DoctrineExtensions translatable in ZF2 - how and where can I setDefaultLocale - php

Question

I stuck with the $defaultLocale of the TranslatableListener.
https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#default-locale
I found only setup possibilities for Symphony, but not for Zend Framework 2.
There is an extension bundle for doctrine for easy setup of DoctrineExtensions named "StofDoctrineExtensionsBundle", but I didn't found something like that for ZF2.
The following link shows a best practices for setting up translatable and other DoctrineExtensions, but where should I put it and isn't there an easier approach?
https://github.com/l3pp4rd/DoctrineExtensions/blob/master/doc/annotations.md#best-practices-for-setting-up-with-annotations
I only want to know how I can configure the $defaultLocale of the TranslatableListener in a ZF2 environment.
UPDATE:
I tried in my bootstrap the following:
$translatableListener = new TranslatableListener();
$translatableListener->setDefaultLocale('de-DE');
$doctrineEventManager->addEventSubscriber($translatableListener);
But still getting:
.../vendor/gedmo/doctrine-extensions/lib/Gedmo/Translatable/TranslatableListener.php:464 Gedmo\Translatable\Mapping\Event\Adapter\ORM->loadTranslations
$object Rental\Entity\Rental
$translationClass "Rental\Entity\RentalTranslation"
$locale "en_US"
$objectClass "Rental\Entity\Rental"

Answer 1

So my mistake was, that I configured the TranslatableListener twice.
In my doctrine configuration (only for explanation there is a comment before, delete the whole line):
'doctrine' => [
'eventmanager' => [
'orm_default' => [
'subscribers' => [
'Gedmo\Timestampable\TimestampableListener',
'Gedmo\Sluggable\SluggableListener',
// 'Gedmo\Translatable\TranslatableListener',
],
],
],
and in bootstrap:
// sets the default locale and the actual locale
$translatableListener = new TranslatableListener();
$translatableListener->setDefaultLocale('de-DE');
$translatableListener->setTranslatableLocale(\Locale::getDefault());
$doctrineEventManager->addEventSubscriber($translatableListener);
If you want to set the DefaultLocale and the TranslatableLocale in Zend Framework 2 for the Translatable Doctrine Extension, than do it in bootstrap and don't add it a second time in the doctrine configuration.

Answer 2

If you want to keep:
'doctrine' => [
'eventmanager' => [
'orm_default' => [
'subscribers' => [
'Gedmo\Timestampable\TimestampableListener',
'Gedmo\Sluggable\SluggableListener',
// the line below because in future you might need it
'Gedmo\Translatable\TranslatableListener',
],
],
],
Try this:
https://stackoverflow.com/a/42859119/3661592