/**
* Gets the first page url parameter
* @return PageUrlParameter Returns the first parameter or null if none exists
*/
public function TopMost()
{
$sql = Access::SqlBuilder();
$tblParams = PageUrlParameter::Schema()->Table();
$where = $sql->Equals($tblParams->Field('PageUrl'), $sql->Value($this->pageUrl->GetID()))->And_($sql->IsNull($tblParams->Field('Previous')));
return PageUrlParameter::Schema()->First($where);
}
/**
* Gets the url for a page url entity
* @param PageUrl $pageUrl The page url as stored in the database
* @param array $additionalParameters Additional parameters; will override stored parameters with same keys
* @return string Returns the page url
*/
static function Url(PageUrl $pageUrl, array $additionalParameters = array())
{
$list = new PageParamListProvider($pageUrl);
$params = $list->ToArray();
foreach ($additionalParameters as $key => $value) {
$params[$key] = $value;
}
return self::PageUrl($pageUrl->GetPage(), $params, $pageUrl->GetFragment());
}
/**
* Clears the parameters of the page url
* @param PageUrl $pageUrl The page url
*/
private function ClearParams(PageUrl $pageUrl)
{
$sql = Access::SqlBuilder();
$tblParams = PageUrlParameter::Schema()->Table();
$where = $sql->Equals($tblParams->Field('PageUrl'), $sql->Value($pageUrl->GetID()));
PageUrlParameter::Schema()->Delete($where);
}
