fix error

Author: cristoforocervino

src/Bridge/Transformer/AbstractChoiceTransformer.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Matthias\SymfonyConsoleForm\Bridge\Transformer;
+
+use Matthias\SymfonyConsoleForm\Console\Formatter\Format;
+use Matthias\SymfonyConsoleForm\Form\FormUtil;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+abstract class AbstractChoiceTransformer extends AbstractTransformer
+{
+    protected function defaultValueFrom(FormInterface $form)
+    {
+        $defaultValue = $form->getData();
+        if (is_array($defaultValue)) {
+            $defaultValue = implode(',', $defaultValue);
+        }
+
+        return $defaultValue;
+    }
+}

src/Bridge/Transformer/AbstractTextInputBasedTransformer.php

@@ -13,4 +13,9 @@ public function transform(FormInterface $form): Question
     {
         return new Question($this->questionFrom($form), $this->defaultValueFrom($form));
     }
+
+    protected function defaultValueFrom(FormInterface $form)
+    {
+        return $form->getViewData();
+    }
 }

src/Bridge/Transformer/AbstractTransformer.php

@@ -22,6 +22,8 @@ public function __construct(TranslatorInterface $translator)
         $this->translator = $translator;
     }
 
+    abstract protected function defaultValueFrom(FormInterface $form);
+
     protected function questionFrom(FormInterface $form): string
     {
         $translationDomain = $this->translationDomainFrom($form);
@@ -34,19 +36,6 @@ protected function questionFrom(FormInterface $form): string
         return $this->formattedQuestion($question, $this->defaultValueFrom($form), $help);
     }
 
-    /**
-     * @return mixed
-     */
-    protected function defaultValueFrom(FormInterface $form)
-    {
-        $defaultValue = $form->getData();
-        if (is_array($defaultValue)) {
-            $defaultValue = implode(',', $defaultValue);
-        }
-
-        return $defaultValue;
-    }
-
     protected function translationDomainFrom(FormInterface $form): ?string
     {
         while ((null === $domain = $form->getConfig()->getOption('translation_domain')) && $form->getParent()) {

src/Bridge/Transformer/CheckboxTransformer.php

@@ -6,7 +6,7 @@
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Form\FormInterface;
 
-final class CheckboxTransformer extends AbstractTransformer
+final class CheckboxTransformer extends AbstractChoiceTransformer
 {
     public function transform(FormInterface $form): Question
     {

src/Bridge/Transformer/ChoiceTransformer.php

@@ -7,7 +7,7 @@
 use Symfony\Component\Form\ChoiceList\View\ChoiceView;
 use Symfony\Component\Form\FormInterface;
 
-final class ChoiceTransformer extends AbstractTransformer
+final class ChoiceTransformer extends AbstractChoiceTransformer
 {
     public function transform(FormInterface $form): Question
     {