Magento – Add To Cart button, Product with custom options that are not required

addtocartcustom-optionsproduct-list

I want to change the behavior of the Add to Cart button from the list / grid views. Where this is clicked for a product that has custom options that are required, the customer is taken into the product page to complete the options, and then they add to cart.

I want the same behavior for a product that has custom options that are not required. The add to cart button add the product into the shopping cart.

So my question is, how can I change Add to Cart button in list/grid views so that you are moved into the product page whether the optional are required or not.

I realize that making one or more of the options mandatory would solve this, but the options all need to be non-mandatory for reasons.

Best Answer

In .../template/catalog/product/list.phtml, you'll see $this->getAddToCartUrl($_product). This generates the URL to add to cart. You can create a custom function that places the product URL instead in your case. Check it out.

Takes in $_product as its argument
Checks if $_product has any custom options. See below
Returns $this->getAddToCartUrl(...) if no custom options. Returns $this->getProductUrl(...) if at least one custom option is present.

To check if a product has any custom attributes at all..

$options = $product->getOptions();
if ($options) {
    return true; // has custom options
} else {
    return false; // no custom options
}

Related Solutions

Magento – Add custom options while adding grouped product to cart

I found a solution which does not need an observer.

I had to do a rewrite to Mage_Sales_Model_Quote. More specific the method addProductAdvanced()

Bad news: You can not simply use parent::addProductAdvanced() and then do your own stuff. You have to copy the original code and fill it up with your code.

Here is what I did (look out for the comment starting with /********):

public function addProductAdvanced(Mage_Catalog_Model_Product $product, $request = null, $processMode = null) {
    if ($request === null) {
        $request = 1;
    }
    if (is_numeric ( $request )) {
        $request = new Varien_Object ( array (
                'qty' => $request 
        ) );
    }
    if (! ($request instanceof Varien_Object)) {
        Mage::throwException ( Mage::helper ( 'sales' )->__ ( 'Invalid request for adding product to quote.' ) );
    }

    $cartCandidates = $product->getTypeInstance ( true )->prepareForCartAdvanced ( $request, $product, $processMode );

    /**
     * Error message
     */
    if (is_string ( $cartCandidates )) {
        return $cartCandidates;
    }

    /**
     * If prepare process return one object
     */
    if (! is_array ( $cartCandidates )) {
        $cartCandidates = array (
                $cartCandidates 
        );
    }

    $parentItem = null;
    $errors = array ();
    $items = array ();
    foreach ( $cartCandidates as $candidate ) {
        // Child items can be sticked together only within their parent
        $stickWithinParent = $candidate->getParentProductId () ? $parentItem : null;
        $candidate->setStickWithinParent ( $stickWithinParent );
        $item = $this->_addCatalogProduct ( $candidate, $candidate->getCartQty () );

        /******** own modification for custom option GROUPSKU*/
        if($product->isGrouped()){
            $additionalOptions = array (
                    'options' => array (
                            'label' => 'GROUPSKU',
                            'value' => $product->getSku ()
                    )
            );
            $item->addOption ( new Varien_Object ( array (
                    'product' => $item->getProduct (),
                    'code' => 'additional_options',
                    'value' => serialize ( $additionalOptions )
            ) ) );
        }
        /******** own modification end*/

        if ($request->getResetCount () && ! $stickWithinParent && $item->getId () === $request->getId ()) {
            $item->setData ( 'qty', 0 );
        }
        $items [] = $item;

        /**
         * As parent item we should always use the item of first added product
         */
        if (! $parentItem) {
            $parentItem = $item;
        }
        if ($parentItem && $candidate->getParentProductId ()) {
            $item->setParentItem ( $parentItem );
        }

        /**
         * We specify qty after we know about parent (for stock)
         */
        $item->addQty ( $candidate->getCartQty () );

        // collect errors instead of throwing first one
        if ($item->getHasError ()) {
            $message = $item->getMessage ();
            if (! in_array ( $message, $errors )) { // filter duplicate messages
                $errors [] = $message;
            }
        }
    }
    if (! empty ( $errors )) {
        Mage::throwException ( implode ( "\n", $errors ) );
    }

    Mage::dispatchEvent ( 'sales_quote_product_add_after', array (
            'items' => $items 
    ) );

    return $item;
}

This way all the products that are added to the cart using a grouped product now have the custom option.

Magento 1.9 – Single Product with Multiple Add to Cart

For the color part I suggest to use the Custom Options in your Product configuration.

If your template don't allow to input the Qty for a product you can create own buttons in your template file where you can use $this->getSubmitUrl($_product) and add /qty/20 or /qty/100 etc behind the url.

Something like this also:

<form action="<?php echo $this->getSubmitUrl($_product); ?>/qty/20" method="post" id="product_addtocart_form_20">
    <button class="btn" type="submit">
        <span><?php echo $this->__('Add to Cart') ?></span>
    </button>
</form>

Best Answer

Related Solutions

Magento – Add custom options while adding grouped product to cart

Magento 1.9 – Single Product with Multiple Add to Cart

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