- Fixed Datetime output

src/Entity/Field/Datetime.php

@@ -5,11 +5,13 @@ namespace Ulmus\Entity\Field;
 use Ulmus\Entity\EntityObjectInterface;
 
 class Datetime extends \DateTime implements EntityObjectInterface {
-        
-    public function load(...$arguments) 
+
+    public string $format = "Y-m-d H:i:s";
+
+    public function load(...$arguments)
     {
         $value = $arguments[0];
-        
+
         # From Timestamp
         if ( is_numeric($value) ) {
             return new static("@$value");
@@ -17,15 +19,15 @@ class Datetime extends \DateTime implements EntityObjectInterface {
 
         return new static($value);
     }
-    
-    public function save() 
+
+    public function save()
     {
-        return $this->getTimestamp();
+        return $this->__toString();
     }
-    
+
     public function __toString()
     {
-        return $this->format("Y-m-d H:i:s");
+        return $this->format($this->format);
     }
-    
-}
+
+}