/**
* Merge the translations of two translations.
*
* @param Translations $from
* @param Translations $to
* @param int $options
*/
public static function mergeTranslations(Translations $from, Translations $to, $options = self::DEFAULTS)
{
if ($options & self::REMOVE) {
$filtered = [];
foreach ($to as $entry) {
if ($from->find($entry)) {
$filtered[$entry->getId()] = $entry;
}
}
$to->exchangeArray($filtered);
}
foreach ($from as $entry) {
if ($existing = $to->find($entry)) {
$existing->mergeWith($entry);
} elseif ($options & self::ADD) {
$to[] = $entry;
}
}
}
