Challenge 1 / 1

How could we set the readonly HTML attribute to true for the slug text field on all pages except for the "new" page?

yield Field::new('slug')
    ->setCustomOptions([
        'attr' => [
            'readonly' => $pageName !== 'new',
        ],
    ]);

yield Field::new('slug')
    ->setFormTypeOption('attr', [
        'readonly' => $pageName !== 'new',
    ]);

Both D and B are valid

yield TextField::new('slug')
    ->setFormTypeOptions([
        'attr' => [
            'readonly' => $pageName !== 'new',
        ],
    ]);