This is tutorial for guiding create a button adding multiple products to wishlist in category page. Let’s start !
Firstly, We need to create a button. Go to the the file : app/design/frontend/default/your-current-theme/catalog/product/list.phtml

Put this code . Notice my highlighter code

<?php
/**
* Product list template
*
* @see Mage_Catalog_Block_Product_List
*/
?>
<?php
$_productCollection=$this->getLoadedProductCollection();
$_helper = $this->helper('catalog/output');
?>
<?php if(!$_productCollection->count()): ?>
<p class="note-msg"><?php echo $this->__('There are no products matching the selection.') ?></p>
<?php else: ?>
<div class="category-products">
<form action="<?php echo Mage::getUrl('wishlist/index/addmultiple') ;?>" method="post" id="products_addtowishlist_form" enctype="multipart/form-data">
<input type="hidden" name="wishlist_products" id="wishlist_products" value="" />
<button class="form-button button btn-cart" onclick="this.form.submit()"><span><span><?php echo $this->__('Put all in wishlist') ?></span></span></button>
</form>
<?php echo $this->getToolbarHtml() ?>
<?php // List mode ?>
<?php if($this->getMode()!='grid'): ?>
<?php $_iterator = 0; ?>
<ol class="products-list" id="products-list">
<?php foreach ($_productCollection as $_product): ?>
<li class="item<?php if( ++$_iterator == sizeof($_productCollection) ): ?> last<?php endif; ?>">
<?php // Product Image ?>
<a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" class="product-image"><img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(135); ?>" width="135" height="135" alt="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" /></a>
<?php // Product description ?>
<div class="product-shop">
<div class="f-fix">
<?php $_productNameStripped = $this->stripTags($_product->getName(), null, true); ?>
<h2 class="product-name"><a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $_productNameStripped; ?>"><?php echo $_helper->productAttribute($_product, $_product->getName() , 'name'); ?></a></h2>
<?php if($_product->getRatingSummary()): ?>
<?php echo $this->getReviewsSummaryHtml($_product) ?>
<?php endif; ?>
<?php echo $this->getPriceHtml($_product, true) ?>
<?php if($_product->isSaleable()): ?>
<p><button type="button" title="<?php echo $this->__('Add to Cart') ?>" class="button btn-cart" onclick="setLocation('<?php echo $this->getAddToCartUrl($_product) ?>')"><span><span><?php echo $this->__('Add to Cart') ?></span></span></button></p>
<input type="hidden" name="products[]" value="<?php echo $_product->getId() ?>" />
<?php else: ?>
<p class="availability out-of-stock"><span><?php echo $this->__('Out of stock') ?></span></p>
<?php endif; ?>
<div class="desc std">
<?php echo $_helper->productAttribute($_product, $_product->getShortDescription(), 'short_description') ?>
<a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $_productNameStripped ?>" class="link-learn"><?php echo $this->__('Learn More') ?></a>
</div>
<ul class="add-to-links">
<?php if ($this->helper('wishlist')->isAllow()) : ?>
<li><a href="<?php echo $this->helper('wishlist')->getAddUrl($_product) ?>" class="link-wishlist"><?php echo $this->__('Add to Wishlist') ?></a></li>
<?php endif; ?>
<?php if($_compareUrl=$this->getAddToCompareUrl($_product)): ?>
<li><span class="separator">|</span> <a href="<?php echo $_compareUrl ?>" class="link-compare"><?php echo $this->__('Add to Compare') ?></a></li>
<?php endif; ?>
</ul>
</div>
</div>
</li>
<?php endforeach; ?>
</ol>
<script type="text/javascript">decorateList('products-list', 'none-recursive')</script>

<?php else: ?>

<?php // Grid Mode ?>

<?php $_collectionSize = $_productCollection->count() ?>
<?php $_columnCount = $this->getColumnCount(); ?>
<?php $i=0; foreach ($_productCollection as $_product): ?>
<?php if ($i++%$_columnCount==0): ?>
<ul class="products-grid">
<?php endif ?>
<li class="item<?php if(($i-1)%$_columnCount==0): ?> first<?php elseif($i%$_columnCount==0): ?> last<?php endif; ?>">
<a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" class="product-image"><img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(135); ?>" width="135" height="135" alt="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" /></a>
<h2 class="product-name"><a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->stripTags($_product->getName(), null, true) ?>"><?php echo $_helper->productAttribute($_product, $_product->getName(), 'name') ?></a></h2>
<?php if($_product->getRatingSummary()): ?>
<?php echo $this->getReviewsSummaryHtml($_product, 'short') ?>
<?php endif; ?>
<?php echo $this->getPriceHtml($_product, true) ?>
<div class="actions">
<?php if($_product->isSaleable()): ?>
<button type="button" title="<?php echo $this->__('Add to Cart') ?>" class="button btn-cart" onclick="setLocation('<?php echo $this->getAddToCartUrl($_product) ?>')"><span><span><?php echo $this->__('Add to Cart') ?></span></span></button>
<input type="hidden" name="products[]" value="<?php echo $_product->getId() ?>" />
<?php else: ?>
<p class="availability out-of-stock"><span><?php echo $this->__('Out of stock') ?></span></p>
<?php endif; ?>
<ul class="add-to-links">
<?php if ($this->helper('wishlist')->isAllow()) : ?>
<li><a href="<?php echo $this->helper('wishlist')->getAddUrl($_product) ?>" class="link-wishlist"><?php echo $this->__('Add to Wishlist') ?></a></li>
<?php endif; ?>
<?php if($_compareUrl=$this->getAddToCompareUrl($_product)): ?>
<li><span class="separator">|</span> <a href="<?php echo $_compareUrl ?>" class="link-compare"><?php echo $this->__('Add to Compare') ?></a></li>
<?php endif; ?>
</ul>
</div>
</li>
<?php if ($i%$_columnCount==0 || $i==$_collectionSize): ?>
</ul>
<?php endif ?>
<?php endforeach ?>
<script type="text/javascript">decorateGeneric($$('ul.products-grid'), ['odd','even','first','last'])</script>
<?php endif; ?>

<div class="toolbar-bottom">
<?php echo $this->getToolbarHtml() ?>
</div>
</div>
<?php endif; ?>
<script type="text/javascript">
jQuery('#products_addtowishlist_form').on('submit',function(){
var products = {};
var i = 0;
jQuery('input[name="products[]"]').each(function() {
var productId = jQuery(this).val();
products[i]= productId;
i++;
});
jQuery('#wishlist_products').val(JSON.stringify(products));
return;
});
</script>

 

[/code]

Secondly, We also need a controller to handle this action. I recommend you to create a new controller which is extended Mage_Wishlist_IndexController .

In this case, to easy management we create a new module , so we can disable or custom it later.

Create app/etc/modules/Yourcompany_Wishlist.xml for registering new module in magento :

<?xml version="1.0"?>

<config>
<modules>
<Yourcompany_Wishlist>
<active>true</active>
<codePool>local</codePool>
</Yourcompany_Wishlist>
</modules>
</config>

 

Create app/code/local/Yourcompany/Wishlist/etc/config.xml

<?xml version="1.0"?>
<config>
<modules>
<Yourcompany_Wishlist>
<version>1.0.0</version>
</Yourcompany_Wishlist>
</modules>

<frontend>
<routers>
<wishlist>
<use>standard</use>
<args>
<modules>
<Yourcompany_Wishlist before="Mage_Wishlist">Yourcompany_Wishlist</Yourcompany_Wishlist>
</modules>
</args>
</wishlist>
</routers>
</frontend>
</config>

 

Create a controller to handle request adding multiple products to wishlist

<?php
require_once 'Mage/Wishlist/controllers/IndexController.php';

class Yourcompany_Wishlist_IndexController extends Mage_Wishlist_IndexController
{
public function addmultipleAction(){

$wishlist = $this->_getWishlist();
if (!$wishlist) {
return $this->norouteAction();
}

$session = Mage::getSingleton('customer/session');

$products = $this->getRequest()->getParam('wishlist_products');
$products = json_decode($products,true);

if(!is_array($products)){
$this->_redirect('*/');
return ;
}

foreach($products as $productId):

$productId = (int)$productId;

$product = Mage::getModel('catalog/product')->load($productId);

if (!$product->getId() || !$product->isVisibleInCatalog()) continue;

try {
$requestParams = $products;
if ($session->getBeforeWishlistRequest()) {
$requestParams = $session->getBeforeWishlistRequest();
$session->unsBeforeWishlistRequest();
}
$buyRequest = new Varien_Object($requestParams);

$result = $wishlist->addNewItem($product, $buyRequest);
if (is_string($result)) {
Mage::throwException($result);
}
$wishlist->save();

Mage::dispatchEvent(
'wishlist_add_product',
array(
'wishlist'  => $wishlist,
'product'   => $product,
'item'      => $result
)
);

$referer = $session->getBeforeWishlistUrl();
if ($referer) {
$session->setBeforeWishlistUrl(null);
} else {
$referer = $this->_getRefererUrl();
}

/**
*  Set referer to avoid referring to the compare popup window
*/
$session->setAddActionReferer($referer);

Mage::helper('wishlist')->calculate();

$message = $this->__('%1$s has been added to your wishlist. Click <a href="%2$s">here</a> to continue shopping.', $product->getName(), Mage::helper('core')->escapeUrl($referer));
$session->addSuccess($message);
}
catch (Mage_Core_Exception $e) {
$session->addError($this->__('An error occurred while adding item to wishlist: %s', $e->getMessage()));
}
catch (Exception $e) {
$session->addError($this->__('An error occurred while adding item to wishlist.'));
}

endforeach;

$this->_redirect('*', array('wishlist_id' => $wishlist->getId()));

}
}
?>

Try to refresh your cache to see this changes. That’s finish. Happy coding!

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