See
http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#Grouping-and-counting.
On Friday, December 28, 2018 at 6:46:25 AM UTC-5, Jonsubs wrote:
>
> Hi all,
> I'd like to know how to access the ".count()" result of a query from a
> view.
>
> I have the following query in the controller:
>
> rows =
> db(db.probdata).select(db.probdata.game,db.probdata.game.count(),groupby=db.probdata.game)
>
> And would like to show both the 'game' field and the number of entries for
> each game. I tried the code below, but it crashes:
>
> <ul>
> {{for r in rows:}}
>
> <li>{{=A(r.probdata.game,_href=URL('list_problems_by_game',args=r.probdata.game))}}
>
> {{=r.probdata.game.count()}}</li>
> {{pass}}
> </ul>
>
> How should I access the result of the ".count()" part of the query from
> the view?
> Thanks, Jon.
>
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