Extend DjangoNode to be used in Django Restframework ModelSerializers

[contra-bit]

Dear Devs, I am working on building full support for django rest framework. This includes a README over 1000 Lines with full examples on how to build a self documenting rest api specified with OpenAPI 3.0

Problem

Everything works perfect expect for the edge case that the parameters for POST request are separated with hyphen instead of underscores. Everything brakes if properties of a node are in hyphen case (test-name) instead of (test_name)

What i have tried

I have tried a few different approaches.

• Using DjangoNode instead of structured Node According to drf you can then pass extra agrs, where the conversion happens. sadly because Django Node is not functionally equivalent to django.model this brakes

  
  Traceback (most recent call last):
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner
  response = get_response(request)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/core/handlers/base.py", line 181, in _get_response
  response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
  return view_func(*args, **kwargs)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/viewsets.py", line 125, in view
  return self.dispatch(request, *args, **kwargs)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 509, in dispatch
  response = self.handle_exception(exc)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 469, in handle_exception
  self.raise_uncaught_exception(exc)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
  raise exc
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 506, in dispatch
  response = handler(request, *args, **kwargs)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/mixins.py", line 18, in create
  serializer.is_valid(raise_exception=True)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 220, in is_valid
  self._validated_data = self.run_validation(self.initial_data)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 419, in run_validation
  value = self.to_internal_value(data)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 472, in to_internal_value
  for field in fields:
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 355, in _writable_fields
  for field in self.fields.values():
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
  res = instance.__dict__[self.name] = self.func(instance)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 349, in fields
  for key, value in self.get_fields().items():
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 1028, in get_fields
  info = model_meta.get_field_info(model)
  File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/utils/model_meta.py", line 35, in get_field_info
  opts = model._meta.concrete_model._meta
  AttributeError: 'NoneType' object has no attribute '_meta'
  [15/Jan/2021 23:06:42] "POST /mud/ HTTP/1.1" 500 20683

- Patching [djangorestframework-camel-case ](https://github.com/contra-bit/djangorestframework-camel-case)so it parses underscores from hyphens (result)

Traceback (most recent call last): File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner response = get_response(request) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/core/handlers/base.py", line 181, in _get_response response = wrapped_callback(request, *callback_args, callback_kwargs) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view return view_func(*args, *kwargs) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/viewsets.py", line 125, in view return self.dispatch(request, args, kwargs) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 509, in dispatch response = self.handle_exception(exc) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 469, in handle_exception self.raise_uncaught_exception(exc) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception raise exc File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/views.py", line 506, in dispatch response = handler(request, *args, **kwargs) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/mixins.py", line 19, in create self.perform_create(serializer) File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/mixins.py", line 24, in perform_create serializer.save() File "/home/s0/Code/Learn/Neo4JProjects/neo4things/env/lib/python3.9/site-packages/rest_framework/serializers.py", line 205, in save self.instance = self.create(validated_data)

The issue here is that the conversion happens correctly but then i think python is confussed because there is a minus and property name is now an expression

I think the easiest would be to make DjangoNode work in the rest framework. What do you think. Any Ideas how I can get this to work?

If you are interested in my project write me, its going to be published under agpl soon

[contra-bit]

My intuition tells me, that DjangoFields needs the function get_field info or simmilar

[whatSocks]

Hello @contra-bit this is interesting, we will check.