The buildView() Method

Not sure why but adding the `javascripts` block to the edit or new template make the debug bar disappear into thin air

Console shows the following error:

```js
Uncaught ReferenceError: Sfjs is not defined
at new:89:44359
at new:89:44392
```

On the Edit page I am getting this error: Can only be used with user objects.

\Form\DataTransformer\FormToUserTransformer.php (line 32)
`if (!$value instanceof User) {

        throw new \LogicException('Can only be used with user objects.');        

}`

Hi,

when i try to insert any parameter (for exemple i need RouterInterface $router) in the Article Constructor (my Article is Gruppi), i get the message

Too few arguments to function App\Form\Form\Gruppi\GruppiType::__construct(), 0 passed in C:\Users\Giacomo\Documents\GitHub\fgcweb\vendor\symfony\form\FormRegistry.php on line 91 and exactly 2 expected

I think this come from the controller's line:
$form = $this->createForm(GruppiType::class, $gr);

Now, there is a way to use RouterInterface from inside Gruppi without get that error, so i can set:

'data-autocomplete-url' => $this->router->generate('get_group_fields');

without the need to create a new form and use it in Gruppi's buildForm?

If i instance
$this->router = RouterInterface::class; i
inside the constructor, the error is solved but i get:

Call to a member function generate() on string
in
$attr['data-autocomplete-url'] = $this->router->generate('get_group_fields')

Reading docs i did:

`

   $route = new Route('/gr/utility/gruppi', ['_controller' => GruppiController::class]);
    $routes = new RouteCollection();
    $routes->add('get_group_fields', $route);
    $context = new RequestContext('/');
    $generator = new UrlGenerator($routes, $context);
    $url = $generator->generate('get_group_fields');

`

but it's very verbose and the output is:
data-autocomplete-url="//gr/utility/gruppi"

Any suggestion for a shorted and correct solution?

Thanks a lot!

Hello there ,
This error occurs when saving the form.

Error: <blockquote>The choices "single" do not exist in the choice list.</blockquote>

I don't understand why I can't define the choices in the buildView method
Where can I do it? So that on the parent form I don't have to do it. Choices will be generated based on an option in the parent form called "entity_name"

namespace App\Form\Type;
use App\Service\Theme;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\OptionsResolver;
class TemplateType extends AbstractType
{
  private $theme;
  public function __construct(Theme $theme)
  {
    $this->theme = $theme;
  }
  public function configureOptions(OptionsResolver $resolver): void
  {
    $resolver->setDefaults([
      'expanded'         => true,
      'multiple'         => false,
      'required'         => true,
      'label'            => false,
      'entity_name'      => '',
      'default_template' => ''
    ]);
  }
  public function buildView(FormView $view, FormInterface $form, array $options): void
  {
    $entityName = $options[ 'entity_name' ];
    $view->vars = array_replace($view->vars, [
      'entity_name'      => $entityName,
      'default_template' => $options[ 'default_template' ],
      'choices'          => $this->theme->templatesByEntity($entityName),
    ]);
  }
  public function getParent(): string
  {
    return ChoiceType::class;
  }
}

BTW, when I am trying to put in twig this
`

{{ form_row(articleForm.author, {
    attr: {class: 'the-author'}
}) }}

`
I am getting broken autocomplete. I mean it won't work. Still I have correctly appended the needed class...