleton('checkout/session')->getUseNotice(true)) {
				echo $this->__($e->getMessage());
			}
			else {
				$messages = array_unique(explode("n", $e->getMessage()));
				foreach($messages as $message) {
					echo "<br />".$message;
				}
			}
		}
		catch(Exception $e) {
			echo $this->__('Cannot add the item to shopping cart.');
		}
	}

	function addSimpleProductToCart($productId,$quantity) {
		// @todo should implement
	}

	function addGroupedProductToWishlist($productId) {
		// @todo should implement
	}

	function getAddToCartUrlForGroupedProduct($grouped_product,$simple_product_id) {
		return $this->helper('checkout/cart')->getAddUrl($grouped_product, []) . 'qty/1?super_group['.$simple_product_id.']=1';
	}
}