create timesheet for multiple users (#1716)

src/Validator/Constraints/TimesheetMultiUserValidator.php

@@ -0,0 +1,47 @@
+<?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 App\Form\Model\MultiUserTimesheet;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+final class TimesheetMultiUserValidator extends ConstraintValidator
+{
+    /**
+     * @param Timesheet|mixed $value
+     * @param Constraint $constraint
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (!($constraint instanceof TimesheetMultiUser)) {
+            throw new UnexpectedTypeException($constraint, TimesheetMultiUser::class);
+        }
+
+        if (!\is_object($value) || !($value instanceof MultiUserTimesheet)) {
+            return;
+        }
+
+        if ($value->getTeams()->isEmpty() && $value->getUsers()->isEmpty()) {
+            $this->context->buildViolation('You must select at least one user or team.')
+                ->atPath('users')
+                ->setTranslationDomain('validators')
+                ->setCode(TimesheetMultiUser::MISSING_USER_OR_TEAM)
+                ->addViolation();
+
+            $this->context->buildViolation('You must select at least one user or team.')
+                ->atPath('teams')
+                ->setTranslationDomain('validators')
+                ->setCode(TimesheetMultiUser::MISSING_USER_OR_TEAM)
+                ->addViolation();
+        }
+    }
+}