new custom expression language function 'isNullOrEmpty'

src/Authorization/AbstractAuthorizationService.php

@@ -213,6 +213,7 @@ abstract class AbstractAuthorizationService implements ContextAwareNormalizerInt
     {
         $roleExpressions = [];
         foreach ($entitiesConfigNode as $entityShortName => $entityNode) {
+            dump($entityNode);
             $entityClassName = $entityNode[AuthorizationConfigDefinition::ENTITY_CLASS_NAME_CONFIG_NODE];
             $attributeNames = [];
 

src/ExpressionLanguage/ExpressionFunctionProviders/StringExpressionFunctionProvider.php

+<?php
+
+declare(strict_types=1);
+
+namespace Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders;
+
+use Dbp\Relay\CoreBundle\Helpers\Tools;
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class StringExpressionFunctionProvider implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions(): array
+    {
+        return [
+            new ExpressionFunction('isNullOrEmpty',
+                function (string $varName): string {
+                    return sprintf('isNullOrEmpty(%s)', $varName);
+                },
+                function ($arguments, $varName): bool {
+                    return Tools::isNullOrEmpty($varName);
+                }),
+        ];
+    }
+}

src/ExpressionLanguage/ExpressionLanguage.php

@@ -10,6 +10,7 @@ use Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders\MapExpre
 use Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders\PhpArrayExpressionFunctionProvider;
 use Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders\PhpNumericExpressionFunctionProvider;
 use Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders\PhpStringExpressionFunctionProvider;
+use Dbp\Relay\CoreBundle\ExpressionLanguage\ExpressionFunctionProviders\StringExpressionFunctionProvider;
 use Psr\Cache\CacheItemPoolInterface;
 use Symfony\Component\ExpressionLanguage\ExpressionLanguage as SymfonyExpressionLanguage;
 
@@ -24,6 +25,7 @@ class ExpressionLanguage extends SymfonyExpressionLanguage
             new PhpNumericExpressionFunctionProvider(),
             new PhpStringExpressionFunctionProvider(),
             new ArrayExpressionFunctionProvider(),
+            new StringExpressionFunctionProvider(),
         ], $providers);
 
         parent::__construct($cache, $providers);