Zend form and annotations validation - php

Question

I'm trying using annotatnions to build and validate zend forms.
But currently I recive an error when I open showformAction:
"Fatal error: Uncaught exception 'Zend\Form\Exception\InvalidElementException' with message 'No element by the name of [username] found in form' ..."
So below is my code. What I doing wrong ?
Entity\User.php
namespace Application\Model;
use Zend\Form\Annotation;
/**
* #Annotation\Hydrator("Zend\Stdlib\Hydrator\ObjectProperty")
* #Annotation\Name("user")
*/
class User
{
/**
* #Annotation\Attributes({"type":"text" })
* #Annotation\Validator({"type":"Regex","options":{"regex":"/^[a-zA-Z][a-zA-Z0-9_-]{1,19}/"}})
* #Annotation\Options({"label":"Username:"})
*/
public $username;
}
Controller\ProductsController.php
namespace Application\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\Json\Json;
use Zend\View\Model\JsonModel;
use Zend\View\Model\ViewModel;
use Zend\Debug\Debug;
use Application\Entity\Products;
use Application\Entity\Category;
use Application\Form\ProductsForm;
use Doctrine\ORM\EntityManager;
use Application\Model\User;
use Zend\Form\Annotation\AnnotationBuilder;
class ProductsController extends AbstractActionController {
protected $albumTable;
protected $em;
protected $form;
public function savetodb($data) {
//code save to db ....
}
protected function getForm() {
$entity = new User();
$builder = new AnnotationBuilder();
$this->form = $builder->createForm($entity);
return $this->form;
}
public function showformAction() {
$viewmodel = new ViewModel();
$form = $this->getForm();
$request = $this->getRequest();
//disable layout if request by Ajax
$viewmodel->setTerminal($request->isXmlHttpRequest());
$is_xmlhttprequest = 1;
if (!$request->isXmlHttpRequest()) {
//if NOT using Ajax
$is_xmlhttprequest = 0;
if ($request->isPost()) {
$form->setData($request->getPost());
if ($form->isValid()) {
//save to db <span class="wp-smiley emoji emoji-wink" title=";)">;)</span>
$this->savetodb($form->getData());
}
}
}
$viewmodel->setVariables(array(
'form' => $form,
// is_xmlhttprequest is needed for check this form is in modal dialog or not
// in view
'is_xmlhttprequest' => $is_xmlhttprequest
));
return $viewmodel;
}
public function validatepostajaxAction() {
$form = $this->getForm();
$request = $this->getRequest();
$response = $this->getResponse();
$messages = array();
if ($request->isPost()) {
$form->setData($request->getPost());
if (!$form->isValid()) {
$errors = $form->getMessages();
foreach ($errors as $key => $row) {
if (!empty($row) && $key != 'submit') {
foreach ($row as $keyer => $rower) {
//save error(s) per-element that
//needed by Javascript
$messages[$key][] = $rower;
}
}
}
}
if (!empty($messages)) {
$response->setContent(\Zend\Json\Json::encode($messages));
} else {
//save to db <span class="wp-smiley emoji emoji-wink" title=";)">;)</span>
$this->savetodb($form->getData());
$response->setContent(\Zend\Json\Json::encode(array('success' => 1)));
}
}
return $response;
}
}

Answer 1

Your annotation should be
/**
* #Annotation\Type("Zend\Form\Element\Text")
* #Annotation\Validator({"type":"Regex","options":{"regex":"/^[a-zA-Z][a-zA-Z0-9_-]{1,19}/"}})
* #Annotation\Options({"label":"Username:"})
*/