Fixing form type compatibility.

Author: abdielcs

Form/Type/ExpandedMTMType.php

@@ -14,6 +14,7 @@
 use abdielcs\ExpandedCollectionBundle\Form\DataTransformer\MiddleClassTransformer;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 
 /**
@@ -34,7 +35,11 @@ public function buildForm(FormBuilderInterface $builder, array $options)
 
     public function getParent()
     {
-        return 'expanded_otm';
+        if (Kernel::MAJOR_VERSION > 2) {
+            return ExpandedOTMType::class ;
+        } else {
+            return 'expanded_otm';
+        }
     }
 
     public function getName()
@@ -51,6 +56,11 @@ public function getBlockPrefix()
      * {@inheritdoc}
      */
     public function setDefaultOptions(OptionsResolverInterface $resolver)
+    {
+        $this->configureOptions($resolver);
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
     {
         $resolver->setRequired(array(
             'middle_class'

Form/Type/ExpandedOTMType.php

@@ -25,7 +25,11 @@ class ExpandedOTMType extends AbstractType
 {
     public function getParent()
     {
-        return 'entity';
+        if (Kernel::MAJOR_VERSION > 2) {
+            return EntityType::class;
+        } else {
+            return 'entity';
+        }
     }
 
     public function getName()
@@ -42,6 +46,11 @@ public function getBlockPrefix()
      * {@inheritdoc}
      */
     public function setDefaultOptions(OptionsResolverInterface $resolver)
+    {
+        $this->configureOptions($resolver);
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
     {
         $resolver->setDefaults(array(
             'multiple' => true,

README.md

@@ -19,7 +19,7 @@ options setted to true. Read more about [entity type field](http://symfony.com/d
 Installation
 ------------
 
-### Step 1: Include the bundle in your require section of composer.json and do a composer update.
+### Step 1: Include the bundle in your require section of composer.json 
 
 ```json
 "require": {
@@ -28,7 +28,7 @@ Installation
     },
 ```
 
-This command requires you to have Composer installed globally, as explained
+Then do a composer update. This command requires you to have Composer installed globally, as explained
 in the [Composer documentation](https://getcomposer.org/doc/00-intro.md).
 
 ### Step 2: Enable the Bundle

Resources/config/services.yml

@@ -8,7 +8,7 @@ services:
        tags:
           - { name: form.type, alias: 'expanded_otm' }
 
-    expanded_otm.service:
+    expanded_mtm.service:
        class: "%expanded_mtm.form%"
        tags:
           - { name: form.type, alias: 'expanded_mtm' }