Validator: added support for enums (#282)

Co-authored-by: martin.sedlacek <martin.sedlacek@motv.eu>

src/Forms/Validator.php

@@ -113,6 +113,10 @@ public static function validateEqual(Control $control, $arg): bool
 
 		foreach ($values as $val) {
 			foreach ($args as $item) {
+				if ($item instanceof \BackedEnum) {
+					$item = $item->value;
+				}
+
 				if ((string) $val === (string) $item) {
 					continue 2;
 				}

tests/Forms/Controls.BaseControl.enum.phpt

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * Test: Nette\Forms\Controls\BaseControl & enum
+ * @phpVersion 8.1
+ */
+
+declare(strict_types=1);
+
+use Nette\Forms\Form;
+use Nette\Forms\Validator;
+use Tester\Assert;
+
+require __DIR__ . '/../bootstrap.php';
+
+
+enum TestEnum: string
+{
+	case CASE_1 = 'case 1';
+	case CASE_2 = 'case 2';
+}
+
+
+before(function () {
+	Form::initialize(true);
+});
+
+
+test('validators for enums', function () {
+	$form = new Form;
+	$input = $form->addText('text');
+	$input->setValue(TestEnum::CASE_1->value);
+
+	Assert::true(Validator::validateEqual($input, TestEnum::CASE_1));
+	Assert::true(Validator::validateEqual($input, 'case 1'));
+	Assert::false(Validator::validateEqual($input, TestEnum::CASE_2));
+	Assert::false(Validator::validateEqual($input, 1));
+});