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

mixed reverseTransform(array $array) Parameters array $array Return Value mixed The value in the original representation Exceptions TransformationFailedException If the given value is not an array or if no matching choice could be found for some given value.

mixed transform(array $array) Parameters array $array Return Value mixed The value in the transformed representation Exceptions TransformationFailedException If the given value is not an array.

class ChoiceToBooleanArrayTransformer implements DataTransformerInterface deprecated since version 2.7, to be removed in 3.0. Use {@link \Symfony\Component\Form\ChoiceList\LazyChoiceList} instead. Methods __construct(ChoiceListInterface $choiceList, bool $placeholderPresent) Constructor. mixed transform(mixed $choice) Transforms a single choice to a format appropriate for the nested checkboxes/radio buttons. mixed reverseTransform(array $values) Transforms a checkbox/radio bu

class ChoicesToValuesTransformer implements DataTransformerInterface Methods __construct(ChoiceListInterface $choiceList) Constructor. mixed transform(array $array) mixed reverseTransform(array $array) Details __construct(ChoiceListInterface $choiceList) Constructor. Parameters ChoiceListInterface $choiceList mixed transform(array $array) Parameters array $array Return Value mixed The val

mixed reverseTransform(array $values) Transforms a checkbox/radio button array to a single choice. The input value is an array with the choices as keys and true/false as values, depending on whether a given choice is selected. The output is the selected choice. Parameters array $values An array of values Return Value mixed The value in the original representation Exceptions TransformationFailedException If the given value is not an array, if the recuperation of the choices fail

mixed transform(mixed $array) Transforms an array of choices to a format appropriate for the nested checkboxes/radio buttons. The result is an array with the options as keys and true/false as values, depending on whether a given option is selected. If this field is rendered as select tag, the value is not modified. Parameters mixed $array An array Return Value mixed The value in the transformed representation Exceptions TransformationFailedException If the given value is not an

ChoiceQuestion setPrompt(string $prompt) Sets the prompt for choices. Parameters string $prompt Return Value ChoiceQuestion The current instance

mixed reverseTransform(mixed $values) Transforms a checkbox/radio button array to an array of choices. The input value is an array with the choices as keys and true/false as values, depending on whether a given choice is selected. The output is an array with the selected choices. Parameters mixed $values An array Return Value mixed The value in the original representation Exceptions TransformationFailedException If the given value is not an array, if the recuperation of the cho