<?php 
// attempt the charge (array $data, boolean $testing)
$response = $this->Ggapi->ggProcess($data, true);

// update the order table with the response
if ($response) {
    if ($response['r_approved'] == 'APPROVED') {
        // merge the response data with the order data
        $this->data['Order'] = array_merge($this->data['Order'], $response);
    } else {
        // card was DECLINED
        $error = explode(':', $response['r_error']);
        $this->Session->setFlash(
            'Your credit card was declined. The message was: '.$error[1],
            'modal',
            array('class' => 'modal error')
        );
        $this->redirect(array('controller' => 'orders', 'action' => 'checkout'));
    }
} else {
    // no response from the gateway
    $this->Session->setFlash(
        'There was a problem connecting to our payment gateway, please try again.',
        'modal',
        array('class' => 'modal error')
    );
    $this->redirect(array('controller' => 'orders', 'action' => 'checkout'));
}
?>