how to update in a single post multiple instances - django rest framework

Question

I have array objects:

const ordsend =[
    {
      order: 4,
      id: 1,
    },
    {
      order: 2,
      id: 2,
    }
]

where id is the primary key, That for axios I am sending this by the POST method:

this.axios.post('route-dispatchs/order/', this.ordsend)
   .then((response) => {
     console.log(success);
});

this seems right to me because through this filtering by the id and updating its respective order

class RouteDispatchViewSet(viewsets.ModelViewSet):
    queryset = RouteDispatch.objects.all()
    serializer_class = RouteDispatchSerializer

    @list_route(methods=['post'], url_path='order')
def order_dispatch(self, request):
    for data in request.data:
        self.queryset.filter(id=data['id']).update(order=data['order'])

    page = self.paginate_queryset(self.queryset)
    if page is not None:
        serializer = self.get_serializer(page, many=True)
        return self.get_paginated_response(serializer.data)
    serializer = self.get_serializer(self.queryset, many=True)
    return Response(serializer.data)

but unfortunately it shows me the following error:

AttributeError: 'list' object has no attribute 'items'

How can I do a multiple update in a single request?

error:

when I send only one :

this.ordsend[0]

and I remove the ** for ** updates perfectly.

I have described an alternative in this post: https://stackoverflow.com/a/59756993/7392069 — Greg Holst, Jan 15 '20 at 17:49

score 3 · Accepted Answer · edited Apr 08 '18 at 12:31

Assuming you have a request payload as below,

{'payload' :[
    {
        "order": 4,
        "id": 1,
    },
    {
        "order": 2,
        "id": 2,
    }
]}

then try to change your views as below,

class RouteDispatchViewSet(viewsets.ModelViewSet):
    queryset = RouteDispatch.objects.all()
    serializer_class = RouteDispatchSerializer

    @list_route(methods=['post'], url_path='order')
    def order_dispatch(self, request):
        for data in request.data['payload']:
            self.queryset.filter(id=data['id']).update(order=data['order'])

        page = self.paginate_queryset(self.queryset)
        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)
        serializer = self.get_serializer(self.queryset, many=True)
        return Response(serializer.data)

Refference : Queryset update django

Thank you very much but it does not work ... it shows me the following error: **AttributeError: 'list' object has no attribute 'items'** Update the question with your suggestion — Piero Pajares, Apr 06 '18 at 12:41

how to update in a single post multiple instances - django rest framework

1 Answers1