+
+ function raiseError($message, $type = null, $behaviour = null)
+ {
+ throw new ServerException("DB_DataObject error [$type]: $message");
+ }
+
+ static function cacheGet($keyPart)
+ {
+ $c = self::memcache();
+
+ if (empty($c)) {
+ return false;
+ }
+
+ $cacheKey = common_cache_key($keyPart);
+
+ return $c->get($cacheKey);
+ }
+
+ static function cacheSet($keyPart, $value)
+ {
+ $c = self::memcache();
+
+ if (empty($c)) {
+ return false;
+ }
+
+ $cacheKey = common_cache_key($keyPart);
+
+ return $c->set($cacheKey, $value);
+ }