Relations with custom API resource classes

Author: d8vjork

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.0.2] - 2020-11-11
+
+### Added
+
+- Relations with custom API resource classes
+
 ## [2.0.1] - 2020-07-02
 
 ### Added

src/Http/Resources/RelationshipsWithIncludes.php

@@ -78,7 +78,9 @@ protected function attachRelations(Model $model)
      */
     protected function processModelRelation(Model $model)
     {
-        $modelResource = new JsonApiResource($model, $this->authorise);
+        $modelResourceClass = $this->getModelResource($model);
+        /** @var \SkoreLabs\JsonApi\Http\Resources\JsonApiResource $modelResource */
+        $modelResource = new $modelResourceClass($model, $this->authorise);
         $modelIdentifier = $modelResource->getResourceIdentifier();
 
         if (!empty(Arr::get($modelIdentifier, $model->getKeyName(), null))) {
@@ -137,4 +139,17 @@ protected function checkUniqueness(Collection $collection)
             return implode('', $resource->getResourceIdentifier());
         });
     }
+
+    /**
+     * Get API resource from model.
+     *
+     * @param \Illuminate\Database\Eloquent\Model $model
+     * @return string
+     */
+    protected function getModelResource(Model $model)
+    {
+        return defined(get_class($model) . '::JSON_SERIALIZER')
+            ? $model::JSON_SERIALIZER
+            : JsonApiResource::class;
+    }
 }