How to prefill field of type EntityType from PHP - symfony

In my form, I have a field of type EntityClass:
$builder
->add(
'user',
EntityType::class,
[
'required' => false,
'label' => 'User',
'placeholder' => 'Please choose',
'choice_label' => 'email',
'choice_value' => 'id',
'class' => 'AppBundle:User',
]
)
;
This field works fine - until I try to pre-fill it from my PHP code. Then it stays empty, and only shows "Please choose".
Pre-filling looks like this:
$user = $this->userRepository->find(...);
$form->get('user')->setData($user);
But it also does not work if I call ->setData($user->getId()), or even ->setData($user->getEmail()).
So how do I prefill a field of type EntityType?

You should not prefill Form, you should prefill Model, if you need it.
$user = $this->userRepository->find(...);
$entity = new YourEntity();
$entity->setUser($user);
$form = $this->createForm(YourEntity::class, $entity);
And it's not about EntityType. It's about any Type in Symfony - there is no way to bind a default value for them. Data is binded on Model.
UPD from comment: It's not true, that Form could be used without Model. It could be used without Doctrine Entity or any other ORM (or not ORM) Entity. But they still operate with data, i.o. with model.
\Symfony\Component\Form\FormFactoryInterface has definition
public function create($type = 'form', $data = null, array $options = array());
So some kind of $data is always present when you're using Form Component.

Related

Symfony2, Sonata, FormMapper, add hidden field to be handled in PrePersist/PreUpdate

I actually did some tricks so i could be able to persist a user if its ID is passed by an url parameter. (Custom action from user list).
/admin/se/api/bundle/create?user=7
I actually could not find how to send the user entity returned by a findByOne(array('id' => $user_id)) so i guess i'll need to pass the $user_id through a hidden field and handle its value in a PrePersist
Otherwise passing the id that way
->add('user', 'hidden', array('data' => $user_id))
will return an error :
This value is not valid.
Symfony\Component\Validator\ConstraintViolation
Object(Symfony\Component\Form\Form).children[user] = 7
Caused by:
Symfony\Component\Form\Exception\TransformationFailedException
Compound forms expect an array or NULL on submission.
This is my first attempt that is not working :
$container = $this->getConfigurationPool()->getContainer();
$request = $container->get('request');
$user_id = $request->get('user');
if(!empty($user_id)){
$em = $this->getModelManager()->getEntityManager($this->getClass());
$user = $em->getRepository('ApiBundle:User')->findOneBy(array('id' => $user_id));
if($user){
$formMapper
->with('User', array('description' => '<strong>User : </strong>'.$user->getDisplayName()))
->add('user', 'hidden', array('data' => $user_id))
// this of course doesn't work as explained above. How can i have my own hidden input not related to any property
->end();
}
So how would i do that? Any better solution is welcomed.
Well this is the best trick i found. I wish 'sonata_type_model_hidden' has more options. I guess i could do my own custom field to be able to do that. But i'm not sure how and anyway this solution is fast to implement.
$formMapper
->with('Guide', array('description' => '<strong>Guide : </strong>'.$guide->getDisplayName()))
->add('guide', 'sonata_type_model_autocomplete', array(
'property' => array('firstname', 'lastname', 'username', 'email'),
'data_class' => null, // IMPORTANT
'data' => $guide,
'attr' => array('class' => 'sonata-autocomplete-hidden'), // custom class
'label_attr' => array('class' => 'sonata-autocomplete-hidden'), // custom class
)
)
->end();
To hide the field :
.sonata-autocomplete-hidden{
display:none;
}
If you have any better solutions, you're welcome.

Add roles in FOSUserBundle

I feel the same as a forum user who posted this:
I implemented FOSUserBundle, and I want to add to RegisrationFormType roles that are taken from a table. When I had it like this:
->add('roles', 'choice', array('label' => 'Rol', 'required' => true,
'choices' => array( 'ROLE_ADMIN' => 'ADMINISTRADOR','ROLE_SUPERADMIN' => 'SUPERADMINISTRADOR',
'ROLE_USER' => 'USUARIO'), 'multiple' => true))
And it works! But they must leave the BD, I can not put the Entity field because roles should be an array, not an object. How I can generate the array with the roles taken from a table? In FosUSerbundle as you would add roles?
Thanks ....
I write because that user had no answer. I followed [the steps of official documentation] (https://github.com/FriendsOfSymfony/FOSUserBundle/blob/master/Resources/doc/index.md) and adding the above lines in the register of FOSUserBundle works, but I want to work this from the database.
And then I used to create groups this. Two additional tables were created and even now joined a group or role in the list, but not how to show the login to register a new user.
Has anyone solved it?
So you have the roles in a table? You could inject the EntityManager in the form type and use it to fetch the choices.
->add('roles', 'choice', array(
'label' => 'Rol',
'choices' => $this->getRoles(),
'multiple' => true,
'required' => true,
))
Then create a method which gives you the data the way you need.
Something like:
public function getRoles()
{
$roles = array();
$er = $this->em->getRepository('AppBundle:Role');
$results = $er->createQueryBuilder('r')
// conditions here
->getQuery()
->getResult();
// process the array?
foreach ($results as $role) {
$roles[$role->getId()] = $role->getLabel();
}
return $roles;
}

formMapper: a field twice in a form

I have a form where I ask the user to select a movie from a list that already exists on the database , and if the film does not exist in he must add another label from input.
When I did this I have an error of course :
$formMapper
->add('movie', 'sonata_type_model', array('label'=>'Select a movie', 'query' => $myData))
->add('movie', 'text', array('label'=>'or grasp one', 'required'=>false));
How do I correct this error?
Add property in your entity and check on add form by your own query like:
/* #var $DM \Doctrine\ORM\EntityManager */
$DM = $this->getDoctrine();
$Result = $DM->getRepository('Traffic\ControlBundle\Entity\Movies')->findBy(array('yourfilters' => $yourfilters));
if(count($Result) == 0){
$formbuilder->add('entityPropertyName','text');
}else{
$formbuilder->add('field','entity', array('class' => 'TrafficControlBundle:Movies'));
}
if movie not exists add text field by that property.
And on submit check if form is valid then set that property value in relational entity.
See this:
$em = $this->getDoctrine()->getManager();
$item->setMovieTitle($this->getRequest()->request->get('movie_name_field'));
$em->persist($item);
$em->flush();
You can map only one field to the form (managed by sonata) and manage the other by your own:
$formMapper
->add('movieList', 'sonata_type_model', array('label'=>'Select a movie', 'query' => $myData, 'mapped' => false))
->add('movie', 'text', array('label'=>'or grasp one', 'required'=>false));
Then In your Controller You can get the user choice:
$movieList = $form->get('movieList');
Then you can do whatever you want (create or update your object as exemple )

Save form data temporary

The user has the ability to filter a list of data. For this use case i build a form type "UserFilterType", which look like this.
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('firstName', 'text', array('attr' => array('maxlength' => 255)))
->add('roles', 'entity', array(
'class' => 'ApplicationUserBundle:Role',
'property' => 'name',
'label' => false,
'multiple' => false,
'expanded' => false,
'empty_value' => 'msg.role.all',
'translation_domain' => 'role', 'required' => false)
));
}
So far everything works very well. The user can filter the output. But if the user wants to sort the output, eg by first name. A get request executed and filter options lost. I will save the filter options temporary, maybe in a session.
I try the following option:
$session = $this->getRequest()->getSession();
$session->set('userFilter', serialize($form->getData());
.....
$form->setData(unserialize($session->set('userFilter')));
The form fields are filled out correctly, but if i execute the filter again with a post request i get the following error message
"Entities passed to the choice field must be managed. Maybe persist them in the entity manager?"
Does anyone have any idea how I should proceed? I hope I could describe my problem understandable.
Instead of field type 'entity', you might want to use 'choice' and set the querybuilder for the choicelist in the form.
This is caused by the fact, that 'entity' type field expects an Entity as a value. When you unserialize the data, even if it was an Entity from the database, the EntityManager doesn't know this(the unserialized object is just an instance of ApplicationUserBundle:Role, it might not be in the database yet) so this is not a "managed" entity.
You can also add the EntityManager that you found a "lost lamb" and add it back to the manager by:
$filters = unserialize($session->set('userFilter'));
$roles = $filters['roles'];
$entityManager->merge($roles);
This way you tell the EntityManager that this object is already persisted(through ->persist) and EntityManager should treat it as an object fetched from the database
but you need to test it

Render a Collection of Text Fields which is passed to Doctrine array field

In my entity i have an array field:
/**
* #var array
*
* #ORM\Column(name="work_experience", type="array")
*/
private $workExperience;
now i want to render a collection of text fields which will be passed to this array field.
->add('workExperience', 'collection', array(
'type' => 'text',
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
#'by_reference' => false,
'options' => array(
'required' => false,
'attr' => array('class' => 'line-box')
),
))
but now when i render this field, no input is shown? What is my mistake?
{{ form_row(form.workExperience) }}
Thank you
When prototyping, the collection field(s) is only render if your entity has a value assigned to workExperience inside your controller, Otherwise you would need to use javascript to take the prototype info and create the input field(s), this is also true if you want to add new field(s) with or without your entity having any value.
To get the following to render with values
{{ form_row(form.workExperience) }}
You can do something like the following:
public function controllerAction(Request $request)
{
//By populating your entity with values from your database
//workExperience should receive a value and be rendered in your form.
$em = $this->getDoctrine()->getManager();
$entity = $em
->getRepository('yourBundle:entity')
->findBy(...yourParameters...);
$form = $this->createForm('your_form_type', $entity);
...
Or
...
//If you do not have any data in your database for `workExperience`
//then you would need to set it in your controller.
$arr = array('email' => 'name#company.com', 'phone' => '888-888-8888');
$entity->setWorkExperience($arr);
$form = $this->createForm('your_form_type', $entity);
...
Keep in mind that collection are usually used for one-to-many or many-to-many relationships.
Using it for array can be done but there is not much documented on it. While this link is not a perfect fit, the general ideas presented many be helpful: form_collections

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