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PhabricatorUserCache.php
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Mon, Feb 17, 07:06

PhabricatorUserCache.php
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<?php
final class PhabricatorUserCache extends PhabricatorUserDAO {
protected $userPHID;
protected $cacheIndex;
protected $cacheKey;
protected $cacheData;
protected $cacheType;
protected function getConfiguration() {
return array(
self::CONFIG_TIMESTAMPS => false,
self::CONFIG_COLUMN_SCHEMA => array(
'cacheIndex' => 'bytes12',
'cacheKey' => 'text255',
'cacheData' => 'text',
'cacheType' => 'text32',
),
self::CONFIG_KEY_SCHEMA => array(
'key_usercache' => array(
'columns' => array('userPHID', 'cacheIndex'),
'unique' => true,
),
'key_cachekey' => array(
'columns' => array('cacheIndex'),
),
'key_cachetype' => array(
'columns' => array('cacheType'),
),
),
) + parent::getConfiguration();
}
public function save() {
$this->cacheIndex = Filesystem::digestForIndex($this->getCacheKey());
return parent::save();
}
public static function writeCache(
PhabricatorUserCacheType $type,
$key,
$user_phid,
$raw_value) {
self::writeCaches(
array(
array(
'type' => $type,
'key' => $key,
'userPHID' => $user_phid,
'value' => $raw_value,
),
));
}
public static function writeCaches(array $values) {
if (PhabricatorEnv::isReadOnly()) {
return;
}
if (!$values) {
return;
}
$table = new self();
$conn_w = $table->establishConnection('w');
$sql = array();
foreach ($values as $value) {
$key = $value['key'];
$sql[] = qsprintf(
$conn_w,
'(%s, %s, %s, %s, %s)',
$value['userPHID'],
PhabricatorHash::digestForIndex($key),
$key,
$value['value'],
$value['type']->getUserCacheType());
}
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
foreach (PhabricatorLiskDAO::chunkSQL($sql) as $chunk) {
queryfx(
$conn_w,
'INSERT INTO %T (userPHID, cacheIndex, cacheKey, cacheData, cacheType)
VALUES %Q
ON DUPLICATE KEY UPDATE
cacheData = VALUES(cacheData),
cacheType = VALUES(cacheType)',
$table->getTableName(),
$chunk);
}
unset($unguarded);
}
public static function readCaches(
PhabricatorUserCacheType $type,
$key,
array $user_phids) {
$table = new self();
$conn = $table->establishConnection('r');
$rows = queryfx_all(
$conn,
'SELECT userPHID, cacheData FROM %T WHERE userPHID IN (%Ls)
AND cacheType = %s AND cacheIndex = %s',
$table->getTableName(),
$user_phids,
$type->getUserCacheType(),
PhabricatorHash::digestForIndex($key));
return ipull($rows, 'cacheData', 'userPHID');
}
public static function clearCache($key, $user_phid) {
return self::clearCaches($key, array($user_phid));
}
public static function clearCaches($key, array $user_phids) {
if (PhabricatorEnv::isReadOnly()) {
return;
}
if (!$user_phids) {
return;
}
$table = new self();
$conn_w = $table->establishConnection('w');
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
queryfx(
$conn_w,
'DELETE FROM %T WHERE cacheIndex = %s AND userPHID IN (%Ls)',
$table->getTableName(),
PhabricatorHash::digestForIndex($key),
$user_phids);
unset($unguarded);
}
public static function clearCacheForAllUsers($key) {
if (PhabricatorEnv::isReadOnly()) {
return;
}
$table = new self();
$conn_w = $table->establishConnection('w');
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
queryfx(
$conn_w,
'DELETE FROM %T WHERE cacheIndex = %s',
$table->getTableName(),
PhabricatorHash::digestForIndex($key));
unset($unguarded);
}
}

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