Correctly initialize the sequence with PostgreSQL

backend/code_review_backend/issues/migrations/0015_remove_repository_phid_alter_repository_id.py

@@ -1,5 +1,6 @@
 # Generated by Django 5.1.2 on 2024-11-18 15:53
 
+from django.conf import settings
 from django.db import migrations, models
 
 
@@ -23,3 +24,17 @@ class Migration(migrations.Migration):
             options={"ordering": ("id",), "verbose_name_plural": "repositories"},
         ),
     ]
+    if "postgresql" in settings.DATABASES["default"]["ENGINE"]:
+        # Correctly initialize the sequence with PostgreSQL
+        migrations.append(
+            migrations.RunSQL(
+                """
+                SELECT setval(
+                    pg_get_serial_sequence('issues_repository', 'id'),
+                    coalesce(max(id)+1, 0),
+                    false
+                ) FROM issues_repository;
+                """,
+                reverse_sql=migrations.RunSQL.noop,
+            )
+        )