require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
-class Memcached_DataObject extends DB_DataObject
+class Memcached_DataObject extends DB_DataObject
{
- static function &staticGet($cls, $k, $v=NULL) {
- $i = $this->getcached($cls, $k, $v);
- if (!is_null($i)) {
- return $i;
- } else {
- $i = DB_DataObject::staticGet($cls, $k, $v);
- if (!is_null($i)) {
- $i->encache();
- }
- return $i;
- }
- }
-
- function insert() {
- $result = parent::insert();
- if ($result) {
- $this->encache();
- }
- return $result;
- }
-
- function update($orig=NULL) {
- if (!is_null($orig)) {
- $orig->decache(); # might be different keys
- }
- $result = parent::update($orig);
- if ($result) {
- $this->encache();
- }
- }
-
- function delete() {
- $this->decache(); # while we still have the values!
- return parent::delete();
- }
-
- static function memcache() {
- if (!common_config('memcached', 'enabled')) {
- return NULL;
- } else {
- $cache = new Memcache();
- $res = $cache->connect(common_config('memcached', 'server'),
- common_config('memcached', 'port'));
- return ($res) ? $cache : NULL;
- }
- }
-
- static function cacheKey($cls, $k, $v) {
- return common_cache_key(strtolower($cls) . ':' .
- $k . ':' .
- $v);
- }
-
- static function getcached($cls, $k, $v) {
- $c = Memcached_DataObject::memcache();
- if (!$c) {
- return false;
- } else {
- return $c->get(Memcached_DataObject::cacheKey($cls, $k, $v));
- }
- }
-
- function keyTypes() {
- global $_DB_DATAOBJECT;
+ function &staticGet($cls, $k, $v=null)
+ {
+ if (is_null($v)) {
+ $v = $k;
+ # XXX: HACK!
+ $i = new $cls;
+ $keys = $i->keys();
+ $k = $keys[0];
+ unset($i);
+ }
+ $i = Memcached_DataObject::getcached($cls, $k, $v);
+ if ($i) {
+ return $i;
+ } else {
+ $i = DB_DataObject::staticGet($cls, $k, $v);
+ if ($i) {
+ $i->encache();
+ }
+ return $i;
+ }
+ }
+
+ function &pkeyGet($cls, $kv)
+ {
+ $i = Memcached_DataObject::multicache($cls, $kv);
+ if ($i) {
+ return $i;
+ } else {
+ $i = new $cls();
+ foreach ($kv as $k => $v) {
+ $i->$k = $v;
+ }
+ if ($i->find(true)) {
+ $i->encache();
+ } else {
+ $i = null;
+ }
+ return $i;
+ }
+ }
+
+ function insert()
+ {
+ $result = parent::insert();
+ return $result;
+ }
+
+ function update($orig=null)
+ {
+ if (is_object($orig) && $orig instanceof Memcached_DataObject) {
+ $orig->decache(); # might be different keys
+ }
+ $result = parent::update($orig);
+ if ($result) {
+ $this->encache();
+ }
+ return $result;
+ }
+
+ function delete()
+ {
+ $this->decache(); # while we still have the values!
+ return parent::delete();
+ }
+
+ static function memcache() {
+ return common_memcache();
+ }
+
+ static function cacheKey($cls, $k, $v) {
+ return common_cache_key(strtolower($cls).':'.$k.':'.$v);
+ }
+
+ static function getcached($cls, $k, $v) {
+ $c = Memcached_DataObject::memcache();
+ if (!$c) {
+ return false;
+ } else {
+ return $c->get(Memcached_DataObject::cacheKey($cls, $k, $v));
+ }
+ }
+
+ function keyTypes()
+ {
+ global $_DB_DATAOBJECT;
if (!isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"])) {
- $this->databaseStructure();
+ $this->databaseStructure();
+
+ }
+ return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
+ }
+
+ function encache()
+ {
+ $c = $this->memcache();
+ if (!$c) {
+ return false;
+ } else {
+ $pkey = array();
+ $pval = array();
+ $types = $this->keyTypes();
+ ksort($types);
+ foreach ($types as $key => $type) {
+ if ($type == 'K') {
+ $pkey[] = $key;
+ $pval[] = $this->$key;
+ } else {
+ $c->set($this->cacheKey($this->tableName(), $key, $this->$key), $this);
+ }
+ }
+ # XXX: should work for both compound and scalar pkeys
+ $pvals = implode(',', $pval);
+ $pkeys = implode(',', $pkey);
+ $c->set($this->cacheKey($this->tableName(), $pkeys, $pvals), $this);
+ }
+ }
+
+ function decache()
+ {
+ $c = $this->memcache();
+ if (!$c) {
+ return false;
+ } else {
+ $pkey = array();
+ $pval = array();
+ $types = $this->keyTypes();
+ ksort($types);
+ foreach ($types as $key => $type) {
+ if ($type == 'K') {
+ $pkey[] = $key;
+ $pval[] = $this->$key;
+ } else {
+ $c->delete($this->cacheKey($this->tableName(), $key, $this->$key));
+ }
+ }
+ # should work for both compound and scalar pkeys
+ # XXX: comma works for now but may not be safe separator for future keys
+ $pvals = implode(',', $pval);
+ $pkeys = implode(',', $pkey);
+ $c->delete($this->cacheKey($this->tableName(), $pkeys, $pvals));
+ }
+ }
+
+ function multicache($cls, $kv)
+ {
+ ksort($kv);
+ $c = Memcached_DataObject::memcache();
+ if (!$c) {
+ return false;
+ } else {
+ $pkeys = implode(',', array_keys($kv));
+ $pvals = implode(',', array_values($kv));
+ return $c->get(Memcached_DataObject::cacheKey($cls, $pkeys, $pvals));
+ }
+ }
+
+ function getSearchEngine($table)
+ {
+ require_once INSTALLDIR.'/lib/search_engines.php';
+ static $search_engine;
+ if (!isset($search_engine)) {
+ $connected = false;
+ if (common_config('sphinx', 'enabled')) {
+ $search_engine = new SphinxSearch($this, $table);
+ $connected = $search_engine->is_connected();
+ }
+
+ // unable to connect to sphinx' search daemon
+ if (!$connected) {
+ if ('mysql' === common_config('db', 'type')) {
+ $search_engine = new MySQLSearch($this, $table);
+ } else {
+ $search_engine = new PGSearch($this, $table);
+ }
+ }
+ }
+ return $search_engine;
+ }
+
+ static function cachedQuery($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;
+ $exists = !empty($this->_database_dsn_md5) &&
+ isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]);
+ $result = parent::_connect();
+ if (!$exists) {
+ $DB = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
+ if (common_config('db', 'type') == 'mysql' &&
+ common_config('db', 'utf8')) {
+ $conn = $DB->connection;
+ if ($DB instanceof DB_mysqli) {
+ mysqli_set_charset($conn, 'utf8');
+ } else if ($DB instanceof DB_mysql) {
+ mysql_set_charset('utf8', $conn);
+ }
+ }
}
- return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
- }
-
- function encache() {
- $c = $this->memcache();
- if (!$c) {
- return false;
- } else {
- $primary = array();
- $types = ksort($this->keyTypes());
- foreach ($types as $key => $type) {
- if ($type == 'K') {
- $primary[] = $key;
- } else {
- $c->set($this->cacheKey($this->tableName(), $key, $this->$key),
- $this);
- }
- }
- # XXX: figure out what to do with compound pkeys
- if (count($primary) == 1) {
- $key = $primary[0];
- $c->set($this->cacheKey($this->tableName(), $key, $this->$key),
- $this);
- }
- }
- }
-
- function decache() {
- $c = $this->memcache();
- if (!$c) {
- return false;
- } else {
- $primary = array();
- $types = ksort($this->keyTypes());
- foreach ($types as $key => $type) {
- if ($type == 'K') {
- $primary[] = $this->$key;
- } else {
- $c->delete($this->cacheKey($this->tableName(), $key, $this->$key),
- $this);
- }
- }
- # XXX: figure out what to do with compound pkeys
- if (count($primary) == 1) {
- $key = $primary[0];
- $c->delete($this->cacheKey($this->tableName(), $key, $this->$key),
- $this);
- }
- }
- }
+ return $result;
+ }
}
projects / quix0rs-gnu-social.git / blobdiff