On 20 May 2010 16:59, Sharagoz <[email protected]> wrote: > On May 20, 4:13 pm, Michael Pavling <[email protected]> wrote: >> You need to iterate over a's bs [1] collection, and return the related >> cs. > > I don't think that is necessary. It should be possible to get the data > in a single sql query. > @cs = C.all(:joins => {:b => :as}, :conditions => {'as.id = 1'})
If you don't have any info apart from a_id (in params, maybe), then yes, go query the DB in one hit. But if you already have your 'a' eager-loaded with all its related bs and cs, then there's not much sense in rebuilding a load of objects; you might as well just select them out of the collections you have in memory. Depends on your starting point. -- 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.
