modified: netbox_services/engine/__init__.py

modified:   netbox_services/engine/allocators.py
modified:   netbox_services/engine/context.py
new file:   netbox_services/engine/mappers.py
modified:   netbox_services/engine/resolver.py
new file:   netbox_services/engine/templating.py
modified:   netbox_services/forms.py
modified:   netbox_services/models.py
modified:   netbox_services/tests/test_allocators.py
new file:   netbox_services/tests/test_mappers.py
modified:   netbox_services/tests/test_resolver.py
new file:   netbox_services/tests/test_templating.py
Simplify layout to template and service instances

netbox_services/tests/test_allocators.py

@@ -1,6 +1,10 @@
 import pytest
 
-from netbox_services.engine.allocators import FirstFreeIPAddressAllocator, SpecificAllocator
+from netbox_services.engine.allocators import (
+    CreateAllocator,
+    FirstFreeIPAddressAllocator,
+    SpecificAllocator,
+)
 
 
 @pytest.mark.django_db
@@ -41,3 +45,69 @@ class TestSpecificAllocator:
         allocator = SpecificAllocator({"strategy": "specific"})
         with pytest.raises(ValueError):
             allocator.allocate(Context(service=None))
+
+
+@pytest.mark.django_db
+class TestCreateAllocator:
+    def test_create_returns_unsaved_instance(self, db):
+        from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site
+        from netbox_services.engine.context import Context
+
+        mfr = Manufacturer.objects.create(name="alloc-mfr", slug="alloc-mfr")
+        dt = DeviceType.objects.create(manufacturer=mfr, model="alloc-model", slug="alloc-model")
+        role = DeviceRole.objects.create(name="alloc-role", slug="alloc-role")
+        site = Site.objects.create(name="alloc-site", slug="alloc-site")
+
+        allocator = CreateAllocator({
+            "strategy": "create",
+            "attrs": {
+                "name": "test-device",
+                "device_type": dt.pk,
+                "role": role.pk,
+                "site": site.pk,
+                "status": "active",
+            },
+        })
+        ctx = Context(service=None)
+        obj = allocator.allocate(ctx, model=Device)
+        assert obj.pk is None
+        assert obj.name == "test-device"
+        assert obj.device_type == dt
+        assert obj.role == role
+        assert obj.site == site
+        assert obj.status == "active"
+
+    def test_create_with_jinja2_attrs(self, db):
+        from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site
+        from tenancy.models import Tenant
+        from netbox_services.engine.context import Context
+
+        mfr = Manufacturer.objects.create(name="jinja-mfr", slug="jinja-mfr")
+        dt = DeviceType.objects.create(manufacturer=mfr, model="jinja-model", slug="jinja-model")
+        role = DeviceRole.objects.create(name="jinja-role", slug="jinja-role")
+        site = Site.objects.create(name="jinja-site", slug="jinja-site")
+        tenant = Tenant.objects.create(name="jinja-tenant", slug="jinja-tenant")
+
+        service = type("FakeService", (), {"tenant": tenant})()
+        parent = Device(name="parent-dev", device_type=dt, role=role, site=site)
+
+        allocator = CreateAllocator({
+            "strategy": "create",
+            "attrs": {
+                "name": "rtr-{{ service.tenant.slug }}-{{ index + 1 }}",
+                "device_type": dt.pk,
+                "role": role.pk,
+                "site": "{{ ..site.pk }}",
+                "status": "active",
+            },
+        })
+        ctx = Context(service=service, parent_object=parent)
+        obj = allocator.allocate(ctx, model=Device, index=0, ancestors=[parent])
+        assert obj.name == "rtr-jinja-tenant-1"
+        assert obj.site == site
+
+    def test_create_requires_model(self, db):
+        from netbox_services.engine.context import Context
+        allocator = CreateAllocator({"strategy": "create", "attrs": {}})
+        with pytest.raises(ValueError):
+            allocator.allocate(Context(service=None))