fix: Relationships::mapRelationships when data is empty

Author: Ark4ne

CHANGELOG-1.1.md

@@ -1,6 +1,10 @@
 Release note
 ============
 
+# v1.1.5
+### Fixes
+- `Relationships::mapRelationships` when data is empty
+
 # v1.1.4
 ### Changes
 - phpstan lvl 6 compliant

src/Resources/Concerns/Relationships.php

@@ -87,6 +87,6 @@ private function mapRelationship(
             }
         }
 
-        return $resource['data'];
+        return $resource['data'] ?? [];
     }
 }

src/Resources/Relationship.php

@@ -117,7 +117,7 @@ public function forRelation(string $relation): self
      * @param \Illuminate\Http\Request $request
      * @param bool                     $included
      *
-     * @return array{data: array{data?:mixed, links?:mixed, meta?:mixed}, included?: mixed, with?: mixed}
+     * @return array{data?: array{data?:mixed, links?:mixed, meta?:mixed}, included?: mixed, with?: mixed}
      */
     public function toArray(mixed $request, bool $included = true): array
     {