Add a method the memcached_object that lets it cache query results
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@ -21,7 +21,7 @@ if (!defined('LACONICA')) { exit(1); }
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require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
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class Memcached_DataObject extends DB_DataObject
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class Memcached_DataObject extends DB_DataObject
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{
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function &staticGet($cls, $k, $v=null)
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{
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@ -69,7 +69,7 @@ class Memcached_DataObject extends DB_DataObject
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$result = parent::insert();
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return $result;
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}
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function update($orig=null)
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{
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if (is_object($orig) && $orig instanceof Memcached_DataObject) {
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@ -81,21 +81,21 @@ class Memcached_DataObject extends DB_DataObject
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}
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return $result;
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}
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function delete()
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{
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$this->decache(); # while we still have the values!
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return parent::delete();
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}
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static function memcache() {
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return common_memcache();
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}
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static function cacheKey($cls, $k, $v) {
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return common_cache_key(strtolower($cls).':'.$k.':'.$v);
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}
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static function getcached($cls, $k, $v) {
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$c = Memcached_DataObject::memcache();
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if (!$c) {
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@ -114,7 +114,7 @@ class Memcached_DataObject extends DB_DataObject
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}
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return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
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}
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function encache()
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{
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$c = $this->memcache();
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@ -122,7 +122,7 @@ class Memcached_DataObject extends DB_DataObject
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return false;
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} else {
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$pkey = array();
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$pval = array();
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$pval = array();
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$types = $this->keyTypes();
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ksort($types);
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foreach ($types as $key => $type) {
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@ -139,7 +139,7 @@ class Memcached_DataObject extends DB_DataObject
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$c->set($this->cacheKey($this->tableName(), $pkeys, $pvals), $this);
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}
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}
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function decache()
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{
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$c = $this->memcache();
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@ -147,7 +147,7 @@ class Memcached_DataObject extends DB_DataObject
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return false;
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} else {
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$pkey = array();
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$pval = array();
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$pval = array();
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$types = $this->keyTypes();
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ksort($types);
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foreach ($types as $key => $type) {
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@ -201,4 +201,33 @@ class Memcached_DataObject extends DB_DataObject
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}
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return $search_engine;
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}
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static function cachedQuery($cls, $qry, $expiry=3600)
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{
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$c = Memcached_DataObject::memcache();
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if (!$c) {
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$inst = new $cls();
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$inst->query($qry);
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return $cls;
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}
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$key_part = common_keyize($cls).':'.md5($qry);
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$ckey = common_cache_key($key_part);
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$stored = $c->get($ckey);
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if ($stored) {
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return new ArrayWrapper($stored);
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}
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$inst = new $cls();
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$result = $inst->query($qry);
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if (!$result) {
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return $inst;
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}
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$cached = array();
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while ($inst->fetch()) {
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$cached[] = clone($inst);
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}
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$inst->free();
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$c->set($ckey, $cached, MEMCACHE_COMPRESSED, $expiry);
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return ArrayWrapper($cached);
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}
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}
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