/**
* Set a metadata value for the given group and metadata key. Updates the
* value if already existing.
* @param $group string The group id
* @param $key string Metadata key
* @param $value string Metadata value
*/
public static function set($group, $key, $value)
{
$dbw = wfGetDB(DB_MASTER);
$data = array('tmd_group' => $group, 'tmd_key' => $key, 'tmd_value' => $value);
if ($value === false) {
unset($data['tmd_value']);
$dbw->delete('translate_metadata', $data);
} else {
$dbw->replace('translate_metadata', array(array('tmd_group', 'tmd_key')), $data, __METHOD__);
}
self::$cache = null;
}
