This QueryDict instance is immutable

Question

I have a Branch model with a foreign key to account (the owner of the branch):

class Branch(SafeDeleteModel):
    _safedelete_policy = SOFT_DELETE_CASCADE
           


        

Answer 1

Do Simple:

#views.py
from rest_framework import generics


class Login(generics.CreateAPIView):
    serializer_class = MySerializerClass
    def create(self, request, *args, **kwargs):
        request.data._mutable = True
        request.data['username'] = "example@mail.com"
        request.data._mutable = False

#serializes.py
from rest_framework import serializers


class MySerializerClass(serializers.Serializer):
    username = serializers.CharField(required=False)
    password = serializers.CharField(required=False)
    class Meta:
        fields = ('username', 'password')