Observer.php

<?php

/**
 * Magemlm
 *
 * @category    Qsolutions
 * @package     Qsolutions_Magemlm
 * @copyright   Copyright (c) 2013 Q-Solutions  (http://www.qsolutions.com.pl)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

class Qsolutions_Magemlm_Model_Observer {

    public function __construct () {

    } // public function __construct () {

    public function getLink(Varien_Event_Observer $observer) {

        if (isset ($_GET['refId']) ) {
            $cookie = Mage::getSingleton('core/cookie');
            $cookie->set('refId', $_GET['refId'] ,time()+86400,'/');
        }
    } // public function registerPartner($observer) {

    public function saveCustomerMlmData(Varien_Event_Observer $observer) {

        $customer   = $observer->getEvent()->getCustomer();
        $customerId = $customer->getId();
        $referrerId = Mage::app()->getRequest()->getPost('magemlm_referrer');

        // load magemlm / customer model
        $customerMagemlm   = Mage::getModel('magemlm/customer')->load($customerId , 'customer_id');

        if(isset($_FILES['magemlm_customer_picture']['name']) and (file_exists($_FILES['magemlm_customer_picture']['tmp_name']))) {
            try {

                $ext = pathinfo($_FILES['magemlm_customer_picture']['name'], PATHINFO_EXTENSION);

                $uploader = new Varien_File_Uploader('magemlm_customer_picture');
                $uploader->setAllowedExtensions(array('jpg','jpeg','gif','png')); // or pdf or anything

                $uploader->setAllowRenameFiles(false);
                $uploader->setFilesDispersion(false);

                $path = Mage::getBaseDir('media') . DS . 'magemlm' . DS;

                $fileName = $customer->getId() . '_' . date('Ymdhis') . '.' . $ext;
                $uploader->save($path, $fileName); // save file

                $customerMagemlm->setCustomerId($customerId);
                $customerMagemlm->setReffererId($referrerId);
                $customerMagemlm->setMagemlmImage($fileName);
                $customerMagemlm->save();

                } catch(Exception $e) {
            }
       } else {
            $customerMagemlm->setCustomerId($customerId);
            $customerMagemlm->setReferrerId($referrerId);
            $customerMagemlm->save();
        }
    }


    public function registerCustomer (Varien_Event_Observer $observer) {

    $customer   = $observer->getEvent()->getCustomer();
        $customerId = $customer->getId();
        $referrerId = Mage::getSingleton('core/cookie')->get('refId');

        $customerMagemlm   = Mage::getModel('magemlm/customer')->load($customerId , 'customer_id');

        $customerMagemlm->setCustomerId($customerId);
        $customerMagemlm->setReferrerId($referrerId);
        $customerMagemlm->save();
    }




    public function getCustomer() {
        return Mage::registry('customer');
    } // public function getCustomer() {


    // observer function to get Compensation data
    public function saveCompensation(Varien_Event_Observer $observer) {

        $order      = new Mage_Sales_Model_Order();
                $orderId    = Mage::getSingleton('checkout/session')->getLastRealOrderId();
        $order->loadByIncrementId($orderId);

        $orderPriceExldTax  = $order->getBaseSubtotal(); // calculate commission for price WITHOUT TAX
        Mage::getModel('magemlm/commissions')->calculateCommissions(Mage::helper('customer')->getCustomer()->getId() , $orderId, $orderPriceExldTax);

    }

}