FormConfigBuilderInterface
addViewTransformer(DataTransformerInterface $viewTransformer, bool $forcePrepend = false)
Appends / prepends a transformer to the view transformer chain. The transform method of the transformer is used to convert data from the normalized to the view format. The reverseTransform method of the transformer is used to convert from the view to the normalized format.
Parameters DataTransformerInterface $viewTransformer bool $forcePrepend if set to true, p