fix create timestamp issue

CHANGELOG.md

@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
 In order to read more about upgrading and BC breaks have a look at the [UPGRADE Document](UPGRADE.md).
 
+## 4.0.2 (25. November 2021)
+
++ Fix issue when `timestamp_create` is provided by admin UI the value is is not accpeted as its overwritten by the TimestampBehavior.
+
 ## 4.0.1 (3. August 2021)
 
 + [#25](https://github.com/luyadev/luya-module-news/pull/25) Fixed issue when using the Article Model in Queue Context.

src/models/Article.php

@@ -75,12 +75,23 @@ public function behaviors()
             ],
             [
                 'class' => TimestampBehavior::class,
-                'createdAtAttribute' => 'timestamp_create',
+                'createdAtAttribute' => false,
                 'updatedAtAttribute' => 'timestamp_update'
             ]
         ];
     }
 
+    public function init()
+    {
+        parent::init();
+
+        $this->on(self::EVENT_BEFORE_INSERT, function() {
+            if (empty($this->timestamp_create)) {
+                $this->timestamp_create = time();
+            }
+        });
+    }
+
     /**
      * @inheritdoc
      */