public static function byKey($_key, $_noRemove = false)
{
$values = array('key' => $_key);
$sql = 'SELECT ' . DB::buildField(__CLASS__) . '
FROM cache
WHERE `key`=:key';
$cache = DB::Prepare($sql, $values, DB::FETCH_TYPE_ROW, PDO::FETCH_CLASS, __CLASS__);
if (!is_object($cache)) {
$cache = new self();
$cache->setKey($_key);
$cache->setDatetime(date('Y-m-d H:i:s'));
$cache->_hasExpired = true;
} else {
if (!$_noRemove && $cache->hasExpired()) {
$cache->remove();
}
}
return $cache;
}
