Update heahdude example

Now working, type error catching was missing.

src/Controller/TestHeahdudeController.php

@@ -47,34 +47,24 @@ class TestHeahdudeController extends AbstractController
                     $forms = iterator_to_array($forms);
                     try {
                         $viewData = new ParentModel($forms['content']->getData(), new ColorVo($forms['color']->getData()));
-                    } catch (InvalidColorException $error) {
-                        // What to do here ?!
 
-                        // This does not work
-                        // $forms['colorCondition']->setData(false);
-                        // Even if it would, the error path is wrong!
-                    }
+
+                    // Catching all potential exception will result in null data in the form, which is ok.
+                    } catch (InvalidColorException $error) {} catch (\TypeError $error) {}
                 }
             })
             ->add('color', ColorType::class, [
+                // Those constraints will act on form data, not view data. The form data remains not altered if there
+                // is an exception while processing the datamapper.
                 'constraints' => [
                     new Type(['type' => 'string']),
                     new Callback(['callback' => ColorVo::class . '::validateColor'])
                 ]
             ])
             ->add('content', TextType::class)
-            ->add('colorCondition', CheckboxType::class, [
-                'label' => 'Accept color',
-                'required' => false,
-                'mapped' => false,
-                'empty_data' => true,
-                'constraints' => new IsTrue(['message' => 'Wrong color input'])
-            ])
             ->getForm();
         $form->submit(['color' => 10, 'content' => 'foobar']);
 
-        dump($form->getErrors(true, true));
-
         return $this->json([
             'message' => 'Welcome to your new controller!',
             'path' => 'src/Controller/TestVoFormController.php',