context in nested serializers django rest framework

Question

If i have a nested serializer:

class ChildSerializer(ModelSerializer):
    class Meta:
        fields = (\'c_name\', )
        model = Child


class ParentSe         


        

Answer 1

If you can not change the nature of you child serializer, as in @Kirill Cherepanov and @Robin van Leeuwen answers, a light but not full-integrated solution would be to manually pass the context in __init__() function :

class ChildSerializer(CustomModelSerializer):
    class Meta:
        fields = ('c_name', )
        model = Child


class ParentSerializer(CustomModelSerializer):

    child = ChildSerializer(many=True, read_only=True)

    class Meta:
        model = Parent
        fields = ('p_name', 'child')

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        # We pass the "upper serializer" context to the "nested one"
        self.fields['child'].context.update(self.context)