Recently I switched on a project with lots of legacy code. It was on Rails 2, Rails 3 and now I’ve updated it to Rails 4.1. You can’t even imagine how much rubbish I got rid of. But the thing I’d like to share with you today is QueryTrail. This simple...

There is much to be said about Rails autoloading and particularly about ActiveSupport::Dependencies (AS::D for short). What does it do? As the title says it loads constants automatically and reloads your code catching changes on every request. Ok,...

This article has started as my own research on a slightly different theme — Rails autoloading, but I couldn’t describe it without saying a single word about Ruby itself. In this topic we’ll talk about how Ruby loads and requires modules, constant name...