DesignPremium EpisodesS1 Premium Episode #031: Observer Variations Avdi Grimm December 3, 2012 One Comment Today we revisit episode 21, and try out several different takes on registering observer callbacks inline. This page is just for members. Sign in or subscribe to gain access! Username Password * Remember Me Forgot Password Related CategoriesDesign, Premium Episodes, S1 PremiumTagsoop, patterns, rails