From 58858e2f7dcca03595470c37e062ef5882cc7202 Mon Sep 17 00:00:00 2001
From: Dennis Eichhorn <spl1nes.com@googlemail.com>
Date: Thu, 10 Sep 2020 20:18:47 +0200
Subject: [PATCH] implement immutable datetime

---
 Models/Task.php              | 6 +++---
 Models/TaskElement.php       | 6 +++---
 Models/TaskElementMapper.php | 2 +-
 Models/TaskMapper.php        | 2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Models/Task.php b/Models/Task.php
index bdf6c09..1e31aa8 100755
--- a/Models/Task.php
+++ b/Models/Task.php
@@ -62,7 +62,7 @@ class Task implements \JsonSerializable
      * @var \DateTime
      * @since 1.0.0
      */
-    protected \DateTime $createdAt;
+    protected \DateTimeImmutable $createdAt;
 
     /**
      * Description.
@@ -184,7 +184,7 @@ class Task implements \JsonSerializable
     public function __construct()
     {
         $this->createdBy = new NullAccount();
-        $this->createdAt = new \DateTime('now');
+        $this->createdAt = new \DateTimeImmutable('now');
         $this->schedule  = new Schedule();
         $this->start     = new \DateTime('now');
         $this->due       = new \DateTime('now');
@@ -410,7 +410,7 @@ class Task implements \JsonSerializable
      *
      * @since 1.0.0
      */
-    public function getCreatedAt() : \DateTime
+    public function getCreatedAt() : \DateTimeInterface
     {
         return $this->createdAt;
     }
diff --git a/Models/TaskElement.php b/Models/TaskElement.php
index 69a3230..b1499b5 100755
--- a/Models/TaskElement.php
+++ b/Models/TaskElement.php
@@ -76,7 +76,7 @@ class TaskElement implements \JsonSerializable
      * @var \DateTime
      * @since 1.0.0
      */
-    private \DateTime $createdAt;
+    private \DateTimeImmutable $createdAt;
 
     /**
      * Status.
@@ -135,7 +135,7 @@ class TaskElement implements \JsonSerializable
     {
         $this->due = new \DateTime('now');
         $this->due->modify('+1 day');
-        $this->createdAt = new \DateTime('now');
+        $this->createdAt = new \DateTimeImmutable('now');
         $this->createdBy = new NullAccount();
     }
 
@@ -156,7 +156,7 @@ class TaskElement implements \JsonSerializable
      *
      * @since 1.0.0
      */
-    public function getCreatedAt() : \DateTime
+    public function getCreatedAt() : \DateTimeInterface
     {
         return $this->createdAt;
     }
diff --git a/Models/TaskElementMapper.php b/Models/TaskElementMapper.php
index 5472bba..8e76373 100755
--- a/Models/TaskElementMapper.php
+++ b/Models/TaskElementMapper.php
@@ -43,7 +43,7 @@ final class TaskElementMapper extends DataMapperAbstract
         'task_element_due'        => ['name' => 'task_element_due',        'type' => 'DateTime', 'internal' => 'due'],
         'task_element_task'       => ['name' => 'task_element_task',       'type' => 'int',      'internal' => 'task'],
         'task_element_created_by' => ['name' => 'task_element_created_by', 'type' => 'int',      'internal' => 'createdBy', 'readonly' => true],
-        'task_element_created_at' => ['name' => 'task_element_created_at', 'type' => 'DateTime', 'internal' => 'createdAt', 'readonly' => true],
+        'task_element_created_at' => ['name' => 'task_element_created_at', 'type' => 'DateTimeImmutable', 'internal' => 'createdAt', 'readonly' => true],
     ];
 
     /**
diff --git a/Models/TaskMapper.php b/Models/TaskMapper.php
index bc8b14c..1c2da4f 100755
--- a/Models/TaskMapper.php
+++ b/Models/TaskMapper.php
@@ -53,7 +53,7 @@ final class TaskMapper extends DataMapperAbstract
         'task_schedule'   => ['name' => 'task_schedule',   'type' => 'int',      'internal' => 'schedule'],
         'task_start'      => ['name' => 'task_start',      'type' => 'DateTime', 'internal' => 'start'],
         'task_created_by' => ['name' => 'task_created_by', 'type' => 'int',      'internal' => 'createdBy', 'readonly' => true],
-        'task_created_at' => ['name' => 'task_created_at', 'type' => 'DateTime', 'internal' => 'createdAt', 'readonly' => true],
+        'task_created_at' => ['name' => 'task_created_at', 'type' => 'DateTimeImmutable', 'internal' => 'createdAt', 'readonly' => true],
     ];
 
     /**