/**
* @param $valueToMatch
* @param $sql
* @return array of IDs, or null if the returnset is too big to cache
*/
private function getIdsFromCache($valueToMatch, $sql)
{
$cacheKey = $this->getCacheKey($valueToMatch, $sql);
if ($this->cache->contains($cacheKey) === true) {
// TODO: hits
$this->logger->debug("Segment subquery cache HIT (for '{$valueToMatch}' and SQL '{$sql})");
return $this->cache->fetch($cacheKey);
}
$ids = $this->fetchActionIdsFromDb($valueToMatch, $sql);
if ($this->isTooBigToCache($ids)) {
$this->logger->debug("Segment subquery cache SKIPPED SAVE (too many IDs returned by subquery: %s ids)'", array(count($ids)));
$this->cache->save($cacheKey, $ids = null, $this->lifetime);
return null;
}
$this->cache->save($cacheKey, $ids, $this->lifetime);
$this->logger->debug("Segment subquery cache SAVE (for '{$valueToMatch}' and SQL '{$sql}')'");
return $ids;
}
