Improve max join limit error

Author: dunglas

src/Bridge/Doctrine/Orm/Extension/EagerLoadingExtension.php

@@ -126,7 +126,7 @@ private function apply(bool $collection, QueryBuilder $queryBuilder, QueryNameGe
     private function joinRelations(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, bool $forceEager, bool $fetchPartial, string $parentAlias, array $options = [], array $normalizationContext = [], bool $wasLeftJoin = false, int &$joinCount = 0, int $currentDepth = null)
     {
         if ($joinCount > $this->maxJoins) {
-            throw new RuntimeException('The total number of joined relations has exceeded the specified maximum. Raise the limit if necessary, or use the "max_depth" option of the Symfony serializer.');
+            throw new RuntimeException('The total number of joined relations has exceeded the specified maximum. Raise the limit if necessary with the "api_platform.eager_loading.max_joins" configuration key (https://api-platform.com/docs/core/performance/#eager-loading), or limit the maximum serialization depth using the "enable_max_depth" option of the Symfony serializer (https://symfony.com/doc/current/components/serializer.html#handling-serialization-depth).');
         }
 
         $currentDepth = $currentDepth > 0 ? $currentDepth - 1 : $currentDepth;

tests/Bridge/Doctrine/Orm/Extension/EagerLoadingExtensionTest.php

@@ -330,7 +330,7 @@ public function testDenormalizeItemWithExistingGroups()
     public function testMaxJoinsReached()
     {
         $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage('The total number of joined relations has exceeded the specified maximum. Raise the limit if necessary, or use the "max_depth" option of the Symfony serializer.');
+        $this->expectExceptionMessage('The total number of joined relations has exceeded the specified maximum. Raise the limit if necessary with the "api_platform.eager_loading.max_joins" configuration key (https://api-platform.com/docs/core/performance/#eager-loading), or limit the maximum serialization depth using the "enable_max_depth" option of the Symfony serializer (https://symfony.com/doc/current/components/serializer.html#handling-serialization-depth).');
 
         $resourceMetadataFactoryProphecy = $this->prophesize(ResourceMetadataFactoryInterface::class);
         $resourceMetadataFactoryProphecy->create(Dummy::class)->willReturn(new ResourceMetadata());