feat(expressions): add date expression function

src/flextype/core/Entries/Expressions/DateExpression.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS
+ * and with the full functionality of a traditional CMS!
+ *
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+use function Flextype\registry;
+
+class DateExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [new ExpressionFunction('date', static fn (string $format, ?int $timestamp = null): string => '\date($format, $timestamp)', static fn (array $arguments, string $format, ?int $timestamp = null): string => \date($format, $timestamp))];
+    }
+}

tests/src/flextype/core/Entries/Expressions/DateExpressionTest.php

@@ -0,0 +1,19 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+use function Glowy\Filesystem\filesystem;
+use function Flextype\entries;
+
+beforeEach(function() {
+    filesystem()->directory(FLEXTYPE_PATH_PROJECT . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(FLEXTYPE_PATH_PROJECT . '/entries')->delete();
+});
+
+test('date expression', function () {
+    $date = date("F j, Y, g:i a");
+    entries()->create('date', ['test' => '[[ date("F j, Y, g:i a") ]]']);
+    expect(entries()->fetch('date')['test'])->toBe($date);
+});