Location: PHPKode > projects > Selling Made Simple E-commerce Solution > sms/app/plugins/module_coupons/controllers/event_controller.php
<?php 
/** SMS - Selling Made Simple
 * Copyright 2007 by Kevin Grandon (hide@address.com)
 * This project's homepage is: http://sellingmadesimple.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * BUT withOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
**/

class EventController extends ModuleCouponsAppController {
	var $uses = null;
	
	function utilize_coupon()
	{
		global $order;
				
		if(empty($_POST['module_coupon_code']))
			return;
		
		loadModel('ModuleCoupon');
		$this->ModuleCoupon =& new ModuleCoupon();			
		
		$coupon = $this->ModuleCoupon->find(array('code' => $_POST['module_coupon_code']));
		// Check restrictions
		if(count($order['OrderProduct']) < $coupon['ModuleCoupon']['min_product_count'])
			$invalid_msg = 'Not enough products in cart for coupon.  Requires: ' . $coupon['ModuleCoupon']['min_product_count'] . ' products.';
		elseif(count($order['OrderProduct']) > $coupon['ModuleCoupon']['max_product_count'])
			$invalid_msg = 'Too many products in cart for coupon.  Requires less than: ' . $coupon['ModuleCoupon']['min_product_count'] . ' products.';	
		elseif($order['Order']['total'] < $coupon['ModuleCoupon']['min_order_total'])
			$invalid_msg = 'Order total not enough.  Requires at least: ' . $coupon['ModuleCoupon']['min_order_total'] . '.';	
		elseif($order['Order']['total'] > $coupon['ModuleCoupon']['max_order_total'])
			$invalid_msg = 'Order total too high.  Requires less than: ' . $coupon['ModuleCoupon']['min_order_total'] . '.';				
	
		if(isset($invalid_msg))
		{
			echo '<div class="error">' . $invalid_msg . '</div>';
			return;
		}
	
		// Take off the discounts
		$discount = 0;	
		if($coupon['ModuleCoupon']['percent_off_total'] > 0)
			$discount = $discount - (($coupon['ModuleCoupon']['percent_off_total']/100)*$order['Order']['total']);
		if($coupon['ModuleCoupon']['amount_off_total'] > 0)
			$discount = $discount - $coupon['ModuleCoupon']['amount_off_total'];
		if($coupon['ModuleCoupon']['free_shipping'] == 1)
			$discount = $discount - $order['Order']['shipping'];
		
		$coupon_product = array();
		$coupon_product['OrderProduct']['order_id'] = $order['Order']['id'];
		$coupon_product['OrderProduct']['order_id'] = $order['Order']['id'];
		$coupon_product['OrderProduct']['name'] = 'Coupon: ' . $coupon['ModuleCoupon']['name'] . ' - ' . $coupon['ModuleCoupon']['code'];
		$coupon_product['OrderProduct']['quantity'] = 1;
		$coupon_product['OrderProduct']['price'] = $discount;	

		// Get the content_id for the new product
		loadModel('Content');
		$this->Content =& new Content();
		$content_page = $this->Content->findByAlias('coupon-details');
		$coupon_product['OrderProduct']['content_id'] = $content_page['Content']['id'];
	
		// Load the OrderProduct model for saving and error checking
		loadModel('OrderProduct');
		$this->OrderProduct =& new OrderProduct();
		
		// Make sure this coupon isn't already in our 'cart'	
		$coupon_count = $this->OrderProduct->findCount(array('order_id' => $order['Order']['id'], 'name' => $coupon_product['OrderProduct']['name']));
		if($coupon_count > 0)
		{
			echo '<div class="error">Error: Coupon already used.</div>';
			return;
		}
		
		// Save the new coupon as an order product
		$this->OrderProduct->save($coupon_product);
		
		// Save the new order totals
		loadComponent('Order');
		$this->Order =& new Order();
		
		$order = $this->Order->read(null,$_SESSION['Customer']['order_id']);
		$order['Order']['total'] = 	$order['Order']['total'] + $discount;

		$this->Order->save($order);
	}
	


}

?>
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