Orcun Avsar wrote:
> hi,
> problem is that i want to order model instances for an attribute and
> slice it. then sort list randomly.
>
>>> query=order_by("date")[:20]
>>> query.order_by("?")
> returns an error because query set has been sliced
>
>
>>> query=order_by("date")[:100]
>>> random.shuffle(query)
> also returns error bacuse query set doesn't behave like a list and
> doesn't support item assignment.
>
> dirty solution was creating a list contains model instances by putting
> query in a for loop then shuffle it. is there any alternative solution.
A much cheaper solution would be to create a list of range(20),
randomize that with shuffle and use successive elements to index the slice.
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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