Populate Multi select drop drop down zend 3 - php

Question

Hello everyone i am getting really hard time populating my multi select drop down in my form.
what i have tried so far was adding factory for my form which is like this
class MovieFormFactory
{
public function __invoke(ContainerInterface $container, $requestedName, array $options = null)
{
$entityManager = $container->get('doctrine.entitymanager.orm_default');
$actors = $entityManager->getRepository(Actor::class)->findAll();
$form = new MovieForm();
$form->setActors($data);
return $form;
}
}
my form
Class MovieForm extends Form
{
private $actors = [];
public function setActors($actorsData){
$this->actors = $actors
}
public function __construct()
{
parent::__construct('post-form');
$this->setAttribute('method', 'post');
$this->addElements();
$this->addInputFilter();
$this->add([
'type' => 'select',
'name' => 'actors',
'attributes' => [
'id' => 'actors',
'multiple' => true
],
'options' => [
'label' => 'Actors',
'value_options' => $this->actors,
],
]);
$this->add([
'type' => 'select',
'name' => 'directors',
'attributes' => [
'id' => 'directors',
],
'options' => [
'label' => 'Director',
'value_options' => $this->getOptionForSelect($directors),
],
]);
}
/**
* This method adds elements to form (input fields and submit button).
*/
protected function addElements()
{
// Add "title" field
$this->add([
'type' => 'text',
'name' => 'title',
'attributes' => [
'id' => 'title'
],
'options' => [
'label' => 'Title',
],
]);
// Add "description" field
$this->add([
'type' => 'textarea',
'name' => 'description',
'attributes' => [
'id' => 'description'
],
'options' => [
'label' => 'Description',
],
]);
// Add "tags" field
// $this->add([
// 'type' => 'text',
// 'name' => 'actors',
// 'attributes' => [
// 'id' => 'actors',
// 'multiple' => 'multiple'
// ],
// 'options' => [
// 'label' => 'Actors',
// 'value_options' => $this->getOptionForSelect(),
// ],
// ]);
// Add "status" field
$this->add([
'type' => 'select',
'name' => 'status',
'attributes' => [
'id' => 'status'
],
'options' => [
'label' => 'Status',
'value_options' => [
MovieStatusEnum::STATUS_DRAFT => MovieStatusEnum::STATUS_DRAFT,
MovieStatusEnum::STATUS_PUBLISHED => MovieStatusEnum::STATUS_PUBLISHED,
]
],
]);
// Add the submit button
$this->add([
'type' => 'submit',
'name' => 'submit',
'attributes' => [
'value' => 'Create',
'id' => 'submitbutton',
],
]);
}
/**
* This method creates input filter (used for form filtering/validation).
*/
private function addInputFilter()
{
$inputFilter = new InputFilter();
$this->setInputFilter($inputFilter);
$inputFilter->add([
'name' => 'title',
'required' => true,
'filters' => [
['name' => 'StringTrim'],
['name' => 'StripTags'],
['name' => 'StripNewlines'],
],
'validators' => [
[
'name' => 'StringLength',
'options' => [
'min' => 1,
'max' => 1024
],
],
],
]);
$inputFilter->add([
'name' => 'description',
'required' => true,
'filters' => [
['name' => 'StripTags'],
],
'validators' => [
[
'name' => 'StringLength',
'options' => [
'min' => 1,
'max' => 4096
],
],
],
]);
$inputFilter->add([
'name' => 'actors',
'required' => true,
]);
}
private function getOptionForSelect($data)
{
foreach ($data as $person) {
$selectData[$person->getId()] = $person->getName();
}
return $selectData;
}
}
and this is my registered factory in module.config.php
'form_elements' => [
'factories' => [
Form\MovieForm::class => Form\Factory\MovieFormFactory::class
]
],
but nothing seems to work i am unable to show my actors while creating a movie and unable to show selected actors while editing a movie can some please guide me here i am new to zend.

Answer 1

In the constructor, the line value_options' => $this->actors is wrong because $this->actors is not set yet. In your factory you write :
$form = new MovieForm();
$form->setActors($data);
You must therefore declare the public method setActors() in the class MovieForm which will take care of setting up the options array.
public function setActors($array)
{
$this->get('actors')->setValueOptions($array);
}