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spatie · Jul 26, 2021 · d002a34 · d002a34
1 parent 45b9730
commit d002a34
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diff --git a/src/Transformers/DataTransformer.php b/src/Transformers/DataTransformer.php
@@ -99,6 +99,10 @@ protected function resolvePropertyValue(
         array $nestedInclusionTree,
         array $nestedExclusionTree,
     ): mixed {
+        if($value === null){
+            return null;
+        }
+
         if ($value instanceof Lazy) {
             $value = $value->resolve();
         }

diff --git a/tests/DataTest.php b/tests/DataTest.php
@@ -331,6 +331,21 @@ public function __construct(
         $this->assertEquals(['date' => '16-05-1994'], $data->toArray());
     }
 
+    /** @test */
+    public function a_transformer_will_never_handle_a_null_value()
+    {
+        $data = new class(null) extends Data {
+            public function __construct(
+                #[WithTransformer(DateTransformer::class, 'd-m-Y')]
+                public $date
+            )
+            {
+            }
+        };
+
+        $this->assertEquals(['date' => null], $data->toArray());
+    }
+
     /** @test */
     public function it_can_dynamically_include_data_based_upon_the_request()
     {