Magento – Add a product to order with observer event before save (sales_order_save_before) magento

event-observermagento-1.8

How can i add a default product to order with observer event before save the order? I want to do these while i am creating an order for costumer from admin panel. Thank you!

config.xml

<events>
    <sales_order_save_before>
        <observers>
            <library>
                <type>model</type>
                <class>library/observer</class>
                <method>AddProductSaveBefore</method>
            </library>
        </observers>
    </sales_order_save_before>
 </events>

observer.php

 <?php 
 class MyPackage_Library_Model_Observer 
 {
     public function AddProductSaveBefore($observer) 
     {
         $order = $observer->getEvent()->getOrder();
         $product = Mage::getModel('catalog/product')->load("3");
     }
 }
 ?>

Best Answer

Event above is close, but it's sales_order_before_save

Adding a custom entity value in Order table

Related Solutions

Magento – Why is checkout_cart_save_after thrown immediately after sales_quote_save_after

If this were a standard ORM model these events would likely exist. Because the Mage_Checkout_Model_Cart model extends Varien_Object instead of Mage_Core_Model_Abstract, these events are dispatched by hand, including the passing of the cart object into the event scope. This allows for similar event-based injection of processing logic related to the cart object before and after the quote save process.

Magento – Save admin name to order_status change using an Observer

EDIT:

You can also do the following, which I would recommend over the previous solution I posted. Mostly because it doesn't use setPost, which I would consider scary.

config.xml:

<adminhtml>
  <events>
    <sales_order_status_history_save_before>
      <observers>
        <module_status_history_save_before>
          <class>module/observer</class>
          <method>commentSaveBefore</method>
        </module_status_history_save_before>
      </observers>
    </sales_order_status_history_save_before>
  </events>
</adminhtml>

Observer.php:

public function commentSaveBefore($obs) {
    $event = $obs->getEvent();
    $status = $event->getDataObject();
    $status->setComment($status->getComment().$this->_getAppend());
}

protected function _getAppend()
{
    $admin = Mage::getSingleton('admin/session')->getUser();
    $username = $admin->getUsername();
    return " : " . $username;
}

This would accomplish the same thing, except you're intercepting the model before it gets saved, allowing you to alter the comment without having to use setPost().

Original Post: You could do the following: