/**
* Either saves or return a CartShipping model based
* on the user's shopping cart.
*
* @return CartShipping|null
*/
public static function getOrCreateCartShipping()
{
$objShipping = null;
// If we have a shipping object already, update it, otherwise create it.
if (Yii::app()->shoppingcart->shipping_id !== null) {
$objShipping = CartShipping::model()->findByPk(Yii::app()->shoppingcart->shipping_id);
} else {
$objShipping = new CartShipping();
if ($objShipping->save() === false) {
Yii::log("Error saving Cart Shipping:\n" . print_r($objShipping->getErrors(), true), 'error', 'application.' . __CLASS__ . '.' . __FUNCTION__ . '.' . __LINE__);
}
}
return $objShipping;
}
