On Oct 5, 2:05 pm, Pito Salas <[email protected]> wrote:
> I have a simple one to many relation:
>
> class Precinct
>   has_many :districts
> ...
> end
>
> I would like to find all Precincts that have no districts in a finder.
> Is that possible?

You can do that with a left outer join (and then an isnull to filter
for rows with no districts)

Fred
>
> I also am using the searchlogic gem (very nice) but even with that I
> could not concoct a one liner to do what I want.
>
> Any ideas would be greatly appreciated!
>
> - PIto
> --
> Posted viahttp://www.ruby-forum.com/.

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