ZF2 transalation is not working in form class

Question

I am using zendframework 2 and My translations are not working here in form class where the form is formed and there is validation, elsewhere in whole applications they are working properly.

I have pasted all the code in my file with namespaces.

<?php  
    namespace Services\Form;
    use Zend\Form\Form;
    use Zend\Form\Element;
    use Zend\InputFilter\Input;
    use Zend\InputFilter\InputFilter;
    use Zend\ServiceManager\ServiceLocatorAwareInterface;
    use Zend\ServiceManager\ServiceLocatorInterface;

    class ProfilePicForm extends Form implements ServiceLocatorAwareInterface
    {
        protected $serviceLocator;

        public function setServiceLocator(ServiceLocatorInterface $sl)
        {
            $this->serviceLocator = $sl;
        }

        public function getServiceLocator()
        {
            return $this->serviceLocator;
        }

        public function init()
        {
            $routeMatch = $this->getServiceLocator()->getServiceLocator()->get('Application')->getMvcEvent()->getRouteMatch();
            $translator = $this->getServiceLocator()->getServiceLocator()->get('viewHelperManager')->get('translate')->getTranslator();
            $action = $routeMatch->getParam('action');

            // Form
            parent::__construct('profile_pic_form');
            $this->setAttribute('method', 'post');
            $this->setAttribute('enctype','multipart/form-data');

            $profile_pic_form_csrf = new Element\Csrf('profile_pic_form_csrf');
            $profile_pic_form_csrf->setCsrfValidatorOptions(array('timeout'=>'3600'));
            $this->add($profile_pic_form_csrf);

            $profile_pic = new Element\File('profile_pic');
            $this->add($profile_pic);

            // Validation
            $inputFilter = new InputFilter();

            $profile_pic = new Input('profile_pic');
            $profile_pic->getFilterChain()
                        ->attach(new \Lib\MyLib\Filter\RenameUpload(array(
                            'target'    => SERVICE_PROFILE_PIC_UPLOAD_PATH.'/profile-pic.*',
                            'use_upload_extension' => true,
                            'randomize' => true
            )));
            $required = true;
            $profile_pic->setRequired($required);
            $validator = new \Zend\Validator\File\UploadFile();
            $validator->setOptions(array(
                            'messageTemplates' => array(
                               \Zend\Validator\File\UploadFile::FILE_NOT_FOUND => 'Please select picture.'
            )));
            $profile_pic->getValidatorChain()->attach($validator,true);
            $validator = new \Zend\Validator\File\Size(array('max' => 250*1024));
            $validator->setMessage(**$translator->translate('MyAccountPictureErrorMessage1')**);
            $profile_pic->getValidatorChain()->attach($validator,true);
            $validator = new \Zend\Validator\File\Extension('png,jpg');
            $validator->setMessage(**$translator->translate('MyAccountPictureErrorMessage2')**);
            $profile_pic->getValidatorChain()->attach($validator,true);
            $inputFilter->add($profile_pic);

            $this->setInputFilter($inputFilter); 
        }

this is my controller function. public function profileAction() { $this->layout('ajax-layout');

    $var = new \stdClass();
    $viewmodel = new ViewModel();
    $this->authPlugin()->checkLogin();
    $this->servicePlugin()->checkSid();
    $this->layout()->setVariable('allowedFeatures', $this->featurePlugin()->getAllowedFeatures());

    $this->languagePlugin()->translate();

    $var->userInfo = $this->authPlugin()->getUserInfo();

    if($this->params()->fromRoute('sid') !== null){
    $var->sid = $this->params()->fromRoute('sid');

    }
    elseif ($this->params()->fromRoute('id') !== null) {
        $var->sid = $this->params()->fromRoute('id');
    }

    // ----------------------- i m here --------------------------
    // $var->sid = $this->params()->fromRoute('sid');

    $var->profilePicForm = $this->getServiceLocator()->get('FormElementManager')->get('\Services\Form\ProfilePicForm');
    $var->serviceNameForm = $this->getServiceLocator()->get('FormElementManager')->get('\Services\Form\ServiceNameForm');

    $var->service = $this->getServices()->fetchServiceById($var->sid);
    // Fetch payment history
    $var->paymentHistory = $this->getServiceLocator()->get('Services\Model\PaymentTransactionService')->fetchPaymentTransactionsByServiceId($var->sid);
    $var->timezones = $this->getTimeZoneTable()->listAll();

    $viewmodel->setVariables(array('var' => $var));
    return $viewmodel;
}

Answer 1

This is happening because of your validator.
I already talked about this problem, when you call new validators without the service locator : https://stackoverflow.com/a/36500438/3333246

To fix that you need to set the translator in your options because:

class Size extends AbstractValidator

abstract class AbstractValidator implements
    Translator\TranslatorAwareInterface,
    ValidatorInterface

And TranslatorAwareInterface is not initialized if you instanciate a new Validator without ServiceLocator.

So your validators need options declared like this in your code:

$validator = new \Zend\Validator\File\Size(array('translator' => $translator, 'max' => 250*1024));
            $validator->setMessage('MyAccountPictureErrorMessage1');

No need to translate the message now, the validator will translate it for you.

For my comment, about your code, nevermind it's not related to your problem. It's just personal in fact.

EDIT:

You don't need this translator :

$translator = $this->getServiceLocator()->getServiceLocator()->get('viewHelperManager')->get('translate')->getTranslator();

But this one

$translator = $this->getServiceLocator()->get('translator');

Answer 2

I have found another way to do this job, i have made an ajax call and on its response i show the divs having the translations.