Cach hiển thị lỗi validation chi tiết đến từng thành phần của form

Ta có SignUpForm

use Phalcon\Forms\Form;
	use Phalcon\Forms\Element\Text;
	use Phalcon\Forms\Element\Hidden;
	use Phalcon\Forms\Element\Password;
	use Phalcon\Forms\Element\Submit;
	use Phalcon\Forms\Element\Check;
	use Phalcon\Validation\Validator\PresenceOf;
	use Phalcon\Validation\Validator\Email;
	use Phalcon\Validation\Validator\Identical;
	use Phalcon\Validation\Validator\StringLength;
	use Phalcon\Validation\Validator\Confirmation;
	class SignUpForm extends Form
	{
	public function initialize($entity = null, $options = null)
	{
	$name = new Text('name');
	$name->setLabel('Name');
	$name->addValidators([
	new PresenceOf([
	'message' => 'The name is required'
	])
	]);
	$this->add($name);
	// Email
	$email = new Text('email');
	$email->setLabel('E-Mail');
	$email->addValidators([
	new PresenceOf([
	'message' => 'The e-mail is required'
	]),
	new Email([
	'message' => 'The e-mail is not valid'
	])
	]);
	$this->add($email);
	// Password
	$password = new Password('password');
	$password->setLabel('Password');
	$password->addValidators([
	new PresenceOf([
	'message' => 'The password is required'
	]),
	new StringLength([
	'min' => 8,
	'messageMinimum' => 'Password is too short. Minimum 8 characters'
	]),
	new Confirmation([
	'message' => 'Password doesn\'t match confirmation',
	'with' => 'confirmPassword'
	])
	]);
	$this->add($password);
	// Confirm Password
	$confirmPassword = new Password('confirmPassword');
	$confirmPassword->setLabel('Confirm Password');
	$confirmPassword->addValidators([
	new PresenceOf([
	'message' => 'The confirmation password is required'
	])
	]);
	$this->add($confirmPassword);
	// Remember
	$terms = new Check('terms', [
	'value' => 'yes'
	]);
	$terms->setLabel('Accept terms and conditions');
	$terms->addValidator(new Identical([
	'value' => 'yes',
	'message' => 'Terms and conditions must be accepted'
	]));
	$this->add($terms);
	// CSRF
	$csrf = new Hidden('csrf');
	$csrf->addValidator(new Identical([
	'value' => $this->security->getSessionToken(),
	'message' => 'CSRF validation failed'
	]));
	$csrf->clear();
	$this->add($csrf);
	// Sign Up
	$this->add(new Submit('Sign Up', [
	'class' => 'btn btn-success'
	]));
	}
	/**
	* Prints messages for a specific element
	*/
	public function messages($name)
	{
	if ($this->hasMessagesFor($name)) {
	foreach ($this->getMessagesFor($name) as $message) {
	$this->flash->error($message);
	}
	}
	}
	}

Note: chú ý function messages 

Trong code volt template signup.volt

<div align="center">
	{{ form('class': 'form-search') }}
	<div align="left">
	<h2>Sign Up</h2>
	</div>
	<table class="signup">
	<tr>
	<td align="right">{{ form.label('name') }}</td>
	<td>
	{{ form.render('name') }}
	{{ form.messages('name') }}
	</td>
	</tr>
	<tr>
	<td align="right">{{ form.label('email') }}</td>
	<td>
	{{ form.render('email') }}
	{{ form.messages('email') }}
	</td>
	</tr>
	<tr>
	<td align="right">{{ form.label('password') }}</td>
	<td>
	{{ form.render('password') }}
	{{ form.messages('password') }}
	</td>
	</tr>
	<tr>
	<td align="right">{{ form.label('confirmPassword') }}</td>
	<td>
	{{ form.render('confirmPassword') }}
	{{ form.messages('confirmPassword') }}
	</td>
	</tr>
	<tr>
	<td align="right"></td>
	<td>
	{{ form.render('terms') }} {{ form.label('terms') }}
	{{ form.messages('terms') }}
	</td>
	</tr>
	<tr>
	<td align="right"></td>
	<td>{{ form.render('Sign Up') }}</td>
	</tr>
	</table>
	{{ form.render('csrf', ['value': security.getToken()]) }}
	{{ form.messages('csrf') }}
	<hr>
	</form>
	</div>