Symfony Validation Constraint Assert\Date() is accepting empty string

Question

In an Entity class I defined a property like

use Symfony\Component\Validator\Constraints as Assert;

class MyEntity
{
    ...

    /**
     * @Assert\Date()
     */
    protected $date_of_birth;

    ...
}

In the FormType class I use the property:

$builder
    ->add('date_of_birth',
        DateType::class,
        array(
            'label' => 'Birthday',
            'required' => true,
            'translation_domain' => 'messages',
            'widget' => 'single_text',
            'html5' => false,
            'data' => null,
            'format' => $this->container->getParameter('date.format.icu'),
            'attr' => array( 'class' => 'js-bootstrap-datepicker', 'placeholder' => 'DD.MM.YYYY' ),
        )
    )
;

In the template I output the form suppressing browser side validation:

...
{{ form_start(form_a, {'attr': {'novalidate': 'novalidate'}}) }}
...
{{ form_label(form_a.date_of_birth) }}*
{{ form_errors(form_a.date_of_birth) }}
{{ form_widget(form_a.date_of_birth) }}
...

Unfortunately it doesn't really matter what I type into the date field. I can leave it empty - it still is OK for the validator. The NotBlank Constraint works though. I suppose I am missing something specific in the Date Constraint usage?

You can have more than one constraint per field - add a new line to the annotation - `* @Assert\NotBlank()` — Alister Bulman, Mar 02 '18 at 21:45
@AlisterBulman Thanks. This helps. Janney Botis answered it a bit more complete below. — user3440145, Mar 02 '18 at 22:14

score 1 · Accepted Answer · answered Mar 02 '18 at 21:49

1

This is the expected behaviour. You are not missing anything, there is no option in the definition of the Date constraint to invalidate for empty value in the field.

To invalidate for empty value in the field, you should add the NotBlank Constraint, as you correctly state.

Here is the line: code for DateValidator

For example this is the same for most other validators, eg. LengthValidator will validate for empty string, even if min is >0.

References:

answered Mar 02 '18 at 21:49

Jannes Botis

11,154
3
21
39

Thank you. Got it :-) Small question aside: Is there a way to define a translation_domain for the message which I can define for an Assert? – user3440145 Mar 02 '18 at 22:12
Good question, unfortunately I do not know how. – Jannes Botis Mar 02 '18 at 22:15

Symfony Validation Constraint Assert\Date() is accepting empty string

1 Answers1