i have an array with entities. I know that symfony has a collection type, but that what i want doesn't work as intended. I have created a FormType for a single entity and a FormType for the collection (formtype code for the collection):
$builder
->add('list', 'collection', array(
'label' => 'list',
'type' => new SingleItemType(),
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false
));
Now i have tried to create a Form
$arr = array(new Item(), new Item(), new Item());
$this->createForm(new CollectionListType(), $arr);
But this doesn't work; I get an error which means i should set "Item" as data_class, if i do this, an another error appears which means i should set data_class to null.
Another approach was to create a dummy entity which holds my array of Item-Entities but this doesn't works too.
Is there a simple approach to display a list of entities as collection form?
Greetings
I'm not sure totally understand your problem but I think you must create first an Entity with getList()/setList(). In your collection field, you can add a new "default" entity passing a value to "data" key in option array.
Related
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.
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
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
I have a scenario like this:
tracks ManyToMany instruments
I create the form in this way:
$builder
->add('instruments', 'entity_hidden', array(
'attr' => array('class' => 'one_req'),
'label' => 'form.instrument',
'translation_domain' => 'label',
'required' => false,
'class' => 'Acme\DemoBundle\Entity\Instrument'
))
"hidden_entity" is given by a custom transformer that you can find here: gist
although I believe that is not the problem.
The problem is that the user may not even choose any instrument (such asamong other specified with "required" => false).
When I go to save my returns this error:
Neither the property 'instruments' nor one of the methods 'setInstruments()',
'__set()' or '__call()' exist and have public access in
class 'Acme\DemoBundle\Entity\SoundtrackVersion'.
I do not understand why ..
Where am I doing wrong?
It sounds very obvious, but error can not lie. Check that Acme\DemoBundle\Entity\SoundtrackVersion entity has property instruments and methods setInstruments() and getInstruments().
Use case
I am learning Symfony2 and am creating a Table Tennis tracking app to learn the framework. I have configured my entities as follows.
Player 1..n Result n..1 Match
On my form I'd like to validate that the scores for a match are correct.
Implementation
Match has an ArrayCollection() of results.
My MatchType and ResultType forms contain the following.
// Form\MatchType
$builder->add('matchType', 'entity', array(
'class' => 'PingPongMatchesBundle:MatchType',
'property' => 'name',
)
)
->add('results', 'collection', array(
'type' => new ResultType(),
'allow_add' => true,
'by_reference' => false,
)
)
->add('notes');
// Form\ResultType
$builder->add('player', 'entity', array(
'class' => 'PingPongPlayerBundle:Player',
'query_builder' => function(EntityRepository $er) {
return $er->createQueryBuilder('p')
->orderBy('p.firstName', 'ASC');
},
))
->add('score');
Issue
I need to be able to validate the scores. However I'm not sure how to approach this type of validation as I need to compare two instances of my Result#score in order to know if they are valid or not.
Is anyone able to suggest a method or approach that I could use in order to be able to compare Result#score between the two different instances? Can I validate the ArrayCollection in the Match entity for example?
You could creat a custom validator constraint on Match entity.
http://symfony.com/doc/2.0/cookbook/validation/custom_constraint.html
Take a look in Callback constraint:
http://symfony.com/doc/2.1/reference/constraints/Callback.html