django serealizer decending order

To serialize a Django queryset in descending order, you can pass the ordering parameter to the serializer's Meta class. For example:

from rest_framework import serializers
from myapp.models import MyModel

class MyModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = '__all__'
        ordering = ['-created_at']

In this example, we are specifying the created_at field to be ordered in descending order by adding a minus sign (-) before the field name. This will sort the queryset in descending order based on the created_at field.

When you use this serializer to serialize a queryset, the queryset will be sorted in descending order based on the specified field. For example:

queryset = MyModel.objects.all()
serializer = MyModelSerializer(queryset, many=True)
serialized_data = serializer.data

The serialized_data variable will contain the serialized data in descending order based on the created_at field.