Symfony form validation does not work on edit - symfony

Question

I have a form with 3 fields as below : storeClient , type and line that belong to Fashion entity.
I basically have the same problem mentioned here :
Symfony Form Validation not working in Edit
But I was surprised when I edited the form and chose the placeholder as option for Client and I filled the line and type fields , I got that for the client field, it DOES display my validation message "Please choose an option" .which is good .
However for the remaining two fields, if line or type are edited in such a way to choose the placeholder option, the application crashed and gives the argumet exception error.
I did a dump; die; inside the controller (you can see it commented below) . And I got the $fashion object like this when I chose the placeholder for all the fields aka for the client,type and line fields :
Fashion object :
storeClient: null
line: Proxies ...\RefLine
___isinitilized___ :true
and all the info of the line that was set initiallly in this object when I first enterede its edit page.
type: Proxies ...\RefType
___isinitilized___ :true
and all the info of the type that was set initiallly in this object when I first enterede its edit page.
so my question is why the validations work on edit for the client field and does not work for line and type ? I do not think that it is related to the fact that it is a choicettype whereas the other two are entitytype. Moreover, I didn't put a "?" in the setter of client. So i don't see why it works for this field and WHY it gave a Null value when I printed the object and it didn't print the initial client value that was already set in the object when I first landed on the edit page although the two other fields hold the values that were already stored in the object initially.
FashionType.php
->add('storeClient', ChoiceType::class,
[
'label' => 'Store Client',
'choices' => $choicesClient,
'choice_value' => function ($value) {
if ($value instanceof Client) {
return $value->getId();
} else {
return $value;
}
},
'placeholder' => 'Choose ..',
'choice_label' => 'diplayLabel',
'attr' => ['class' => "chosen"],
'required' => true,
]
)
->add('type',
EntityType::class,
[
'label' => 'Clothes Type',
'class' => RefType::class,
'query_builder' => function (EntityRepository $er) {
return $er->createQueryBuilder('refType')
->orderBy('refType.id', 'ASC');
},
'attr' => ['class' => "chosen"],
'placeholder' => 'Choose..',
'required' => true,
'choice_label' => 'label',
])
->add('line',
EntityType::class,
[
'label' => 'cotation.creation_form.ligne_de_cotation',
'class' => RefLine::class,
'choice_value' => function ($value) {
if ($value instanceof RefLine) {
return $value->getId();
} else {
return $value;
}
},
'query_builder' => function (EntityRepository $er) {
return $er->getShoppingLines();
},
'attr' => ['class' => "chosen"],
'placeholder' => 'Choose..',
'required' => true,
'choice_label' => 'getLabel',
])
IN my controller, this function is called upon submitting the form :
public function validerAction(Request $request, $idFashion)
{
$em = $this->getDoctrine()->getManager();
/** #var Fashion $fashion */
$fashion = ($idFashion === null) ? new Fashion() : $em->getRepository(
'App:Fashion'
)->find($idFashion);
$form = $this->createForm(FashionType::class, $fashion);
// try {
$form->handleRequest($request);
//} catch(\InvalidArgumentException) {
//dump($fashion);die;
// }
if ($form->isSubmitted() && $form->isValid()) {..}
Here are my setters:
/**
* Set line
*
* #param Refline $line
*
* #return Fashion
*/
public function setLine(RefLine $line)
{
$this->line = $line;
return $this;
}
/**
* Set type
*
* #param RefType $type
*
* #return Fashion
*/
public function setType(RefType $type)
{
$this->type = $type;
return $this;
}
/**
* Set storeClient
*
* #param Client $storeClient
* #return Fashion
*/
public function setStoreClient($storeClient)
{
$this->storeClient = $storeClient;
return $this;
}
THe three fields were declared like this :
/**
* #ORM\ManyToOne(targetEntity="App\Entity\RefLine")
* #ORM\JoinColumn(name="line_id", referencedColumnName="id", nullable=false)
*/
private $line;

Answer 1

In EntityType::class field type is by default nullable. If you want to add validation on that then you have to write this
/**
*
* #Assert\NotBlank(message="Please enter Line", groups="groupName")
*/
private $line;
For more details you can read https://symfony.com/doc/current/validation.html
if you are using group name then you should declare in Form
$resolver->setDefaults([
// ...
'validation_groups' => ['Default', 'groupName'],
]);