public function setUpOnce()
{
if (!ShoppingCart_Controller::has_extension('ShoppingCartAjax')) {
ShoppingCart_Controller::add_extension('ShoppingCartAjax');
}
if (!VariationForm::has_extension('ShoppingCartAjax')) {
VariationForm::add_extension('ShoppingCartAjax');
}
if (!Controller::has_extension('AjaxControllerExtension')) {
Controller::add_extension('AjaxControllerExtension');
}
parent::setUpOnce();
}
/**
* Update the variations of a product (Cart Page)
*
* @see 'addtocart' function of VariationForm ($this->owner)
* @param SS_HTTPRequest $request
* @param AjaxHTTPResponse $response
* @param Buyable $variation [optional]
* @param int $quantity [optional]
* @param VariationForm $form [optional]
*/
public function updateVariationFormResponse(&$request, &$response, $variation = null, $quantity = 1, $form = null)
{
if ($request->isAjax()) {
if (!$response) {
$response = $this->owner->getResponse();
}
$response->removeHeader('Content-Type');
$response->addHeader('Content-Type', 'application/json; charset=utf-8');
$shoppingcart = ShoppingCart::curr();
$shoppingcart->calculate();
// recalculate the shopping cart
$data = array('id' => (string) $variation->ID, 'message' => array('content' => $form->Message(), 'type' => $form->MessageType()));
$form->clearMessage();
// include totals if required
if ($shoppingcart) {
$data['subTotal'] = $shoppingcart->SubTotal();
$data['grandTotal'] = $shoppingcart->GrandTotal();
}
$this->owner->extend('updateVariationFormResponseShopJsonResponse', $data, $request, $response, $variation, $quantity, $form);
$response->setBody(json_encode($data));
}
}
