From 9a30a42db53b6514781ed1a8c73561e0febbd9cb Mon Sep 17 00:00:00 2001
From: imperosol <thgirod@hotmail.com>
Date: Tue, 1 Sep 2026 11:07:43 +0200
Subject: [PATCH] add created_at column to Subscription

---
 .../0017_subscription_created_at.py           | 47 +++++++++++++++++++
 subscription/models.py                        |  8 ++++
 2 files changed, 55 insertions(+)
 create mode 100644 subscription/migrations/0017_subscription_created_at.py

diff --git a/subscription/migrations/0017_subscription_created_at.py b/subscription/migrations/0017_subscription_created_at.py
new file mode 100644
index 00000000..b9cadbac
--- /dev/null
+++ b/subscription/migrations/0017_subscription_created_at.py
@@ -0,0 +1,47 @@
+# Generated by Django 5.2.17 on 2026-09-01 08:44
+from typing import TYPE_CHECKING
+
+import django.utils.timezone
+from django.db import migrations, models
+from django.db.migrations.state import StateApps
+from django.db.models import F, Min, Value
+from django.db.models.functions import Least
+from django.utils.timezone import now
+
+if TYPE_CHECKING:
+    import subscription.models
+
+
+def make_default_creation_date(apps: StateApps, schema_editor):
+    Subscription = apps.get_model("subscription", "Subscription")
+    Subscription.objects.update(
+        created_at=Least(
+            F("subscription_start"), Value(now()), output_field=models.DateTimeField()
+        )
+    )
+
+
+class Migration(migrations.Migration):
+    dependencies = [("subscription", "0016_alter_subscription_subscription_type")]
+
+    operations = [
+        migrations.AddField(
+            model_name="subscription",
+            name="created_at",
+            field=models.DateTimeField(
+                auto_now_add=True,
+                default=django.utils.timezone.now,
+                help_text=(
+                    "When this subscription was created. "
+                    "This date may differ from the start of the subscription."
+                ),
+                verbose_name="created_at",
+            ),
+            preserve_default=False,
+        ),
+        migrations.RunPython(
+            make_default_creation_date,
+            reverse_code=migrations.RunPython.noop,
+            elidable=True,
+        ),
+    ]
diff --git a/subscription/models.py b/subscription/models.py
index 08e11774..b86db75a 100644
--- a/subscription/models.py
+++ b/subscription/models.py
@@ -64,6 +64,14 @@ class Subscription(models.Model):
         max_length=20,
         verbose_name=_("location"),
     )
+    created_at = models.DateTimeField(
+        _("created_at"),
+        help_text=_(
+            "When this subscription was created. "
+            "This date may differ from the start of the subscription."
+        ),
+        auto_now_add=True,
+    )
 
     class Meta:
         ordering = ["subscription_start"]