class ChoiceValidator extends ConstraintValidator ChoiceValidator validates that the value is one of the expected values. Constants PRETTY_DATE Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s"). OBJECT_TO_STRING Whether to cast objects with a "__toString()" method to strings. Methods initialize(ExecutionContextInterface $context) Initializes the constraint validator. from ConstraintValidator validate(mixed $value, Constraint $constraint) Checks if

string getBlockPrefix() Returns the prefix of the template block name for this type. The block prefix defaults to the underscored short class name with the "Type" suffix removed (e.g. "UserProfileType" => "user_profile"). Return Value string The prefix of the template block name

class ChoiceView deprecated since version 2.7, to be removed in 3.0. Use {@link \Symfony\Component\Form\ChoiceList\View\ChoiceView} instead. Represents a choice in templates. Properties string $label The label displayed to humans. string $value The view representation of the choice. mixed $data The original choice value. Methods __construct(mixed $data, string $value, string $label) Creates a new ChoiceView. Details __construct(mixed $data,

configureOptions(OptionsResolver $resolver) Configures the options for this type. Parameters OptionsResolver $resolver The resolver for the options

finishView(FormView $view, FormInterface $form, array $options) Finishes the form view. This method gets called for each type in the hierarchy starting from the top most type. Type extensions can further modify the view. When this method is called, views of the form's children have already been built and finished and can be accessed. You should only implement such logic in this method that actually accesses child views. For everything else you are recommended to implement {@link buil

class ChoiceType extends AbstractType Methods buildForm(FormBuilderInterface $builder, array $options) Builds the form. buildView(FormView $view, FormInterface $form, array $options) Builds the form view. finishView(FormView $view, FormInterface $form, array $options) Finishes the form view. configureOptions(OptionsResolver $resolver) Configures the options for this type. string getBlockPrefix() Returns the prefix of the template block name for this type. string|null

buildView(FormView $view, FormInterface $form, array $options) Builds the form view. This method is called for each type in the hierarchy starting from the top most type. Type extensions can further modify the view. A view of a form is built before the views of the child forms are built. This means that you cannot access child views in this method. If you need to do so, move your logic to {@link finishView()} instead. Parameters FormView $view The view FormInterface $form The form

buildForm(FormBuilderInterface $builder, array $options) Builds the form. This method is called for each type in the hierarchy starting from the top most type. Type extensions can further modify the form. Parameters FormBuilderInterface $builder The form builder array $options The options

class ChoiceToValueTransformer implements DataTransformerInterface Methods __construct(ChoiceListInterface $choiceList) Constructor. mixed transform($choice) Transforms a value from the original representation to a transformed representation. mixed reverseTransform(mixed $value) Transforms a value from the transformed representation to its original representation. Details __construct(ChoiceListInterface $choiceList) Constructor. Para

mixed transform($choice) Transforms a value from the original representation to a transformed representation. This method is called on two occasions inside a form field: When the form field is initialized with the data attached from the datasource (object or array). When data from a request is submitted using {@link Form::submit()} to transform the new input data back into the renderable format. For example if you have a date field and submit '2009-10-10' you might accept this va