If you don't need the servicemanager instance in your model, simply inject translator instance to it.
For example:
// Your model's constructor
class MyModel {
// Use the trait if your php version >= 5.4.0
use \Zend\I18n\Translator\TranslatorAwareTrait;
public function __construct( $translator )
{
$this->setTranslator( $translator );
}
public function modelMethodWhichNeedsToUseTranslator()
{
// ...
$text = $this->getTranslator()->translate('lorem ipsum');
// ...
}
}
When you creating your model first time on service or controller level
class someClass implements ServiceLocatorAwareInterface {
public function theMethodWhichCreatesYourModelInstance()
{
// ...
$sm = $this->getServiceLocator();
$model = new \Namespace\MyModel( $sm->get('translator') )
// ...
}
}
If you need to instantiate your model (new MyModel();) on multiple methods/classes, consider to writing a factory for it.
Here is a nice article about Dependency Injection and PHP by Ralph Schindler for more detailed comments about this approach.