3.0 Upgrade Guide: Added details describing how to pass data to a form through the options resolver
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@ -348,6 +348,58 @@ UPGRADE FROM 2.x to 3.0
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$form = $this->createForm(MyType::class);
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```
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* Passing custom data to forms now needs to be done
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through the options resolver.
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In the controller:
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Before:
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```php
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$form = $this->createForm(new MyType($variable), $entity, array(
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'action' => $this->generateUrl('action_route'),
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'method' => 'PUT',
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));
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```
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After:
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```php
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$form = $this->createForm(MyType::class, $entity, array(
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'action' => $this->generateUrl('action_route'),
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'method' => 'PUT',
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'custom_value' => $variable,
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));
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```
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In the form type:
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Before:
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```php
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class MyType extends AbstractType
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{
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private $value;
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public function __construct($variableValue)
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{
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$this->value = $value;
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}
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// ...
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}
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```
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After:
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```php
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public function buildForm(FormBuilderInterface $builder, array $options)
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{
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$value = $options['custom_value'];
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// ...
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}
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public function configureOptions(OptionsResolver $resolver)
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{
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$resolver->setDefaults(array(
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'custom_value' => null,
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));
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}
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```
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* The alias option of the `form.type_extension` tag was removed in favor of
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the `extended_type`/`extended-type` option.
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