/**
* Generates an array with terms and hits
*
* @return Tags as array with terms and hits
*/
protected function getFrequentSearchTerms()
{
$terms = array();
// Use configuration as cache identifier
$identifier = 'frequentSearchesTags_' . md5(serialize($this->configuration['search.']['frequentSearches.']));
if ($this->cacheInstance->has($identifier)) {
$terms = $this->cacheInstance->get($identifier);
} else {
$terms = $this->getFrequentSearchTermsFromStatistics();
if ($this->configuration['search.']['frequentSearches.']['sortBy'] == 'hits') {
arsort($terms);
} else {
ksort($terms);
}
$lifetime = NULL;
if (isset($this->configuration['search.']['frequentSearches.']['cacheLifetime'])) {
$lifetime = intval($this->configuration['search.']['frequentSearches.']['cacheLifetime']);
}
$this->cacheInstance->set($identifier, $terms, array(), $lifetime);
}
return $terms;
}
/**
* Constructs the cache
*
* @param string A identifier which describes this cache
* @param t3lib_cache_backend_Backend Backend to be used for this cache
* @author Robert Lemke <*****@*****.**>
* @throws InvalidArgumentException if the identifier doesn't match PATTERN_ENTRYIDENTIFIER
* @internal
*/
public function __construct($identifier, t3lib_cache_backend_Backend $backend)
{
parent::__construct($identifier, $backend);
$this->initializeObject();
}