When to use Serializer”s create() and ModelViewset”s create() perform_create()

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I want to clarify the given documentation of django-rest-framework regarding the creation of a model object. So far I found that there are 3 approaches on how to handle such events.

1. The Serializer"s create() method. Here is the documentation

   class CommentSerializer(serializers.Serializer):
   
       def create(self, validated_data):
           return Comment.objects.create(**validated_data)
   

2. The ModelViewset create() method. Documentation

   class AccountViewSet(viewsets.ModelViewSet):
   
       queryset = Account.objects.all()
       serializer_class = AccountSerializer
       permission_classes = [IsAccountAdminOrReadOnly]
   

3. The ModelViewset perform_create() method. Documentation

   class SnippetViewSet(viewsets.ModelViewSet):
   
       def perform_create(self, serializer):
           serializer.save(owner=self.request.user)
   

These three approaches are important depending on your application environment. But when do we need to use each create() / perform_create() function? On the other hand, I found some accounts that two create methods were called for a single post request the modelviewset"s create() and serializer"s create().

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When to use Serializer"s create() and ModelViewset"s create() perform_create() __del__: Questions

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

from time import sleep
sleep(0.1) # Time in seconds

When to use Serializer"s create() and ModelViewset"s create() perform_create() __del__: Questions

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