在isValid之后的zf2表单绑定

Question

I just moved from zf1 to zf2 and some simple task are giving me a headache. I have some filters on my form. Filters are being run on form isValid function andafter this function been run, I expected filtered data to be rebind to the form.

I an using zend framework 2.2.7

This is my controller code:

<?php

namespace Test\Controller;

use Test\Entity\Product;
use Test\Form\CreateProduct;
use Zend\Mvc\Controller\AbstractActionController;

class TestController extends AbstractActionController
{

    public function indexAction()
    {
      $form = new CreateProduct();
         $product = new Product();
         $form->bind($product);

         $request = $this->getRequest();
         if ($request->isPost()) {
             $form->setData($request->getPost());

             if ($form->isValid()) {
                 var_dump($product);
             }
             $form->bind($product); // manual rebind seems to work but look hackish 

         }

         return array(
             'form' => $form,
         );
    }
}

Answer 1

if you like to "rebind" the data back to the form (after the validation fail) use $form->populateValues()

$request = $this->getRequest();
if( $request->isPost() )
{
    if( $form->isValid() )
    {
        $validatedFormData = $form->getData();
        // do something

    } else {

        // populate posted values to form
        $form->populateValues($request->getPost());

        // fetch form errors $form->getMessages()
        // whatever
    }
}