Hi Pete, This list is for discussions about the core of Ruby on Rails, such as patches and bug fixes.
For general help please ask your question on the rubyonrails-talk mailing list. On 30 September 2010 00:03, Pete <[email protected]> wrote: > Hi, > > I am currently a little confused with trying to manipulate a named > scope that I currently have. > > I have two associated models e.g > > > Catalogue, > > > has_many :articles > > > Article: > > > belongs_to :catalogue > > > my named scope looks like this (in Class Article) > > > named scope :finished_articles, { :conditions => [ :finished => > true ] } > > > This works fine on it's own, but I need to trim it to show only the > most recent finished article per catalogue (based on created_at field) > - currently I may have many finished articles per catalogue, but want > to find the latest one. > > > I have tried to use two named scopes, the other looking like this: > > > named scope :limited, { :group => "catalogue_id" } > > > which does only leave one entry per catalogue, but rather than being > the most recent entry it is the first created. But I want to gather > the most recently created article - one from each > catalogue. > > > I just want to be able to reverse this order, but I can't seem to > figure out how to do this (I have a default order already set, but > this only seems to affect the scope after it has been rendered..) > Also > setting the order does not seem to have an effect on how the > instances > are gathered from the database. > > Thank you for any suggestions! > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Core" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<rubyonrails-core%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/rubyonrails-core?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" 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-core?hl=en.
