I’ve just encountered this problem yet again effecting code I’m working though, so I thought I’d quickly blog about it.
Put basically if you call count on a relationship it will always make a db call to see how many there are even if the relationship has been populated. If you use size or any? they [...]
About Nahum Wild
I'm a High Performance Website Consultant specialising in Ruby on Rails deployments. In this blog I cover common problems I've seen and provide insight on optimisation techniques.-
