This document provides an overview of how to integrate PayPal payments into a Symfony application using the sfPaymentPlugin and sfPaymentPayPalPlugin. It discusses configuring the plugins, creating a transaction model, executing purchases in the controller, displaying the PayPal form in views, and validating incoming IPN requests. The summary focuses on the key steps and components involved in setting up PayPal payments with Symfony.

1. Paypal + symfony payments made simple Massimiliano Arione September, 27th 2011

2. About me 2001: PHP developer 2006: GrUSP member 2009: member of GrUSP steering committee 2010: PUG Rome president :-)

3. the flow my server Paypal server

4. the REAL flow my server Paypal server

5. plugins sfPaymentPlugin sfPaymentPayPalPlugin sfWebBrowserPlugin

6. configuration # apps/frontend/config/app.yml all : sf_payment_paypal_plugin : business : pay@garak.it test : business : pippo_12636_biz@gmail.com return : @paypal_paid cancel_return : @paypal_cancelled notify : @paypal_ipn

7. Model // lib/model/Purchase.class.php public function getTransaction() { $ gateway = new sfPaymentPayPal(); $gateway->fields['no_shipping'] = 1; $gateway->fields['item_number'] = $this->getId(); $ transaction = new sfPaymentTransaction($ gateway ); if (sfConfig::get('sf_environment') != 'prod') { $ transaction ->enableTestMode(); } $ transaction ->setAmount($this->getPrice()); $ transaction ->setCurrency('EUR'); $ transaction ->setProductName($this->getName()); return $ transaction ; }

8. Controller // apps/frontend/modules/my_module/actions/actions.class.php public function executeBuy() { $purchase = new Purchase; $this-> transaction = $purchase->getTransaction(); }

9. View // apps/frontend/modules/my_module/templates/buySuccess.php <form method=&quot;post&quot; action=&quot;<?php echo $ transaction ->getGateway()->gatewayUrl ?>&quot;> <input type=&quot;submit&quot; value=&quot;pay&quot; /> <?php foreach ($ transaction ->getGateway()->fields as $fname => $fvalue): ?> <input type=&quot;hidden&quot; name=&quot;<?php echo $fname ?>&quot; value=&quot;<?php echo $fvalue ?>&quot; /> <?php endforeach ?> </form>

10. IPN controller // apps/frontend/modules/paypal/actions/actions.class.php public function executeIpn(sfWebRequest $request) { $gateway = new sfPaymentPayPal(); $ transaction = new sfPaymentTransaction($gateway); if (sfConfig::get('sf_environment') != 'prod') $ transaction ->enableTestMode(); if ($ transaction ->validateIpn($request->getPostParameters())) { $purchase = PurchaseTable::getInstance()->find($request->getParameter('item_number')); $this->forward404Unless($purchase, 'purchase not found'); if (!$purchase->isComplete()) { if ($ transaction ->isCompleted()) $purchase->setComplete($request->getParameter('txn_id')); else $purchase->setIncomplete(); } } else { $purchase->setInvalid(); } return sfView::NONE; }

11. Thanks! Massimiliano Arione @ garakkio blog.garak.it