Add migration script for per notes

Author: k9845

per/migrations/0099_migrate_notes.py

@@ -0,0 +1,43 @@
+# Generated by Django 3.2.23 on 2024-02-22 05:45
+from django.db import migrations
+from django.db import models
+
+from api.logger import logger
+
+
+class Migration(migrations.Migration):
+    def migrate_formdata_notes(apps, schema_editor):
+        # NOTE: No any exact match for relationships
+        FormComponentResponse = apps.get_model("per", "FormComponentResponse")
+        FormData = apps.get_model("per", "FormData")
+        qs = FormComponentResponse.objects.annotate(
+            new_notes=models.Subquery(
+                FormData.objects.filter(
+                    question__component=models.OuterRef("component"),
+                    question=74,
+                )
+                .order_by(
+                    "-form__area",
+                    "-form__created_at",
+                    "form",
+                    "question__question_num",
+                )
+                .filter(notes__isnull=False)
+                .values("notes_en")[:1],
+                output_field=models.CharField(),
+            ),
+        ).filter(new_notes__isnull=False)
+
+        print(
+            qs.update(
+                notes=models.F("new_notes"),
+            )
+        )
+
+    dependencies = [
+        ("per", "0098_fix_reversion_data_20240208_0502"),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_formdata_notes, reverse_code=migrations.RunPython.noop),
+    ]