create timesheet for multiple users (#1716)

src/Validator/Constraints/TimesheetMultiUser.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Validator\Constraints;
+
+use Doctrine\Common\Annotations\Annotation\Target;
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * @Annotation
+ * @Target({"CLASS", "PROPERTY", "METHOD", "ANNOTATION"})
+ */
+class TimesheetMultiUser extends Constraint
+{
+    public const MISSING_USER_OR_TEAM = 'ts-multi-user-01';
+
+    protected static $errorNames = [
+        self::MISSING_USER_OR_TEAM => 'You must select at least one user or team.',
+    ];
+
+    public $message = 'This form has invalid settings.';
+
+    public function getTargets()
+    {
+        return self::CLASS_CONSTRAINT;
+    }
+}