Month: December 2015

Displaying the child thumbnail instead of the configurable’s

Situation

Earlier in October we noticed that Magento’s “native” cart item renderer is not displaying the child thumbnail, despite our proper store configuration:

screenshot_checkout_shoppingcart

It kept showing the parent’s product thumbnail instead of displaying the child thumbnail.

Problem

I took a look at method getProductThumbnail:

 /**
 * Get product thumbnail image
 *
 * @return Mage_Catalog_Model_Product_Image
 */
 public function getProductThumbnail()
 {
   $product = $this->getChildProduct();
   if (!$product || !$product->getData('thumbnail')
   || ($product->getData('thumbnail') == 'no_selection')
   || (Mage::getStoreConfig(self::CONFIGURABLE_PRODUCT_IMAGE) == self::USE_PARENT_IMAGE)) {
     $product = $this->getProduct();
   }
   return $this->helper('catalog/image')->init($product, 'thumbnail');
 }

As you can see in line 75, it’s supposed to differentiate, however, it does not. This is because we need to check whether the config value and const value are identical (===) rather than just equal (==).

Solution

We can easily fix this by adding a new block that will extend Mage_Checkout_Block_Cart_Item_Renderer_Configurable. Montareno_Cart is one of our custom modules we were already using for cart modifications. If you don’t have such a custom module yet, just create one. This way we can overwrite method getProductThumbnail:

class Montareno_Cart_Block_Renderer_Configurable extends Mage_Checkout_Block_Cart_Item_Renderer_Configurable
 /**
 * Get product thumbnail image
 * FIX: comparison for identity rather than equality
 *
 * @return Mage_Catalog_Model_Product_Image
 */
 public function getProductThumbnail()
 {
     $product = $this->getChildProduct();
     if (!$product || !$product->getData('thumbnail')
     || ($product->getData('thumbnail') == 'no_selection')
     || (Mage::getStoreConfig(parent::CONFIGURABLE_PRODUCT_IMAGE) === parent::USE_PARENT_IMAGE)) {
       $product = $this->getProduct();
   }
   return $this->helper('catalog/image')->init($product, 'thumbnail');
 }
 
}

In order to make Magento actually use our modified renderer we need to replace checkout/cart_item_renderer_configurable in all cart layout files. Just take a look in your checkout.xml or the layout file of any other cart module you’re might using. This is an example of how our modifying module’s xml could look like:

    <default>
        <reference name="cart_sidebar">
        	<action method="addItemRender"><type>configurable</type><block>montareno_cart/renderer_configurable</block><template>checkout/cart/sidebar/default.phtml</template></action>
        </reference>
    </default>

    <checkout_cart_index>
        <reference name="checkout.cart">
        	<action method="addItemRender"><type>configurable</type><block>montareno_cart/renderer_configurable</block><template>checkout/cart/item/default.phtml</template></action>
        </reference>
    </checkout_cart_index>

    <checkout_onepage_review translate="label">
        <reference name="root">
            <action method="addItemRender"><type>configurable</type><block>montareno_cart/renderer_configurable</block><template>checkout/onepage/review/item.phtml</template></action>
        </reference>
    </checkout_onepage_review>

If you are offering multishipping in your store, you have to adjust these layout tags, too.

(At the time of writing we were working on a Magento CE 1.9.2.2 install on Ubuntu 12.04 / PHP 5.3.10)

Customer Registration not possible

Problem

When submitting the customers registration form, no account gets created. Instead, we get send back to on an empty registration form, customer registration not possible. No errors shown or logged.

Cause & Solution

Our registration’s template file (built from rwd) was missing the formkey-block needed for CSRF protection, so it was quite simple to fix:
Open app/design/frontend/drp/default/template/persistent/customer/form/register.phtml and add the following line somewhere between the form tags (I added it right after the opening tag):

<?php echo $this->getBlockHtml('formkey'); ?>

Sources

I got to the cause of this problem through this stackexchange question, thanks.

 

(At the time of writing we were working on a Magento CE 1.9.2.2 install on Ubuntu 12.04 / PHP 5.3.10)