/**
* Checkout with PayPal image URL getter
* Spares API calls of getting "pal" variable, by putting it into cache per store view
* @return string
*/
public function getCheckoutShortcutImageUrl()
{
// get "pal" thing from cache or lookup it via API
$pal = null;
if ($this->_config->areButtonsDynamic()) {
$cacheId = self::PAL_CACHE_ID . Mage::app()->getStore()->getId();
$pal = Mage::app()->loadCache($cacheId);
if (-1 == $pal) {
$pal = null;
} elseif (!$pal) {
$pal = null;
$this->_getApi();
try {
$this->_api->callGetPalDetails();
$pal = $this->_api->getPal();
Mage::app()->saveCache($pal, $cacheId, array(Mage_Core_Model_Config::CACHE_TAG));
} catch (Exception $e) {
Mage::app()->saveCache(-1, $cacheId, array(Mage_Core_Model_Config::CACHE_TAG));
Mage::logException($e);
}
}
}
return $this->_config->getExpressCheckoutShortcutImageUrl(Mage::app()->getLocale()->getLocaleCode(), $this->_quote->getBaseGrandTotal(), $pal);
}