created_at required with default

kfet/migrations/0053_created_at.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('kfet', '0052_category_addcost'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='account',
+            name='created_at',
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+    ]

kfet/models.py

@@ -41,7 +41,7 @@ class Account(models.Model):
         max_digits = 6, decimal_places = 2,
         default = 0)
     is_frozen = models.BooleanField("est gelé", default = False)
-    created_at = models.DateTimeField(auto_now_add = True, null = True)
+    created_at = models.DateTimeField(default=timezone.now)
     # Optional
     PROMO_CHOICES = [(r,r) for r in range(1980, date.today().year+1)]
     promo = models.IntegerField(