Fix issues when "requireFieldPresence" is turned on for an entity.

src/Datasource/EntityTrait.php

@@ -1102,6 +1102,10 @@ protected function _nestedErrors(string $field): array
     {
         // Only one path element, check for nested entity with error.
         if (!str_contains($field, '.')) {
+            if (!$this->has($field)) {
+                return [];
+            }
+
             $entity = $this->get($field);
             if ($entity instanceof EntityInterface || is_iterable($entity)) {
                 return $this->_readError($entity);
@@ -1126,7 +1130,9 @@ protected function _nestedErrors(string $field): array
             $len = count($path);
             $val = null;
             if ($entity instanceof EntityInterface) {
-                $val = $entity->get($part);
+                if ($entity->has($part)) {
+                    $val = $entity->get($part);
+                }
             } elseif (is_array($entity)) {
                 $val = $entity[$part] ?? false;
             }

src/View/Form/EntityContext.php

@@ -253,7 +253,7 @@ public function val(string $field, array $options = []): mixed
                 }
             }
 
-            $val = $entity->get($part);
+            $val = $entity->has($part) ? $entity->get($part) : null;
             if ($val !== null) {
                 return $val;
             }

tests/TestCase/ORM/EntityTest.php

@@ -1117,6 +1117,9 @@ public function testGetErrorAndSetError(): void
         $entity->setError('foo', 'bar');
         $this->assertEquals(['bar'], $entity->getError('foo'));
 
+        $entity->requireFieldPresence(true);
+        $this->assertEquals([], $entity->getError('non_existent'));
+
         $expected = [
             'foo' => ['bar'],
         ];

tests/TestCase/View/Form/EntityContextTest.php

@@ -428,6 +428,7 @@ public function testValBasic(): void
         $result = $context->val('body');
         $this->assertEquals($row->body, $result);
 
+        $row->requireFieldPresence(true);
         $result = $context->val('nope');
         $this->assertNull($result);
     }

tests/TestCase/View/Helper/FormHelperTest.php

@@ -983,7 +983,10 @@ public function testCreateWithSecurity(): void
     {
         $this->View->setRequest($this->View->getRequest()->withAttribute('csrfToken', 'testKey'));
         $encoding = strtolower(Configure::read('App.encoding'));
-        $result = $this->Form->create($this->article, [
+
+        $article = new Article();
+        $article->requireFieldPresence(true);
+        $result = $this->Form->create($article, [
             'url' => '/articles/publish',
         ]);
         $expected = [
@@ -2815,6 +2818,17 @@ public function testControl(): void
         $this->assertHtml($expected, $result);
     }
 
+    public function testControlEntityWithRequirePresence(): void
+    {
+        $article = new Article();
+        $article->requireFieldPresence(true);
+        $this->Form->create($article);
+        $this->Form->control('title');
+
+        // We only need to check that Cake\Datasource\Exception\MissingPropertyException is not thrown
+        $this->expectNotToPerformAssertions();
+    }
+
     /**
      * testControlCustomization method
      *