/**
* Sitetree getter, caches the whole sitetree per logged in user groups.
* If a $partialChild is defined then the cache is bypassed and a partial sitetree is returned.
*
* @param Int $id Optional id used to define the parent to kick off from.
* @param SiteTree $partialChild Optional partial child to get a site tree section from root.
*/
public function getStructure($id = 0, $partialChild = null)
{
if (!Member::currentUserID()) {
throw new Exception('SiteTreeOrigamiApi::getStructure Not logged in');
}
if ($partialChild) {
$stack = array_reverse($partialChild->parentStack());
$result = $this->_structure($id, $stack);
} else {
// Check the cache.
SS_Cache::set_cache_lifetime('SiteTree_Groups', 60 * 60);
//one hour
$cache = SS_Cache::factory('SiteTree_Groups', 'Output', array('automatic_serialization' => true));
// If there isn't a cached response call the API.
if (!($result = $cache->load(SiteTreeOrigamiApi::get_cache_key()))) {
$result = $this->_structure($id);
$cache->save($result, SiteTreeOrigamiApi::get_cache_key());
}
}
return $result;
}