In Symfony 2.6, I am using an entity form type that is unmapped:
$form
->add(
'myEntity', // Form field name
'entity',
[
'mapped' => false, // Not mapped
'class' => 'MyVendor\MyBundle\Entity\MyEntity',
'choices' => $MyEntityCollection, // list of MyEntity
'property' => 'name',
'empty_value' => 'Please select MyEntity',
'empty_data' => null,
'attr' => [
'label' => 'My label'
]
]
);
This allows user to properly select an item of MyEntity or leave it blank. According to that, I am adding a EventSubscriber to modify the preSubmitted data if any value is selected, and leave it as it is if no choice has been made.
Here is the eventSubscriber:
/**
* {#inheritdoc}
*/
public static function getSubscribedEvents()
{
return [
FormEvents::PRE_SUBMIT => 'preSubmitData'
];
}
/**
* #param FormEvent $event
*/
public function preSubmitData(FormEvent $event)
{
if( null === ($entity = $event->getForm()->get( 'myEntity' )->getData() ) ){
return;
}
// Set value if field has been defined
$event
->getForm()
->setData( $entity )
;
}
If user selects a choice other than blank, when I debug the preSubmitData function:
$event->getForm()->get('entity')->getData() gives null
$event->getData() gives an array having as 'entity' key the selected entity ID (just the scalar value)
My questions are:
Shouldn't $event->getForm()->get('entity')->getData() have the selected entity?
Why is $event->getForm()->get('entity')->getData() giving null if $event->getData() has at least the entity ID in it?
Is there any way to get the entity here (as it happens with the mapped entities) without having to call the entity manager and querying the entity via its ID?
Thanks in advance!
Edit
For the big picture, in my global form (other fields not described here) I have 2 depending fields:
A select A (not described here) with some options from a tree. This option does exist in the global form entity as a property.
A second B select named myEntity (described here). It doesn't exist as the global form entity as a property, thus the mapped = false. If any choice is made here, then the first select (A)'s option is overridden by this one. Else the first choice remains as the entity property value.
Hope is clearer now.
Ok, it was giving null because we are on the preSubmit event, and here data sent is not yet mapped within an entity.
Changing the event to submit gives the mapped entity as needed.
Related
so I Have this Symfony Form field :
$builder
->add('field1', CheckboxType::class, [
'required' => false,
])
->add('field2', NumberType::class, [
'disabled' => !$entite->getField1(),
'required' => $entite->getField1(),
]);
When the form is build, the field2 attributes are set depending on the entity field1 value.
Then, in the form, field2 HTML attributes are dynamically changes using javascript : if field1 value change, when add or remove 'disabled' / 'required" attributes accordingly.
The problem is, if the field2 is disabled when the form is build and then when enabled id with js, if we submit the form, in PHP the field2 is still disabled.
So I also change attributes in php, by adding this in the FormType:
...
$builder->addEventListener(FormEvents::PRE_SUBMIT, [$this, 'preSubmit']);
....
public function preSubmit(FormEvent $event)
{
$data = $event->getData(); // here $data['field2'] has the correct value
$form = $event->getForm(); // here $form->get('field2') value is null and disabled is true
// trying to remove the field
$form->remove('field2');
// And then re-add it with new attributes
$form
->add('field2', NumberType::class, [
'data' => $data['field2'],
'disabled' => !$data['field1'],
'required' => $data['field1'],
]);
}
So is there a bettey way to change attributes fields after submission (without removing and adding the field with new attributes) ??
Edit
So this works until I set an incorrect value type for field2.
field2 is a NumberType, and is I set an alpha value (like 'azerty')
instead of returning the formview with the fild error message, I get a Symfony Error :
A cycle was detected. Listeners to the PRE_SET_DATA event must not call getData() if the form data has not already been set. You should call getData() on the FormEvent object instead.
How I can prevent that and get the field error message instead.
Thanks.
Long story short, in Symfony 2.8 I've got Movie entity with actors field, which is ArrayCollection of entity Actor (ManyToMany) and I wanted the field to be ajax-loaded Select2.
When I don't use Ajax, the form is:
->add('actors', EntityType::class, array(
'class' => Actor::class,
'label' => "Actors of the work",
'multiple' => true,
'attr' => array(
'class' => "select2-select",
),
))
And it works.
I tried to put there an empty Select field:
->add('actors', ChoiceType::class, array(
'mapped' => false,
'multiple' => true,
'attr'=>array(
'class' => "select2-ajax",
'data-entity'=>"actor"
)
))
The Select2 Ajax works, everything in DOM looks the same as in previous example, but on form submit I get errors in the profiler: This value is not valid.:
Symfony\Component\Validator\ConstraintViolation
Object(Symfony\Component\Form\Form).children[actors] = [0 => 20, 1 => 21]
Caused by:
Symfony\Component\Form\Exception\TransformationFailedException
Unable to reverse value for property path "actors": Could not find all matching choices for the given values
Caused by:
Symfony\Component\Form\Exception\TransformationFailedException
Could not find all matching choices for the given values
The funny part is the data received is the same as they were when it was an EntityType: [0 => 20, 1 => 21]
I marked field as not mapped, I even changed field name to other than Movie entity's field name. I tried adding empty choices, I tried to leave it as EntityType but with custom query_builder, returning empty collection. Now I'm out of ideas.
How should I do it?
EDIT after Raymond's answer:
I added DataTransformer:
use Doctrine\Common\Persistence\ObjectManager;
use CompanyName\Common\CommonBundle\Entity\Actor;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\TransformationFailedException;
class ActorToNumberTransformer implements DataTransformerInterface
{
private $manager;
public function __construct(ObjectManager $objectManager)
{
$this->manager = $objectManager;
}
public function transform($actors)
{
if(null === $actors)
return array();
$actorIds = array();
foreach($actors as $actor)
$actorIds[] = $actor->getId();
return $actorIds;
}
public function reverseTransform($actorIds)
{
if($actorIds === null)
return array();
foreach($actorIds as $actorId)
{
$actor = $this->manager->getRepository('CommonBundle:Actor')->find($actorId);
if(null === $actor)
throw new TransformationFailedException(sprintf('An actor with id "%s" does not exist!', $actorId));
$actors[] = $actor;
}
return $actors;
}
}
Added it at the end of the MovieType buildForm():
$builder->get('actors')
->addModelTransformer(new ActorToNumberTransformer($this->manager));
$builder->get('actors')
->addViewTransformer(new ActorToNumberTransformer($this->manager));
And added service:
common.form.type.work:
class: CompanyName\Common\CommonBundle\Form\Type\MovieType
arguments: ["#doctrine.orm.entity_manager"]
tags:
- { name: form.type }
Nothing changed. On form submit, reverseTransform() gets the proper data, but profiler shows the same error. That's a big mistery for me now...
You'll need to add a DTO (Data Transformer ) to transform the value received from your form and return the appropriate object .
Since you're calling the value from Ajax it doesn't recognized it anymore as a an object but a text value.
Examples :
Symfony2 -Use of DTO
Form with jQuery autocomplete
The correct way isn't Data Transformer but Form Events, look here:
http://symfony.com/doc/current/form/dynamic_form_modification.html#form-events-submitted-data
In the example you have the field sport (an entity, like your Movie) and the field position (another entity, like actors).
The trick is to use ajax in order to reload entirely the form and use
PRE_SET_DATA and POST_SUBMIT.
I'm using Symfony 3.x but I think it's the same with 2.8.x
When you add data transformers and nothing seems to change, it sounds like the data never goes through your data transformers. The transformation probably fails before your new data transformers are called. Try to add a few lines to your code:
$builder->get('actors')->resetViewTransformers();
$builder->get('actors')->resetModelTransformers();
// and then add your own
I'm pretty deep into a complex Symfony2 project, with many entities and join tables in forms etc. but I'm having a strange issue with the "multiple" attribute within the form builder.
Basically I have a form where a user can add an illness to the CRM, and each illness can be attached to a specific store (depending on the language used). There is a list of stores that can be chosen by the user within this form, and the values are stored in a join table. However I only want one store to be chosen (i.e. a select drop down) rather than a multiple select list but using the false value for the multiple attribute throws an error which I will outline later.
Firstly, here is the buildForm() code in my Type.php file:
$builder->add('name' , 'text');
$builder->add('description' , 'textarea');
$builder->add('store', 'entity',
array(
'class' => 'AppBundle:Store',
'empty_value' => 'Choose store',
'property' => 'name',
'multiple' => false,
));
$builder->add('save', 'submit', array(
'attr' => array(
'class' => 'btn btn-primary'
),
));
And the entry for the store field in my Entity:
/**
* #var \Doctrine\Common\Collections\Collection
*
* #ORM\ManyToMany(targetEntity="AppBundle\Entity\Store", inversedBy="illness", cascade={"persist"})
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="store_id", referencedColumnName="id")
* })
*/
public $store;
However, if I used the false declaration for the multiple attribute in the form Type, when the form is submitted I receive the following error:
Warning: spl_object_hash() expects parameter 1 to be object, string given
because it looks like it's passing the text value of the select box, rather than the relevant Entity. When set as a multiple select box (i.e. set to true) then it works fine and persists as it should.
My controller code:
$addIllness = new Illness();
$form = $this->createForm(new IllnessType($em), $addIllness);
$form->handleRequest($request);
if ($form->isValid()) {
$em->persist($addIllness);
$em->flush();
return $this->redirect($this->generateUrl('app_illness_table'));
}
Having it as a multiple select box is not the end of the world, though I'd rather have it as a drop down select so the user cannot select more than one store - rather than me having to add an error message or note to tell them otherwise.
If anyone has an ideas as to why this may be happening, or has encountered it before please let me know, I would be very grateful!
Thank you
Michael
I have a form that is the bottleneck of my ajax-request.
$order = $this->getDoctrine()
->getRepository('AcmeMyBundle:Order')
->find($id);
$order = $order ? $order : new Order();
$form = $this->createForm(new OrderType(), $order);
$formView = $form->createView();
return $this->render(
'AcmeMyBundle:Ajax:order_edit.html.twig',
array(
'form' => $formView,
)
);
For more cleaner code I deleted stopwatch statements.
My OrderType has next fields:
$builder
->add('status') // enum (string)
->add('paid_status') // enum (string)
->add('purchases_price') // int
->add('discount_price') // int
->add('delivery_price') // int
->add('delivery_real_price', null, array('required' => false)) // int
->add('buyer_name') // string
->add('buyer_phone') // string
->add('buyer_email') // string
->add('buyer_address') // string
->add('comment') // string
->add('manager_comment') // string
->add('delivery_type') // enum (string)
->add('delivery_track_id') // string
->add('payment_method') // enum (string)
->add('payment_id') // string
->add('reward') // int
->add('reward_status') // enum (string)
->add('container') // string
->add('partner') // Entity: User
->add('website', 'website') // Entity: Website
->add('products', 'collection', array( // Entity: Purchase
'type' => 'purchase',
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false,
'property_path' => 'purchases',
'error_bubbling' => false,
));
Purchase type:
$builder
->add('amount')
->add('price')
->add('code', 'variant', array(
'property_path' => 'variantEntity',
'data_class' => '\Acme\MyBundle\Entity\Simpla\Variant'
))
;
Also Purchase type has a listener that is not significant here. It is represented in Symfony profiler below as variant_retrieve, purchase_form_creating. You can see that it takes about 200ms.
Here I put the result of profilers:
As you can see: $this->createForm(...) takes 1011ms, $form->createView(); takes 2876ms and form rendering in twig is also very slow: 4335ms. As stated by blackfire profiler all the deal in ObjectHydrator::gatherRowData() and UnitOfWork::createEntity().
Method createEntity() called 2223 times because there is some field that mapped with Variant entity and has form type Entity. But as you can see from above code there is no entity types for variant. My VariantType is simple extended text form type that has modelTransformer. To not mess up everything you can see code for similar Type class at docs.
I found with XDebug that buildView for VariantType has been called in Purchase's buildView with text form type. But after that from somewhere buildView for VariantType was called again and in this case it has entity form type. How can it be possible? I tried to define empty array in choices and preferred_choices on every my form type but it didn't change anything. What I need to do to prevent EntityChoiceList to be loaded for my form?
The described behavior looks as the work of the guesser. I have the feeling that there is need to show an some additional code (listeners, VariantType, WebsiteType, PartnerType).
Let's assume a some class has association variant to Variant and FormType for this class has code ->add('variant') without explicit specifying type (as I see there is a lot of places where the type is not specified). Then DoctrineOrmTypeGuesser comes in the game.
https://github.com/symfony/symfony/blob/2.7/src/Symfony/Bridge/Doctrine/Form/DoctrineOrmTypeGuesser.php#L46
This code assign the entity type (!) to this child. The EntityRepository::findAll() is called and all variants from DB are hydrated.
As for another form optimization ways:
Try to specify type in all possible cases to prevent a type guessing;
Use SELECT with JOINs to get an order as new sub-requests to DB are sent to set an underlying data for an every form maps relation;
Preserve keys for collection elements on a submission as a removing of a single element without a keys preserving will trigger unnecessary updates.
I also had the same problem with the entity type, I needed to list cities, there were like mire then 4000, what I did basically is to inject the choices into the form. In your controller you ask the Variants from the database, in a repository call, hydrate them as array, and you select only the id and the name, or title, and then you pass into the form, as options value. With this the database part will be much quicker.
I couldn't find a solution for my current problem in the web.
I got a formular and an entity.
If the formular is not valid ($form->isValid() returns false), the entity is saved with the invalid data anyway. I see the form errors and that's correct. But my entity should not be updated if the form is not valid. What is going wrong here?
My entity got a hand full fields and a many-to-many relation with extra fields too.
I can show you some code parts:
$entry = $em->getRepository('MyAppBundle:Entry')->find($id);
// ...
$form = $this->createForm(new EntryType($this->getUser(), $entry), $entry);
$request = $this->getRequest();
if ($request->getMethod() == 'POST') {
$form->bind($request);
// ...
// i set custom errors here by myself!
if ($entry->getDeadlineEnable() && NULL === $entry->getDeadlineAt()) {
$form->get('deadline_at')->addError(new FormError('Please enter a date.'));
}
// ...
if ($form->isValid()) {
$em->merge($entry);
$em->flush();
// ...
return $this->redirect($this->generateUrl('MyAppBundle_homepage'));
As you can see, I check the form with isValid, which works correct. It returns false if there is a form error, e.g.
$form->get('deadline_at')->addError(new FormError('Please enter a date.'));
But the entitiy gets updated exactly here in this line anyway:
if ($form->isValid()) {
Why is this?
This is a really bad problem here. I don't know why this happens.
Thanks for any advice.
EDIT:
More information:
I use validators too for all fields wich has simple conditions.
I do this in the EntryType.php # public function buildForm(FormBuilderInterface $builder, array $options), e.g.:
$builder->add('min_commitments', null, array(
'label' => 'Zusagen mindestens',
'attr' => array(
'class' => 'form-control',
'placeholder' => 'Ab wievielen findet\'s statt?',
'min' => 0,
'max' => 100,
),
'required' => false,
'invalid_message' => 'Das ist keine gütige Angabe.',
'constraints' => array(
new Range(array(
'minMessage' => 'Mindestens 1.',
'maxMessage' => 'Maximal 100.',
'min' => 1,
'max' => 100,
)),
),
));
This is a number field to type in a number between 1 and 100.
But for some fileds i use my own validation direclty in the controller action method because the fields (most of them are a combination of a checkbox field and an text field belonging to to this checkbox) because many fields are interdependent.
I still don't know whats wrong with isValid and why the entity behind this form gets saved even the form is not completely valid. isValid returns false there if an error exists (correct).
Could this maybe be caused by the many to many relation ship?
I implementet such a relationship to allow the user to select many checkboxes, where each checkbox represents an user. The relation rows are saved into the relation table EntryUser.
Here is the many to many field in the form definition (Entry.php):
/**
* #ORM\OneToMany(targetEntity="EntryUser", mappedBy="entry", cascade={"all"}, orphanRemoval=true)
*/
protected $entry_users; // One more thing: this is a one to many but it is a many to many relationship at all because i created a relationship table with extra fields so it bacame a own entity. on the other side, the file User.php got the oppsite part of the many-to-many relationship with:
User.php:
/**
* #ORM\OneToMany(targetEntity="EntryUser" , mappedBy="user" , cascade={"all"} , orphanRemoval=true)
*/
protected $entry_users;
The form->bind is what is actually updating the entity with posted
data regardless of the data's validity. You must have another flush
getting kicked off somewhere. Perhaps a listener? Normal workflow for
$form->isValid() === false is to redisplay the form with the invalid
data and error messages. Once again, it would appear that you have
something calling $em->flush.-
Credit to #Cerad
Have you ever tried validators? http://symfony.com/doc/current/book/validation.html
If your attached code is from your controller - the problem is that your condition is wrong.
if ($entry->getDeadlineEnable() && NULL === $entry->getDeadlineAt()) {
$form->get('deadline_at')->addError(new FormError('Please enter a date.'));
}
Controller isn't the best place to valide. How are you going to reuse the validator for the form?