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cache failure to find in memcached

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This commit is contained in:
Evan Prodromou 2009-07-05 11:31:39 -04:00
parent eedfaa7d1a
commit 9f6bea473e
1 changed files with 40 additions and 10 deletions
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48
classes/Memcached_DataObject.php
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@ -33,21 +33,41 @@ class Memcached_DataObject extends DB_DataObject
$k = $keys[0]; $k = $keys[0];
unset($i); unset($i);
} }
$i = Memcached_DataObject::getcached($cls, $k, $v); $i = self::getcached($cls, $k, $v);
if ($i) { if ($i) {
return $i; return $i;
} else { } else {
$i = DB_DataObject::staticGet($cls, $k, $v); $i = DB_DataObject::staticGet($cls, $k, $v);
if ($i) { if ($i) {
$i->encache(); $i->encache();
} else {
self::cachenull($cls, $k, $v);
} }
return $i; return $i;
} }
} }
function cachenull($cls, $k, $v)
{
$c = self::memcache();
if (empty($c)) {
return;
}
$c->set(self::cacheKey($cls, $k, $v), null);
}
function multicachenull($cls, $kv)
{
$c = self::memcache();
if (empty($c)) {
return;
}
$c->set(self::multicachekey($cls, $kv), null);
}
function &pkeyGet($cls, $kv) function &pkeyGet($cls, $kv)
{ {
$i = Memcached_DataObject::multicache($cls, $kv); $i = self::multicache($cls, $kv);
if ($i) { if ($i) {
return $i; return $i;
} else { } else {
@ -58,6 +78,7 @@ class Memcached_DataObject extends DB_DataObject
if ($i->find(true)) { if ($i->find(true)) {
$i->encache(); $i->encache();
} else { } else {
self::multicachenull($cls, $kv);
$i = null; $i = null;
} }
return $i; return $i;
@ -67,6 +88,9 @@ class Memcached_DataObject extends DB_DataObject
function insert() function insert()
{ {
$result = parent::insert(); $result = parent::insert();
if ($result) {
$this->encache();
}
return $result; return $result;
} }
@ -97,11 +121,11 @@ class Memcached_DataObject extends DB_DataObject
} }
static function getcached($cls, $k, $v) { static function getcached($cls, $k, $v) {
$c = Memcached_DataObject::memcache(); $c = self::memcache();
if (!$c) { if (!$c) {
return false; return false;
} else { } else {
return $c->get(Memcached_DataObject::cacheKey($cls, $k, $v)); return $c->get(self::cacheKey($cls, $k, $v));
} }
} }
@ -168,15 +192,21 @@ class Memcached_DataObject extends DB_DataObject
function multicache($cls, $kv) function multicache($cls, $kv)
{ {
ksort($kv); $c = self::memcache();
$c = Memcached_DataObject::memcache();
if (!$c) { if (!$c) {
return false; return false;
} else { } else {
return $c->get(self::multicachekey($cls, $kv));
}
}
function multicachekey($cls, $kv)
{
ksort($kv);
$pkeys = implode(',', array_keys($kv)); $pkeys = implode(',', array_keys($kv));
$pvals = implode(',', array_values($kv)); $pvals = implode(',', array_values($kv));
return $c->get(Memcached_DataObject::cacheKey($cls, $pkeys, $pvals));
} return self::cacheKey($cls, $pkeys, $pvals);
} }
function getSearchEngine($table) function getSearchEngine($table)
@ -211,7 +241,7 @@ class Memcached_DataObject extends DB_DataObject
static function cachedQuery($cls, $qry, $expiry=3600) static function cachedQuery($cls, $qry, $expiry=3600)
{ {
$c = Memcached_DataObject::memcache(); $c = self::memcache();
if (!$c) { if (!$c) {
$inst = new $cls(); $inst = new $cls();
$inst->query($qry); $inst->query($qry);