Can I sort a related model reference in a template?

[Micah Carrick]

If I have a Product model which has a one-to-many relationship with ProductImage model...

I can get the images in the template using product.productimage_set.all, however, is there any way to sort that or will I instead have to query the product images in the view?

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[Shawn Milochik]

You can put a sort order in the model's meta info. That way you'll always have a default sort.

[Micah Carrick]

Yeash. Don't know how I missed that. Thanks!

On Sat, Mar 12, 2011 at 5:27 AM, Shawn Milochik <sh...@milochik.com> wrote:

You can put a sort order in the model's meta info. That way you'll always have a default sort.

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[Tom Evans]

On Sat, Mar 12, 2011 at 1:27 PM, Shawn Milochik <sh...@milochik.com> wrote:
> You can put a sort order in the model's meta info. That way you'll always
> have a default sort.
>

If you do this, every query you execute returning that model will be
sorted. This can lead to serious performance issues if sorting is only
required in certain scenarios - sorting is never free.

Cheers

Tom