Can't validate my form in Zend Framework 2 - php

Question

So I create a form and I want to use it in my project. I use Zend Framework 2 and Doctrine Orm. The problem occurs when I submit the form: I had nothing, that means the form wasn't submitted. For more details I will write my code. So if someone has any solution I will be very appreciative.
This is my entity :
class Article implements InputFilterAwareInterface
{
protected $inputFilter;
/**
* #ORM\Column(name="publication", type="boolean")
*/
protected $publication;
public function __construct()
{
$this->date = new \Datetime();
}
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* #var string
*
* #ORM\Column(name="title", type="string", length=255)
*/
protected $title;
// ....
/**
* Populate from an array.
*
* #param array $data
*/
// here maybe the data can't pass from my form to the entity !!
public function populate($data = array())
{
$this->content = $data['content'];
$this->title = $data['title'];
$this->date = $data['date'];
$this->publication = $data['publication'];
$this->image = $data['image'];
}
public function setInputFilter(InputFilterInterface $inputFilter)
{
throw new \Exception("Not used");
}
public function getInputFilter()
{
if (!$this->inputFilter) {
$inputFilter = new InputFilter();
$factory = new InputFactory();
$inputFilter->add($factory->createInput(array(
'name' => 'content',
'required' => true,
'filters' => array(
array('name' => 'StripTags'),
array('name' => 'StringTrim'),
),
'validators' => array(
array(
'name' => 'StringLength',
'options' => array(
'encoding' => 'UTF-8',
'min' => 60,
),
),
),
)));
// ....
}
}
Then my Action:
$form = new ArticleForm();
$form->get('submit')->setAttribute('label', 'Add');
$request = $this->getRequest();
if ($this->zfcUserAuthentication()->hasIdentity()) {
if ($request->isPost())
{
$article = new Article();
$form->setInputFilter($article->getInputFilter());
$form->setData($request->getPost());
if ($form->isValid()) {
$article->populate($form->getData());// here i think i have a problem
$this->getObjectManager()->flush();
$newId = $article->getId();
return $this->redirect()->toRoute('blog');
}
}
}

Answer 1

instead of : $article->populate($form->getData());
try: $article->populate($request->getPost()->toArray());//bad idea
or : $article->populate($form->getData()->toArray());//good idea
up:
$form->getData() will return entity so you must implement toArray() function;
public function toArray()
{
return array(
'title' => $this->title,
//...
);
}