+1 for a public API I've been using this :( http://gist.github.com/247472
On Wed, Dec 2, 2009 at 20:23, dasil003 <[email protected]> wrote: > Has there ever been discussion of adding a method to recalculate > counter cache values? > > This seems like it would be useful both for adding counter caches to > existing tables, and also for fixing things up when direct SQL > manipulations are used (performance reasons in my case). > > There are actually two parts to the problem. The simple part is that > the update_counters only supports incremental change, so doing a full > reset would require some awkward arithmetic. > > The more complex part is using the association reflections to > calculate the actual value automatically. Doing so would require the > participation of both the belongs_to reflection *and* the has_many > reflection, which I can see being a bit smelly given the fact that the > counter cache currently works without the need for has_many to be > declared at all. However I think it's utility might outweigh the > complexity... > > What do you guys think? > > -- > > 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.
