On 11 Dec 2008, at 03:40, I. E. Smith-Heisters wrote:
> > Hi all, > > I have a model (Foo) with a has_many association to another model > (Bar). Each Bar backreferences Foo, and calls a method on Foo that is > expensive to call the first time per-instance (Foo#pricey). If all the > instances of Bar referenced the same instance of Foo, the cost of > calling Foo#pricey would only have to be paid once. Alas, this is not > so: > >>> foo = Foo.find :first >>> foo.object_id > => 70169390687560 >>> foo.bars[0].foo.object_id > => 70169406714940 >>> foo.bars[1].foo.object_id > => 70169407605180 > > I haven't looked into the problem too much, since I thought this was > perhaps a simple, common problem for which solution patterns already > exist. Are there? Alternatively, can you recommend a good starting > point for developing a pattern? > There's certainly not an established solution to this, but there are various experiments such as http://github.com/h-lame/parental_control/tree/master Fred --~--~---------~--~----~------------~-------~--~----~ 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 [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-talk?hl=en -~----------~----~----~----~------~----~------~--~---
