+
+ static function cachedQuery($cls, $qry, $expiry=3600)
+ {
+ $c = Memcached_DataObject::memcache();
+ if (!$c) {
+ $inst = new $cls();
+ $inst->query($qry);
+ return $inst;
+ }
+ $key_part = common_keyize($cls).':'.md5($qry);
+ $ckey = common_cache_key($key_part);
+ $stored = $c->get($ckey);
+ if ($stored) {
+ return new ArrayWrapper($stored);
+ }
+
+ $inst = new $cls();
+ $inst->query($qry);
+ $cached = array();
+ while ($inst->fetch()) {
+ $cached[] = clone($inst);
+ }
+ $inst->free();
+ $c->set($ckey, $cached, MEMCACHE_COMPRESSED, $expiry);
+ return new ArrayWrapper($cached);
+ }
+
+ // We overload so that 'SET NAMES "utf8"' is called for
+ // each connection
+
+ function _connect()
+ {
+ global $_DB_DATAOBJECT;
+
+ $sum = $this->_getDbDsnMD5();
+
+ if (!empty($_DB_DATAOBJECT['CONNECTIONS'][$sum]) &&
+ !PEAR::isError($_DB_DATAOBJECT['CONNECTIONS'][$sum])) {
+ $exists = true;
+ } else {
+ $exists = false;
+ }
+
+ $result = parent::_connect();
+
+ if ($result && !$exists) {
+ $DB = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
+ if (common_config('db', 'type') == 'mysql' &&
+ common_config('db', 'utf8')) {
+ $conn = $DB->connection;
+ if (!empty($conn)) {
+ if ($DB instanceof DB_mysqli) {
+ mysqli_set_charset($conn, 'utf8');
+ } else if ($DB instanceof DB_mysql) {
+ mysql_set_charset('utf8', $conn);
+ }
+ }
+ }
+ }
+
+ return $result;
+ }
+
+ // XXX: largely cadged from DB_DataObject
+
+ function _getDbDsnMD5()
+ {
+ if ($this->_database_dsn_md5) {
+ return $this->_database_dsn_md5;
+ }
+
+ $dsn = $this->_getDbDsn();
+
+ if (is_string($dsn)) {
+ $sum = md5($dsn);
+ } else {
+ /// support array based dsn's
+ $sum = md5(serialize($dsn));
+ }
+
+ return $sum;
+ }
+
+ function _getDbDsn()
+ {
+ global $_DB_DATAOBJECT;
+
+ if (empty($_DB_DATAOBJECT['CONFIG'])) {
+ DB_DataObject::_loadConfig();
+ }
+
+ $options = &$_DB_DATAOBJECT['CONFIG'];
+
+ // if the databse dsn dis defined in the object..
+
+ $dsn = isset($this->_database_dsn) ? $this->_database_dsn : null;
+
+ if (!$dsn) {
+
+ if (!$this->_database) {
+ $this->_database = isset($options["table_{$this->__table}"]) ? $options["table_{$this->__table}"] : null;
+ }
+
+ if ($this->_database && !empty($options["database_{$this->_database}"])) {
+ $dsn = $options["database_{$this->_database}"];
+ } else if (!empty($options['database'])) {
+ $dsn = $options['database'];
+ }
+ }
+
+ if (!$dsn) {
+ throw new Exception("No database name / dsn found anywhere");
+ }
+
+ return $dsn;
+ }