[LiveComponent] Add better error message when hydrating dates

Author: 1ed

src/LiveComponent/src/LiveComponentHydrator.php

@@ -518,7 +518,7 @@ private function hydrateObjectValue(mixed $value, string $className, bool $allow
             }
 
             if (null !== $dateFormat) {
-                return $className::createFromFormat($dateFormat, $value);
+                return $className::createFromFormat($dateFormat, $value) ?: throw new BadRequestHttpException(sprintf('The model path "%s" was sent invalid date data "%s" or in an invalid format. Make sure it\'s a valid date and it matches the expected format "%s".', $propertyPathForError, $value, $dateFormat));
             }
 
             return new $className($value);

src/LiveComponent/tests/Integration/LiveComponentHydratorTest.php

@@ -1165,6 +1165,34 @@ public function __construct()
         }];
     }
 
+    public function testHydrationWithInvalidDate(): void
+    {
+        $this->expectException(BadRequestHttpException::class);
+        $this->expectExceptionMessage('The model path "createdAt" was sent invalid date data "0" or in an invalid format. Make sure it\'s a valid date and it matches the expected format "Y. m. d.".');
+
+        $this->executeHydrationTestCase(function () {
+            return HydrationTest::create(new class() {
+                #[LiveProp(writable: true, format: 'Y. m. d.')]
+                public \DateTime $createdAt;
+
+                public function __construct()
+                {
+                    $this->createdAt = new \DateTime();
+                }
+            })
+                ->mountWith([
+                    'createdAt' => new \DateTime('2023-03-05 9:23', new \DateTimeZone('America/New_York')),
+                ])
+                ->assertDehydratesTo([
+                    'createdAt' => '2023. 03. 05.',
+                ])
+                ->userUpdatesProps([
+                    'createdAt' => '0', // <-- invalid date
+                ])
+            ;
+        });
+    }
+
     public function testPassingArrayToWritablePropForHydrationIsNotAllowed(): void
     {
         $component = new class() {