Symfony2 - How to validate an email address in a controller
I wrote a post about validating email address(es) (one or many) outside of forms
http://konradpodgorski.com/blog/2013/10/29/how-to-validate-emails-outside-of-form-with-symfony-validator-component/
It also covers a common bug where you validate against Email Constraint and forget about NotBlank
/**
* Validates a single email address (or an array of email addresses)
*
* @param array|string $emails
*
* @return array
*/
public function validateEmails($emails){
$errors = array();
$emails = is_array($emails) ? $emails : array($emails);
$validator = $this->container->get('validator');
$constraints = array(
new \Symfony\Component\Validator\Constraints\Email(),
new \Symfony\Component\Validator\Constraints\NotBlank()
);
foreach ($emails as $email) {
$error = $validator->validateValue($email, $constraints);
if (count($error) > 0) {
$errors[] = $error;
}
}
return $errors;
}
I hope this helps
By using validateValue method of the Validator service
use Symfony\Component\Validator\Constraints\Email as EmailConstraint;
// ...
public function customAction()
{
$email = 'value_to_validate';
// ...
$emailConstraint = new EmailConstraint();
$emailConstraint->message = 'Your customized error message';
$errors = $this->get('validator')->validateValue(
$email,
$emailConstraint
);
// $errors is then empty if your email address is valid
// it contains validation error message in case your email address is not valid
// ...
}
// ...