Django two model inheritance one model? - django

Question

Given the following code:(don't mind the Fields there're just for illustration)
Models
class UserModel(AbstractBaseUser, PermissionsMixin):
email = models.EmailField(unique=True)
Fields
class CommonInfo(models.Model):
delete = models.BooleanField(default=False)
Fields
class MyModel(CommonInfo, UserModel):
my_name = models.CharField(max_length=50, blank=False, null=False)
Fields
Serializer
class MySerializer(views.APIView):
class Meta:
model = MyModel
fields = '__all__'
Views
class MyViewSet(viewsets.ModelViewSet):
queryset = MyModel.objects.all()
serializer_class = MySerializer
URLs
router.register(r'studio', MyViewSet, basename='studio')
This upside model, Serializer & Views use. I use in Django REST Framework. but when I call MyModel they give me an error.
Return the following error when API call:
init() takes 1 positional argument but 2 were given
Error stack
Internal Server Error: /studio/
Traceback (most recent call last):
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
response = get_response(request)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/viewsets.py", line 125, in view
return self.dispatch(request, *args, **kwargs)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/views.py", line 506, in dispatch
response = handler(request, *args, **kwargs)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/mixins.py", line 45, in list
serializer = self.get_serializer(queryset, many=True)
File "/home/chetan/Workspace/PhotoLab/PhotoLab/venv/lib/python3.8/site-packages/rest_framework/generics.py", line 110, in get_serializer
return serializer_class(*args, **kwargs)
TypeError: __init__() takes 1 positional argument but 2 were given
[21/Mar/2021 13:15:33] "GET /studio/ HTTP/1.1" 500 99610

Answer 1

You are inheriting from APIView for you MySerializer class.
to fix that, inherit from ModelSerializer from Django rest framework serializers
from rest_framework import serializers
class MySerializer(serializers.ModelSerializer):
class Meta:
model = MyModel
fields = '__all__'
and everything should be resolved.