[#3688] Add a objecttypes_service field, add tests

src/openforms/registrations/contrib/objects_api/migrations/0010_objectsapiconfig_objecttypes_service.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.2.23 on 2024-01-31 14:16
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("zgw_consumers", "0019_alter_service_uuid"),
+        (
+            "registrations_objects_api",
+            "0009_objectsapiconfig_payment_status_update_json",
+        ),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="objectsapiconfig",
+            name="objecttypes_service",
+            field=models.OneToOneField(
+                limit_choices_to={"api_type": "orc"},
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="+",
+                to="zgw_consumers.service",
+                verbose_name="Objecttypes API",
+            ),
+        ),
+    ]

src/openforms/registrations/contrib/objects_api/models.py

@@ -1,7 +1,9 @@
+from django.core.exceptions import ValidationError
 from django.db import models
 from django.template.loader import render_to_string
 from django.utils.translation import gettext_lazy as _
 
+from furl import furl
 from solo.models import SingletonModel
 from zgw_consumers.constants import APITypes
 
@@ -34,6 +36,14 @@ class ObjectsAPIConfig(SingletonModel):
         null=True,
         related_name="+",
     )
+    objecttypes_service = models.OneToOneField(
+        "zgw_consumers.Service",
+        verbose_name=_("Objecttypes API"),
+        on_delete=models.PROTECT,
+        limit_choices_to={"api_type": APITypes.orc},
+        null=True,
+        related_name="+",
+    )
     drc_service = models.OneToOneField(
         "zgw_consumers.Service",
         verbose_name=_("Documenten API"),
@@ -143,6 +153,24 @@ class ObjectsAPIConfig(SingletonModel):
     class Meta:
         verbose_name = _("Objects API configuration")
 
+    def clean(self) -> None:
+        super().clean()
+
+        if (
+            self.objecttypes_service
+            and self.objecttype
+            and not furl(self.objecttype).host
+            == furl(self.objects_service.api_root).host
+        ):
+            raise ValidationError(
+                {
+                    "objecttype": _(
+                        "The provided Objecttype is not part of the configured Objecttypes API."
+                    )
+                },
+                code="invalid",
+            )
+
     def apply_defaults_to(self, options):
         options.setdefault("objecttype", self.objecttype)
         options.setdefault("objecttype_version", self.objecttype_version)

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

@@ -0,0 +1,36 @@
+from django.core.exceptions import ValidationError
+from django.test import TestCase
+
+from zgw_consumers.constants import APITypes
+
+from zgw_consumers_ext.tests.factories import ServiceFactory
+
+from ..models import ObjectsAPIConfig
+
+
+class ObjectsAPIConfigTests(TestCase):
+
+    def test_invalid_objecttypes_url(self):
+        config = ObjectsAPIConfig(
+            objecttypes_service=ServiceFactory.build(
+                api_root="https://objecttypen.nl/api/v1/",
+                api_type=APITypes.orc,
+            ),
+            objecttype="https://example.com/api/dummy/",
+        )
+
+        self.assertRaises(ValidationError, config.clean)
+
+    def test_valid_objecttypes_url(self):
+        config = ObjectsAPIConfig(
+            objecttypes_service=ServiceFactory.build(
+                api_root="https://objecttypen.nl/api/v1/",
+                api_type=APITypes.orc,
+            ),
+            objecttype="https://objecttypen.nl/api/v1/objecttypes/1",
+        )
+
+        try:
+            config.clean()
+        except ValidationError as e:
+            self.fail(f"Unexpected exception : {e}")