Symfony2 - get form errors as a flat array

FormErrors.php

<?php

namespace Interprac\Bundle\UtilityBundle\Form;

use Symfony\Component\Form\Form;

class FormErrors
{
    public function getArray(Form $form, $style = 'KO')
    {
        $method = sprintf('get%sErrors', $style);
        
        $messages = $this->$method($form->all());
        
        return $messages;
    }
    
    private function getKOErrors(Form $children)
    {
        $errors = array();
        
        /* @var $child \Symfony\Component\Form\Form */
        foreach ($children as $child) {
            $type = $child->getConfig()->getType()->getName();
            if ($child->count()  && ($type !== 'choice')) {
                $childErrors = $this->getKOErrors($child->all());
                if (sizeof($childErrors)) {
                    $errors = array_merge($errors, $childErrors);
                }
            } else {
                if (!$child->isValid()) {
                    // I need only one error message per field 
                    $errors[$child->getName()] = $child->getErrors()->current()->getMessage();
                }
            }
        }
        
        return $errors;
    }
}

• warning: it won't work if you are extending a choice type