From e7026f9672fdefd1f923325858efdacb2ed7bb1a Mon Sep 17 00:00:00 2001
From: Serghei Iakovlev <egrep@protonmail.ch>
Date: Sun, 18 Apr 2021 14:18:09 +0300
Subject: [PATCH] Replacing auto_now and auto_now_add with default

This makes it possible to override the field value in tests.

Refs:
  - FactoryBoy/factory_boy#102
---
 .../migrations/0010_auto_20210418_1114.py     | 59 +++++++++++++++++++
 .../migrations/0005_auto_20210418_1114.py     | 43 ++++++++++++++
 branch/mixins.py                              | 15 ++++-
 3 files changed, 115 insertions(+), 2 deletions(-)
 create mode 100644 apps/blog/migrations/0010_auto_20210418_1114.py
 create mode 100644 apps/pages/migrations/0005_auto_20210418_1114.py

diff --git a/apps/blog/migrations/0010_auto_20210418_1114.py b/apps/blog/migrations/0010_auto_20210418_1114.py
new file mode 100644
index 00000000..e1a889c6
--- /dev/null
+++ b/apps/blog/migrations/0010_auto_20210418_1114.py
@@ -0,0 +1,59 @@
+# Copyright (C) 2021 Serghei Iakovlev <egrep@protonmail.ch>
+#
+# This file is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
+
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('blog', '0009_auto_20210414_1352'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='comment',
+            name='created_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date created',
+            ),
+        ),
+        migrations.AlterField(
+            model_name='comment',
+            name='updated_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date updated',
+            ),
+        ),
+        migrations.AlterField(
+            model_name='post',
+            name='created_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date created',
+            ),
+        ),
+        migrations.AlterField(
+            model_name='post',
+            name='updated_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date updated',
+            ),
+        ),
+    ]
diff --git a/apps/pages/migrations/0005_auto_20210418_1114.py b/apps/pages/migrations/0005_auto_20210418_1114.py
new file mode 100644
index 00000000..e98bc609
--- /dev/null
+++ b/apps/pages/migrations/0005_auto_20210418_1114.py
@@ -0,0 +1,43 @@
+# Copyright (C) 2021 Serghei Iakovlev <egrep@protonmail.ch>
+#
+# This file is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
+
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pages', '0004_alter_page_no_index'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='page',
+            name='created_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date created',
+            ),
+        ),
+        migrations.AlterField(
+            model_name='page',
+            name='updated_at',
+            field=models.DateTimeField(
+                default=django.utils.timezone.now,
+                verbose_name='Date updated',
+            ),
+        ),
+    ]
diff --git a/branch/mixins.py b/branch/mixins.py
index 59b0c69d..044cb866 100644
--- a/branch/mixins.py
+++ b/branch/mixins.py
@@ -16,22 +16,28 @@
 """Project wide mixins lives here."""
 
 from django.db import models
+from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 
 
 class ModelTimestampsMixin(models.Model):
     """
     Timestamps aware model mixin.
+
     Specify created_at and updated_at fields for a model.
     """
 
+    # Do not use 'auto_now_add=True' here to be
+    # able override created_at field easily in tests.
     created_at = models.DateTimeField(
-        auto_now_add=True,
+        default=timezone.now,
         verbose_name=_('Date created'),
     )
 
+    # Do not use 'auto_now=True' here to be
+    # able override updated_at field easily in tests.
     updated_at = models.DateTimeField(
-        auto_now=True,
+        default=timezone.now,
         verbose_name=_('Date updated'),
     )
 
@@ -40,6 +46,11 @@ class Meta:
 
         abstract = True
 
+    def save(self, *args, **kwargs):
+        """On save, update updated_at timestamp"""
+        self.updated_at = timezone.now
+        return super().save(*args, **kwargs)
+
 
 class PageDetailsMixin:
     """Specify page details to the template context."""