querying a array in django

Question

      idarr = [1,2,3,4,5]
      for i in  range(len(idarr)):
          upload.objects.filter(idarr[i])

Cant we pass the idarr at one shot to the query

Answer 1

I am assuming that you are trying to filter all instances of Upload whose id is in the list idarr. If that is the case then you can go about it like this:

Upload.objects.filter(id__in = idarr)

Read the documentation for more details.

Answer 2

So much wrong in so few lines...

1. In Python, never loop through range(len(whatever)). Just do for i in whatever.

2. Assuming upload is a Django model, you can't just pass a value to filter - you need to say what you're filtering against. Presumably it's the primary key, so you want .filter(pk=i).

3. If you want to filter against any of the values in a list, use __in: .filter(pk__in=idarr).