[#3688] Add migration to set required fields from global configuration

src/openforms/registrations/contrib/objects_api/migrations/0012_fill_required_fields.py

@@ -0,0 +1,54 @@
+# Generated by Django 3.2.24 on 2024-02-12 16:47
+
+from django.db import migrations
+from django.db.migrations.state import StateApps
+from django.db.backends.base.schema import BaseDatabaseSchemaEditor
+
+from openforms.registrations.contrib.objects_api.plugin import (
+    PLUGIN_IDENTIFIER as OBJECTS_API_PLUGIN_IDENTIFIER,
+)
+
+
+def fill_objects_api_registration_backend_required_fields(
+    apps: StateApps, schema_editor: BaseDatabaseSchemaEditor
+) -> None:
+    """Explicitly use the globally configured ProductAanvraag objecttype and version for forms relying on the default."""
+
+    ObjectsAPIConfig = apps.get_model("registrations_objects_api", "ObjectsAPIConfig")
+
+    try:
+        objects_api_config = ObjectsAPIConfig.objects.get()
+    except ObjectsAPIConfig.DoesNotExist:
+        return
+
+    objecttype_url = objects_api_config.objecttype
+    objecttype_version = objects_api_config.objecttype_version
+
+    if not (objecttype_url and objecttype_version):
+        return
+
+    FormRegistrationBackend = apps.get_model("forms", "FormRegistrationBackend")
+
+    for form_registration_backend in FormRegistrationBackend.objects.filter(
+        backend=OBJECTS_API_PLUGIN_IDENTIFIER
+    ).iterator():
+        form_registration_backend.options.setdefault("objecttype", objecttype_url)
+        form_registration_backend.options.setdefault(
+            "objecttype_version", objecttype_version
+        )
+        form_registration_backend.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("registrations_objects_api", "0011_create_objecttypesypes_service_from_url"),
+        ("forms", "0104_allow_invalid_input_datetime"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            fill_objects_api_registration_backend_required_fields,
+            migrations.RunPython.noop,
+        ),
+    ]

src/openforms/registrations/contrib/objects_api/tests/test_migrations.py

@@ -8,6 +8,46 @@
 from openforms.utils.tests.test_migrations import TestMigrations
 
 
+class SetRequiredObjectsAPIOptionsFields(TestMigrations):
+    app = "registrations_objects_api"
+    migrate_from = "0011_create_objecttypesypes_service_from_url"
+    migrate_to = "0012_fill_required_fields"
+
+    def setUpBeforeMigration(self, apps: StateApps):
+        ObjectsAPIConfig = apps.get_model(
+            "registrations_objects_api", "ObjectsAPIConfig"
+        )
+        ObjectsAPIConfig.objects.create(
+            objecttype="https://objecttypen.nl/path/api/v1/objecttypes/2c66dabf-a967-4057-9969-0700320d23a2",
+            objecttype_version=1,
+        )
+
+        Form = apps.get_model("forms", "Form")
+        form = Form.objects.create(name="test form")
+
+        FormRegistrationBackend = apps.get_model("forms", "FormRegistrationBackend")
+        FormRegistrationBackend.objects.create(
+            form=form,
+            key="dummy",
+            name="dummy",
+            backend=OBJECTS_API_PLUGIN_IDENTIFIER,
+            options={},
+        )
+
+    def test_migration_sets_required_fields(self):
+        FormRegistrationBackend = self.apps.get_model(
+            "forms", "FormRegistrationBackend"
+        )
+
+        form_registration_backend = FormRegistrationBackend.objects.first()
+
+        self.assertEqual(
+            form_registration_backend.options["objecttype"],
+            "https://objecttypen.nl/path/api/v1/objecttypes/2c66dabf-a967-4057-9969-0700320d23a2",
+        )
+        self.assertEqual(form_registration_backend.options["objecttype_version"], 1)
+
+
 class ObjecttypesServiceFromDefaultUrlMigrationTests(TestMigrations):
     app = "registrations_objects_api"
     migrate_from = "0010_objectsapiconfig_objecttypes_service"