我对 Symfony2 框架相当陌生，并且无法在 twig 中显示错误。约束是使用设置的$form->createFormBuilder()->add()
当我运行时{{ form_errors(form) }}没有任何显示并且我不确定我做错了什么。
public function massEmailAction(Request $request)
{
$data['errors'] = '';
$form = array('message'=>'test', 'single_email_val'=>'', 'send_to'=>'');
$form = $this->createFormBuilder($form)
->add('message', 'textarea', array('attr'=>array('style'=>"width: 800px; height: 500px;")))
->add('single_email_val', 'text', array('label'=>'Single Email', 'required'=>false,
'constraints'=>array(
new NotBlank(),
new Length(array('min' => 3)),
),
'invalid_message'=>'email not valid',
'error_bubbling'=>true,
))
->add('send_to', 'choice', array('choices'=>array(''=>'Select',
'single_email'=>'Send to Single Email',
'mass_email'=>'Send to All'
),
'required'=>false,
))
->getForm();
$data['form'] = $form->createView();
if($request->isMethod('POST'))
{
$emailConstraint = new NotBlank();
$formData = $form->bind($this->getRequest());
// Get form data
$post = $formData->getData();
echo $post['single_email_val'];
if(!$form->isValid())
{
echo 'not valid';
//print_r($this->getErrorMessages($form));
print_r($this->getErrorMessages($form));
$data['errors'] = $this->getErrorMessages($form);
// print_r($form->getErrors());
//echo $form->getErrorsAsString();
}
else
{
}
}
return $this->render('TmarketMarketingBundle:Default:massEmail.html.twig', $data);
}