Add own custom option and display on sales order in magento

Question

I need to display my custom option in.

app\design\adminhtml\default\default\template\sales\order\view\items\renderer\default.phtml

Database information:

Table Name : sales_flat_order_item

Row_name : product_options

value :

a:2:{s:15:"info_buyRequest";a:4:{s:4:"uenc";s:96:"aHR0cDovL2xvY2FsaG9zdC9wNi9kaWFtb25kcy9wcm9kdWN0L2FkZHRvY2FydC9wcm9kdWN0LzI5NzQ2L3NpemUvJTIwNy41";s:7:"product";s:5:"29746";s:8:"form_key";s:16:"pNUqrQJkKIWq5PTC";s:3:"qty";i:1;}s:9:"ring_size";s:11:"s:4:" 7.5";";}

"ring_size" is my custom option added while make order. Can you let me know How I can display it on admin order.

Answer 1

I was added "ring_size" as a custom option. I want to display it in admin->Sales->order. After search and implement a solution. I hope this will help to lot off people.

Frontend

\Testingorder\etc\config.xml

<checkout_cart_product_add_after> 
    <observers>
      <checkout_cart_product_add_after_handler> 
        <type>model</type> 
        <class>testingorder/observer</class> 
        <method>checkoutCartProductAddAfter</method> 
        <args></args> 
      </checkout_cart_product_add_after_handler>
    </observers>
</checkout_cart_product_add_after>

\Testingorder\Model\Observer.php

public function checkoutCartProductAddAfter(Varien_Event_Observer $observer)
{
    $item = $observer->getEvent()->getQuoteItem();
    $product = Mage::getModel('catalog/product')->load($item->getProductId());
    $ringSize = Mage::getModel('core/session')->getRingSize();
    if ($ringSize) {
        $item->addOption(array(
            "item_id" => $item->getId(),
            "product_id" => $item->getProduct()->getId(),
            "code" => "ring_size",
            "value" => serialize($ringSize)
        ));
        $item->save();
    }
}

Adminhtml

\app\design\adminhtml\default\default\template\sales\items\column\name.phtml

<?php if($custom_options = unserialize($_item->getproduct_options())):
    if($ring_size = unserialize($custom_options['ring_size'])): ?>
        <dl class="item-options">
            <dt><?php echo $this->helper('sales')->__('Ring Size') ?></dt>
            <dd><?php echo '<pre>';print_r($ring_size); ?></dd>
        </dl>
    <?php   endif;
endif; ?>