/**
* Return the link that we should redirect to.
* Only return a value if there is a legal redirection destination.
*
* @return void
*
* @author Sebastian Diel <*****@*****.**>
* @since 16.070.2014
*/
public function redirectionLink()
{
$redirectionLink = false;
if ($this->RedirectToProductGroup) {
$linkTo = $this->LinkToID ? SilvercartProductGroupPage::get()->byID($this->LinkToID) : null;
if ($linkTo instanceof SilvercartProductGroupPage && $linkTo->exists() && $linkTo->ID != $this->ID) {
$redirectionLink = $linkTo->Link();
}
}
return $redirectionLink;
}
/**
* Returns the cache key for the current configuration.
*
* @return string
*
* @author Sebastian Diel <*****@*****.**>,
* Sascha Koehler <*****@*****.**>
* @since 16.06.2014
*/
public function NavigationCacheKey()
{
$key = $this->SilvercartProductGroupPageID . '_' . $this->LastEdited . '_';
$lastEditedPage = SilvercartProductGroupPage::get()->sort('LastEdited DESC')->first();
if ($lastEditedPage) {
$key .= '_' . $lastEditedPage->LastEdited;
}
$productGroupPage = SiteTree::get()->byID($this->SilvercartProductGroupPageID);
if ($productGroupPage) {
$key .= '_' . $productGroupPage->LastEdited;
}
$currentPage = Controller::curr();
if ($currentPage) {
$key .= '_' . $currentPage->ID;
}
return $key;
}