Manipulating queryset chunks in the view

[burakozdemir32]

On the template side it works nice and retrieves 10 items for every scroll down. However, the problem is that the query initialization time is too long. In the '_format_items()' function, all the items are iterated, not only chunks. I tried sending a part of the queryset to '_format_items()' function(queryset[x:y]) but then after the first page load on the template it didn't retrieve rest of the items on scroll down.

queryset = Items.objects.filter(
    user_id=1
)
formatted_items = self._format_items(queryset)
data = {'items': formatted_items}
if request.is_ajax():
    self.template_name = 'templates/items_list.html'

return render(request, self.template_name, data)

[shtalinberg]

I think problem in you _format_items function