From fc8fb4e26ac2f1898a6691db4f3b16fc077e2512 Mon Sep 17 00:00:00 2001
From: Ramiro Anacona Meneses <anacona16@gmail.com>
Date: Thu, 23 Feb 2017 11:40:01 -0500
Subject: [PATCH] add compatibility with symfony 2.8 and 3.0 for choice type
 field

---
 Form/Type/ScalingSettingFormType.php |  9 ++++++++-
 Util/LegacyFormHelper.php            | 24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 Util/LegacyFormHelper.php

diff --git a/Form/Type/ScalingSettingFormType.php b/Form/Type/ScalingSettingFormType.php
index 8737142..9cc4014 100644
--- a/Form/Type/ScalingSettingFormType.php
+++ b/Form/Type/ScalingSettingFormType.php
@@ -2,6 +2,7 @@
 
 namespace Anacona16\Bundle\ImageCropBundle\Form\Type;
 
+use Anacona16\Bundle\ImageCropBundle\Util\LegacyFormHelper;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
@@ -25,10 +26,16 @@ public function configureOptions(OptionsResolver $resolver)
      */
     public function buildForm(FormBuilderInterface $builder, array $options)
     {
+        $optionsScaling = $options['scaling'];
+
+        if (!LegacyFormHelper::isLegacy()) {
+            $optionsScaling = array_flip($optionsScaling);
+        }
+
         $builder
             ->add('scaling', ChoiceType::class, array(
                 'label' => 'form.label.scaling',
-                'choices' => $options['scaling'],
+                'choices' => $optionsScaling,
                 'translation_domain' => 'ImageCropBundle',
             ))
         ;
diff --git a/Util/LegacyFormHelper.php b/Util/LegacyFormHelper.php
new file mode 100644
index 0000000..ae253ec
--- /dev/null
+++ b/Util/LegacyFormHelper.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Anacona16\Bundle\ImageCropBundle\Util;
+
+use Symfony\Component\HttpKernel\Kernel;
+
+final class LegacyFormHelper
+{
+    const MINIMUM_MAJOR_VERSION = 3;
+
+    /**
+     * Check whether to use legacy form behaviour from Symfony <3.0.
+     *
+     * @param int $majorVersion Major version
+     *
+     * @static
+     *
+     * @return bool
+     */
+    public static function isLegacy($majorVersion = Kernel::MAJOR_VERSION)
+    {
+        return $majorVersion < self::MINIMUM_MAJOR_VERSION;
+    }
+}