WC_Cache_Helper::get_transient_version()
Get transient version.
When using transients with unpredictable names, e.g. those containing an md5 hash in the name, we need a way to invalidate them all at once.
When using default WP transients we're able to do this with a DB query to delete transients manually.
With external cache however, this isn't possible. Instead, this function is used to append a unique string (based on time()) to each transient. When transients are invalidated, the transient version will increment and data will be regenerated.
Raised in issue https://github.com/woocommerce/woocommerce/issues/5777. Adapted from ideas in http://tollmanz.com/invalidation-schemes/.
Метод класса: WC_Cache_Helper{}
Хуков нет.
Возвращает
Строку
. transient version based on time(), 10 digits.
Использование
$result = WC_Cache_Helper::get_transient_version( $group, $refresh );
- $group(строка) (обязательный)
- Name for the group of transients we need to invalidate.
- $refresh(true|false)
- true to force a new version.
По умолчанию: false
Код WC_Cache_Helper::get_transient_version() WC Cache Helper::get transient version WC 8.7.0
public static function get_transient_version( $group, $refresh = false ) { $transient_name = $group . '-transient-version'; $transient_value = get_transient( $transient_name ); if ( false === $transient_value || true === $refresh ) { $transient_value = (string) time(); set_transient( $transient_name, $transient_value ); } return $transient_value; }