I removed the group by clause but I got an error in mySQL development mode. This is the statement after modification @users = User.paginate :joins => :properties ,:select => 'users.*', :page => params[:page], :order => 'count(properties.id) DESC',:conditions => ['users.id != 1','users.id=properties.user_id']
this the error message i got misuse of aggregate: count(): SELECT users.* FROM "users" INNER JOIN "properties" ON properties.user_id = users.id WHERE (users.id != 1) ORDER BY count(properties.id) DESC LIMIT 10 OFFSET 0 On Aug 12, 9:16 am, Marnen Laibow-Koser <li...@ruby-forum.com> wrote: > Dave Aronson wrote: > > On Wed, Aug 11, 2010 at 22:40, Mohammed Alenazi <vb4...@gmail.com> > > wrote: > > >> properties.user_id = users.id WHERE (users.id != 1) GROUP BY > >> users.id,users.login,users.name ORDER BY count(properties.id) DESC > >> LIMIT 10 OFFSET 0): > > > I haven't run into this sort of thing, but from my general > > SQL/database knowledge, I'd guess that the grouping is causing the > > problem. > > > I assume users.id is unique. Is that correct? If so, then grouping > > on it (:group => 'users.id') is useless. > > It doesn't matter if it's unique. There's no aggregate function in this > query, so there's no point to a GROUP BY clause. Remove it. MySQL may > just be ignoring it; Postgres is quite correctly telling you that it > makes no sense for it to be there. > > -- > Marnen Laibow-Koserhttp://www.marnen.org > mar...@marnen.org > > Sent from my iPhone > -- > Posted viahttp://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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
