Would the built-in lock_version magic column be good enough for a fragment_key?
On Oct 2, 1:09 pm, Philip Hallstrom <phi...@pjkh.com> wrote: > > Right now, I have the :action_suffix for a fragment I cache such > > that I > > can find it when I need to delete it from the cache. But an episode > > on > > Rails Casts gave the idea that another approach is to not worry about > > deleting the old fragments. They will eventually just get pushed > > out of > > the cache. Instead, just make sure that the name is unique to the > > version of the object(s) for which the fragment renders. > > > So, the suggestion was to make the :action_suffix tied to the last > > update field or an equivalent field. > > > Can anyone comment on this strategy? It seems much easier to me. It > > somewhat solves the problem of trying to kill the old cache entries > > with > > all the ugly sweeper logic. > > Seems reasonable. As long as you're sure your cache will expire the > old entries and not keep piling them up until you run out of ram/disk > space. > > I would consider adding a generic method to all your models named say > "fragment_key" that does whatever is necessary to generate a unique > key. That way in your controllers/views you never have to think what > fields to put in there to get the right version. It's always just > @instance.fragment_key. And you can hash that if you want to shorten > it down and avoid any key length issues or invalid characters, etc. > > You might also find this > interesting...http://blog.plataformatec.com.br/2009/09/how-to-avoid-dog-pile-effect... > > -philip --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
