Description

Since v2.8.46, relative dates are not supported anymore by DateTimeType.

I am guessing this is because of the patches :

• bug [Form] fail reverse transforming invalid RFC 3339 dates #28466 [Form] fail reverse transforming invalid RFC 3339 dates
• bug [Form] Fix DateTimeType html5 input format #28372 [Form] Fix DateTimeType html5 input format

It would be great to introduce the feature again by adding a dedicated value of the format option, or anything better you can think of.

Example

At @lrqdo, the relative dates are helping us simplify our Behat scenarios.

Here is an example of a Behat scenario failing on v2.8.46:

When I send a POST request to "/endpoint" with values:
  | distributionDate | +14 days |
Then the response code should be 200
  Failed asserting that 400 is identical to 200.

Here is the form type we wrote:

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add(
        'distributionDate',
        DateTimeType::class,
        array(
            'widget' => 'single_text',
        )
    );
}

And here is the detailed error we get: