chore: migrate data to new alternative_names field

uses three migrations to copy data from one field to the other,
rename the field and delete the old one.

apis_ontology/filtersets.py

@@ -5,7 +5,10 @@
 from django.db import models
 import unicodedata
 
-from apis_core.apis_entities.filtersets import AbstractEntityFilterSet
+from apis_core.apis_entities.filtersets import (
+    AbstractEntityFilterSet,
+    ABSTRACT_ENTITY_FILTERS_EXCLUDE,
+)
 from apis_core.collections.models import SkosCollection, SkosCollectionContentObject
 from django.contrib.contenttypes.models import ContentType
 
@@ -19,6 +22,8 @@
 # helpers
 #########
 
+ABSTRACT_ENTITY_FILTERS_EXCLUDE += ["alternative_names"]
+
 
 def remove_quotes(token):
     return token.strip('"')

apis_ontology/migrations/0045_auto_20241206_1028.py

@@ -0,0 +1,42 @@
+# Generated by Django 5.1.4 on 2024-12-06 10:28
+
+from django.db import migrations
+import json
+
+
+def convert_alternative_names(apps, schema_editor):
+    """Convert alternative_names string field to JSON field alternative_names_new"""
+    Person = apps.get_model("apis_ontology", "Person")
+
+    for person in Person.objects.all():
+        if person.alternative_names:
+            # Split on newlines and filter out empty strings
+            names = [
+                {"art": "", "end": "", "name": name.strip(), "start": ""}
+                for name in person.alternative_names.split("\n")
+                if name.strip()
+            ]
+            # Convert to JSON format
+            person.alternative_names_new = names
+            person.save()
+
+
+def reverse_convert(apps, schema_editor):
+    """Reverse operation: convert JSON back to newline-separated string"""
+    Person = apps.get_model("apis_ontology", "Person")
+
+    for person in Person.objects.all():
+        if person.alternative_names_new:
+            names = json.loads(person.alternative_names_new)
+            person.alternative_names = "\n".join(names)
+            person.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("apis_ontology", "0044_person_alternative_names_new_and_more"),
+    ]
+
+    operations = [
+        migrations.RunPython(convert_alternative_names, reverse_code=reverse_convert),
+    ]

apis_ontology/migrations/0046_remove_person_alternative_names_and_more.py

@@ -0,0 +1,21 @@
+# Generated by Django 5.1.4 on 2024-12-06 12:30
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('apis_ontology', '0045_auto_20241206_1028'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='person',
+            name='alternative_names',
+        ),
+        migrations.RemoveField(
+            model_name='versionperson',
+            name='alternative_names',
+        ),
+    ]

apis_ontology/migrations/0047_rename_alternative_names_new_person_alternative_names_and_more.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.1.4 on 2024-12-06 12:31
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('apis_ontology', '0046_remove_person_alternative_names_and_more'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='person',
+            old_name='alternative_names_new',
+            new_name='alternative_names',
+        ),
+        migrations.RenameField(
+            model_name='versionperson',
+            old_name='alternative_names_new',
+            new_name='alternative_names',
+        ),
+    ]