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Filtering the Django model to get the last index
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Filtering the Django model to get the last index
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Is it possible to filter Django model to get the last index.
Here is my view
order = Order.objects.reverse("order_number")[-1]
But it gets the first index.
The subscript [-1] selects the last item in a list or tuple and, given that the query set was reversed, this would be the first item, not the last. You could try:
order = Order.objects.reverse("order_number")[0]
but you can't pass a sort key to reverse() so this code would fail. If you have a default sorting order set up for the table you can just do this:
order = Order.objects.last()
It might be better to use an explicit order_by():
order = Order.objects.order_by("order_number").last()
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