Unable to make a create mutation deeply nested with ManyToOnRel set

[NwawelAIroume]

Deeply nested create mutation is not working for the case where I have 3 models A, B, C.

The issue is in the field of Model B which is ManyToOneRel with Model C

Here is the use case:
Model A -> OneToOne Model B -> ManyToOneRel -> Model C

Model A => ProjectFinance
Model B => Transaction
Model C => TransactionLine

I get the error when making a deeply nested create mutation on Model A including nested Model B and Model C

But i get a successfull mutation when making deeply nested create mutation on Model B including Model C

here is the stack trace

File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry/extensions/base_extension.py", line 46, in resolve
return _next(root, info, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry_django_plus/directives.py", line 119, in resolve
return _next(root, info, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry/schema/schema_converter.py", line 564, in _resolver
return _get_result_with_extensions(_source, strawberry_info, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry/schema/schema_converter.py", line 538, in _get_result
return field.get_result(
^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry/field.py", line 178, in get_result
return self.base_resolver(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry/types/fields/resolver.py", line 187, in call
return self.wrapped_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/ast_mgr/backend/api/gql/mutations/init.py", line 1531, in projectfinance
return resolvers.create(info, ProjectFinance, resolvers.parse_input(info, data))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/contextlib.py", line 81, in inner
return func(*args, **kwds)
^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry_django_plus/mutations/resolvers.py", line 218, in create
return update(info, model(), data, full_clean=full_clean)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/contextlib.py", line 81, in inner
return func(*args, **kwds)
^^^^^^^^^^^^^^^^^^^
File "/home/iroume/prj/prj/venv/lib/python3.11/site-packages/strawberry_django_plus/mutations/resolvers.py", line 307, in update
value = field.related_model._default_manager.create(**value_data) # noqa: PLW2901

I think the issue is on the line

strawberry-django-plus/strawberry_django_plus/mutations/resolvers.py

Line 297 in 5e6b605

value = field.related_model._default_manager.create(**value_data) # noqa: PLW2901

It should be a recursive call on create(...) instead of manager.create

[bellini666]

Hey @NwawelAIroume ,

Hrm, that is interesting.

Would you like to try to open a PR for that case? If you don't have the time for that, I'll try to take a look at that in the next weeks