$fields['photo'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_SMALL, $timestamp);
$fields['thumb'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_THUMB, $timestamp);
$fields['micro'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_MICRO, $timestamp);
$fields['photo'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_SMALL, $timestamp);
$fields['thumb'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_THUMB, $timestamp);
$fields['micro'] = self::storeAvatarCache($image, $filename, Proxy::PIXEL_MICRO, $timestamp);