[EA3][Need Help] Nested crud forms

[furang]

Hello friends.
I have two entities Order and Product (One-to-Many relation).
How should I adjust Field for this relation so I can add new Products while creating Order
Something like this

I managed to create this form using CollectionField

CollectionField::new('products')->setEntryType(ProductsEntryType::class);

with CrudFormType

// ProductsEntryType
public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $entity = $this->entityFactory->create(ProductCrudController::getEntityFqcn());
        $this->entityFactory->processFields($entity, FieldCollection::new([TextField::new('description'), TextField::new('price')]));

        $builder->add(
            'products',
            CrudFormType::class,
            [
                'entityDto' => $entity,
            ]
        );
    }

But I need to pass fields from ProductCrudController with permissions.
Can someone please help me to render product(s) form(s) inside order form with storing all data?
Thanks.

[pkly]

If you have proper ManyToOne/OneToMany annotations symfony will deal with this automatically, all you need is a CollectionField with the proper entry type.

[furang]

My annotations are Ok (at least Symfony Profiler says so). And what do you mean "proper entry type"? What is it for my Product entity? Is it Symfony\Bridge\Doctrine\Form\Type\EntityType ? When I pass it as entry_type new error occurs
An error has occurred resolving the options of the form "Symfony\Bridge\Doctrine\Form\Type\EntityType": The required option "class" is missing.
I tried

CollectionField::new('products')->setEntryType(EntityType::class)->setFormTypeOption('class', Product::class)

and

CollectionField::new('products')->setEntryType(EntityType::class)->setFormTypeOption('value_type_options.class', Product::class)

but It doesn't work too(

[furang]

CollectionField::new('products')->setEntryType(EntityType::class)->setFormTypeOption('entry_options.class', Product::class)

This finally worked, but not the way I need. It allows only manipulate raltions.

And I need all data.

[pkly]

oh yeah, but this is all symfony form options, nothing custom.
granted, this setup you have is kinda bad for bigger applications, if you have a lot of products, since it'll cause the whole thing to lag horribly whenever you have this form up.
you'd need to look into entity lookups and so on, but that's beyond the scope of the bundle

[furang]

The main idea is that i don't need to reuse entities.
This approach has some pros and cons, but in my case it's biz req. E.g. I'll have to create many entities, but I don't have to load all them on the page.
So any recommendations how I can do this? I'm not sure I've got you last phrase. Can you please explain it?

[furang]

Guess I've solved my problem
Solution looks like this

$entity = $this->get(EntityFactory::class)->create(ProductCrudController::getEntityFqcn());
$controller  = $this->get(ControllerFactory::class)->getCrudControllerInstance(
    ProductCrudController::class,
    $pageName,
    $request
);
$productFields = $controller->configureFields($pageName);
$this->get(EntityFactory::class)->processFields($entity, FieldCollection::new($productFields));
$field = CollectionField::new('products')->setEntryType(CrudFormType::class)->setFormTypeOption('entry_options.entityDto', $entity);

Looks a bit creepy (the form looks even more creepy), but it works.
I leave it here. Mb it will help someone in future.

[tooltonix]

@furang Looking for a solution to nest forms, I came across this post which helped me out, however the form really looks a bit creepy. Have you been able to solve the problem in the meantime or have you solved it differently?

[michaelKaefer]

@furang Really cool! I changed your example a little. @tooltonix For one way to reset the styles see my comment in my example - you still will need some own CSS, it still doesn't look perfect.

namespace App\Controller\Admin;

use App\Entity\Order;
use App\Entity\Product;
use EasyCorp\Bundle\EasyAdminBundle\Collection\FieldCollection;
use EasyCorp\Bundle\EasyAdminBundle\Controller\AbstractCrudController;
use EasyCorp\Bundle\EasyAdminBundle\Factory\ControllerFactory;
use EasyCorp\Bundle\EasyAdminBundle\Factory\EntityFactory;
use EasyCorp\Bundle\EasyAdminBundle\Field\CollectionField;
use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
use EasyCorp\Bundle\EasyAdminBundle\Form\Type\CrudFormType;
use Symfony\Component\HttpFoundation\RequestStack;

class OrderCrudController extends AbstractCrudController
{
    private RequestStack $requestStack;
    private EntityFactory $entityFactory;
    private ControllerFactory $controllerFactory;

    public function __construct(RequestStack $requestStack, EntityFactory $entityFactory, ControllerFactory $controllerFactory)
    {
        $this->requestStack = $requestStack;
        $this->entityFactory = $entityFactory;
        $this->controllerFactory = $controllerFactory;
    }

    public static function getEntityFqcn(): string
    {
        return Order::class;
    }

    public function configureFields(string $pageName): iterable
    {
        $entityDto = $this->entityFactory->create(Product::class);

        $crudController = $this->controllerFactory->getCrudControllerInstance(
            ProductCrudController::class,
            'edit', // This is not 100% correct, because for the "Add new" button we want a prototype form for a 'new' product
            $this->requestStack->getMainRequest()
        );

        $productFields = $crudController->configureFields($pageName);

        $this->entityFactory->processFields($entityDto, FieldCollection::new($productFields));

        return [
            IdField::new('id')
                ->setDisabled(),
            TextField::new('status'),
            CollectionField::new('products')
                ->setCssClass('my-class-name') // This resets the accordion styles because it overrides the CSS class "field-collection"
                ->setEntryType(CrudFormType::class)
                ->setFormTypeOption('entry_options.entityDto', $entityDto),
        ];
    }
}

[michaelKaefer]

I did a PR here: symfony/symfony#45605

If it gets merged, we can do it like this:

namespace App\Controller\Admin;

use App\Entity\Order;
use App\Entity\Product;
use EasyCorp\Bundle\EasyAdminBundle\Collection\FieldCollection;
use EasyCorp\Bundle\EasyAdminBundle\Controller\AbstractCrudController;
use EasyCorp\Bundle\EasyAdminBundle\Dto\EntityDto;
use EasyCorp\Bundle\EasyAdminBundle\Factory\ControllerFactory;
use EasyCorp\Bundle\EasyAdminBundle\Factory\EntityFactory;
use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
use EasyCorp\Bundle\EasyAdminBundle\Form\Type\CollectionType;
use EasyCorp\Bundle\EasyAdminBundle\Form\Type\CrudFormType;
use Symfony\Component\HttpFoundation\RequestStack;

class OrderCrudController extends AbstractCrudController
{
    private RequestStack $requestStack;
    private EntityFactory $entityFactory;
    private ControllerFactory $controllerFactory;

    public function __construct(RequestStack $requestStack, EntityFactory $entityFactory, ControllerFactory $controllerFactory)
    {
        $this->requestStack = $requestStack;
        $this->entityFactory = $entityFactory;
        $this->controllerFactory = $controllerFactory;
    }

    public static function getEntityFqcn(): string
    {
        return Order::class;
    }

    public function configureFields(string $pageName): iterable
    {
        return [
            IdField::new('id')
                ->setDisabled(),
            TextField::new('status'),
            CollectionField::new('products')
                ->setEntryType(CrudFormType::class)
                ->setCssClass('field-crud-collection')
                ->setFormTypeOption('entry_options.entityDto', $this->createEntityDto('edit', 'edit'))
                ->setFormTypeOption('prototype_options.entityDto', $this->createEntityDto('new', 'new'))
            ,
        ];
    }

    private function createEntityDto(string $crudAction, string $pageName): EntityDto
    {
        $entityDto = $this->entityFactory->create(Product::class);

        $crudController = $this->controllerFactory->getCrudControllerInstance(
            ProductCrudController::class,
            $crudAction,
            $this->requestStack->getMainRequest()
        );

        $fields = $crudController->configureFields($pageName);

        $this->entityFactory->processFields($entityDto, FieldCollection::new($fields));

        return $entityDto;
    }
}

It allows us showing different forms when editing an existing collection entry and when adding a new collection entry.

@javiereguiluz I really would love to add this to the core in a nice way.. We would no longer be forced to duplicate our forms: 1. configure the fields in the ProductCrudController and 2. creating a custom form type where we hav to create the exact same fields again (I guess this happens to a lot of people and I read it in different issues..). Do you think this would be OK?

[michaelKaefer]

The PR mentioned in my last comment got merged into Symfony 6.1, so it should work soon.