use Symfony\Component\Form\FormBuilderInterface; $builder->add('date', DateType::class, [ 'label' => 'Date', 'model_transformer' => new DateTimeTransformer() ]);
use Symfony\Component\Form\FormBuilderInterface; $builder->add('color', TextType::class, [ 'label' => 'Color', 'model_transformer' => new ColorTransformer() ]);In this example, we are adding a custom transformer called ColorTransformer to a TextType field called 'color'. This transformer could be used to normalize input data to a specific color format, such as hex codes or RGB values. Overall, FormBuilderInterface is a part of Symfony's Form Component package library, which provides a powerful and flexible way to build and handle forms in PHP applications. The addModelTransformer method is just one of many features that make Symfony's Form Component an excellent choice for building robust and scalable web applications.