Django rest framework serializer.save() return “Invalid data. Expected a dictionary, but got group”

[Gary Ng]

There is a route /group/task, every time it is called, the log will be generated.

This is views.py

class GroupViewSet(viewsets.ViewSet):
        ....
        @detail_route(methods=['post'], url_path='task')
        def get_task(self, request, pk=None):
                group = get_object_or_404(Group, pk=pk)
                #group = ServerSerializer(group) <--- tried but not work

                data = {
                    "group": group,
                    #"group": group.data, <--- tried but not work
                }
                log_serializer = LogSerializer(data=data)
        if log_serializer.is_valid(raise_exception=True):
            log_serializer.save()

This is serializer.py

class GroupSerializer(serializers.ModelSerializer):
class Meta:
    model = Group
    fields = ('id', 'name')

class LogSerializer(serializers.ModelSerializer):
    group = GroupSerializer()
    class Meta:
        model = Log
        fields = ('group', 'created')

The post responese:

{
    "group": {
        "non_field_errors": [
            "Invalid data. Expected a dictionary, but got group."
        ]
    }
}

[Chris Foresman]

It might help to see how your models are arranged, but are you trying to _create_ a new Log that has a specific group attached to it? Because the serializer you've defined doesn't handle that case, I don't think. But, try this:

data = {

   "group": {

       "id": group.pk,

       "name": group.name,

   },

   # other relavant fields here

}