Frederick Cheung wrote: > 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
Thanks... I am not sure how to express that as Precinct.find_..... can you say? -- pito -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
