ISSUE-172: Removed hard dependency on Symfony Add-on Transformers and Doctrine

Author: raymondschouten

composer.json

@@ -10,16 +10,17 @@
     ],
     "require": {
         "php": ">=7.2.5",
-        "doctrine/common": "^2.4",
-        "doctrine/orm": "^2.4",
         "symfony/form": "5.0.*"
     },
     "require-dev": {
+        "doctrine/common": "^2.4",
+        "doctrine/orm": "^2.4",
         "phpunit/phpunit": "^8.5"
     },
     "suggest": {
         "darkwebdesign/symfony-addon-pack": "All Symfony add-ons bundled together",
-        "darkwebdesign/symfony-form-types": "Enables the use of the EntityType Form Field"
+        "doctrine/common": "Required for EntityToIdentifierTransformer",
+        "doctrine/orm": "Required for EntityToIdentifierTransformer"
     },
     "autoload": {
         "psr-4": {

src/EntityToIdentifierTransformer.php

@@ -28,6 +28,10 @@
 use Symfony\Component\Form\Exception\InvalidArgumentException;
 use Symfony\Component\Form\Exception\TransformationFailedException;
 
+if (!interface_exists(ObjectManager::class)) {
+    throw new \LogicException('You cannot use "DarkWebDesign\SymfonyAddonTransformers\EntityToIdentifierTransformer" as the "doctrine/common" package is not installed. Try running "composer require doctrine/common".');
+}
+
 /**
  * Transforms between an identifier and a Doctrine entity.
  *
@@ -85,6 +89,10 @@ public function transform($value)
             throw new TransformationFailedException('Expected an object.');
         }
 
+        if (!class_exists(ClassUtils::class)) {
+            throw new \LogicException(sprintf('You cannot use "%s" as the "doctrine/common" package is not installed. Try running "composer require doctrine/common".', __CLASS__));
+        }
+
         $className = ClassUtils::getClass($value);
 
         if ($className !== $this->className && !is_subclass_of($className, $this->className)) {