On Sat, May 30, 2009 at 10:38 AM, Jonathan Rochkind < rails-mailing-l...@andreas-s.net> wrote:
> > Conrad Taylor wrote: > > An Array instance can respond to both count and size methods. If you > > use > > size the method with a counter > > cache column on the has_many side, you can cache the total. > > You can't possibly mean an Array, because an Array doesn't know anything > about going to databases or cacheing. An Array is just a list of stuff. > > You might mean an ActiveRecord Association collection object, which > behaves a lot like an array, but also has some 'magic' ActiveRecord > behavior on it. > > The fact that, as far as I know, there's no actual class name for this > AR association magic collection object, makes things rather confusing, I > agree. I think it's just some proxy methods singleton-added to an Array, > leaving us without a good name to call what it is, making things > confusing. Or if it really is a class, I don't know what it's called > cause it's not mentioned in the docs. This is a kind of a-bit-too-clever > ruby hacking that Rails, IMHO, uses sometimes when it doesn't really > have to, making things somewhat more confusing than they need to be. In regards to a counter cache column, I'm referring to an ActiveRecord::Base association as I indicated in my example. -Conrad > > -- > 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 rubyonrails-talk@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 -~----------~----~----~----~------~----~------~--~---
