/**
* @param QuerySet $q
* @param int $lifeTime
* @param Cache $cacheBackend
*/
public function __construct(QuerySet $q, $lifeTime = 3600, Cache $cacheBackend = null)
{
$this->query = $q;
if ($cacheBackend) {
$this->cache = $cacheBackend;
} else {
$this->cache = new PhpFileCache(DJA_APP_CACHE);
}
$cacheKey = $q->_md()->getDbTableName() . '_' . sha1(strval($q));
if ($this->cache->contains($cacheKey)) {
$data = $this->cache->fetch($cacheKey);
} else {
$data = $this->getData();
$this->cache->save($cacheKey, $data, $lifeTime);
}
$className = $q->_md()->getModelClass();
foreach ($data as $rowData) {
$this->data[] = new $className($rowData, false);
}
}
