refactor: replace latest_checkout table primary key (#1681)

Author: gustavobtflores

backend/kernelCI_app/migrations/0011_modify_latest_checkout_primary_key.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.2.9 on 2025-12-16 19:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("kernelCI_app", "0010_add_hardware_denormalization_models"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="latestcheckout",
+            name="checkout_id",
+            field=models.TextField(),
+        ),
+        migrations.AddField(
+            model_name="latestcheckout",
+            name="id",
+            field=models.AutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AddIndex(
+            model_name="latestcheckout",
+            index=models.Index(
+                fields=["checkout_id"], name="latest_checkout_checkout_id"
+            ),
+        ),
+    ]

backend/kernelCI_app/models.py

@@ -281,7 +281,8 @@ class Meta:
 
 
 class LatestCheckout(models.Model):
-    checkout_id = models.TextField(primary_key=True)
+    id = models.AutoField(primary_key=True)
+    checkout_id = models.TextField()
     start_time = models.DateTimeField()
 
     origin = models.CharField(max_length=100)
@@ -303,6 +304,9 @@ class Meta:
                 nulls_distinct=False,
             ),
         ]
+        indexes = [
+            models.Index(fields=["checkout_id"], name="latest_checkout_checkout_id"),
+        ]
 
 
 class PendingTest(models.Model):