/**
* Initializes the caching.
* Should be called before the first time anything is added via addCachedHTML.
*
* @since 1.20
*
* @param integer|null $cacheExpiry Sets the cache expiry, either ttl in seconds or unix timestamp.
* @param boolean|null $cacheEnabled Sets if the cache should be enabled or not.
*/
public function startCache($cacheExpiry = null, $cacheEnabled = null)
{
$this->cacheHelper = new CacheHelper();
$this->cacheHelper->setCacheEnabled($this->cacheEnabled);
$this->cacheHelper->setOnInitializedHandler(array($this, 'onCacheInitialized'));
$keyArgs = $this->getCacheKey();
if (array_key_exists('action', $keyArgs) && $keyArgs['action'] === 'purge') {
unset($keyArgs['action']);
}
$this->cacheHelper->setCacheKey($keyArgs);
if ($this->getRequest()->getText('action') === 'purge') {
$this->cacheHelper->rebuildOnDemand();
}
$this->cacheHelper->startCache($cacheExpiry, $cacheEnabled);
}