Querying your database across associations can become a bottleneck in your Rails application. Julian Rubisch, our first guest author, explains why and suggests an efficient solution.| RoRvsWild
Some footguns and solutions for flaky tests due to precision of Time and order dependence.| stevenharman.net
Many Rails developers don't understand what causes ActiveRecord to actually execute a SQL query. Let's look at three common cases: misuse of the count method...| www.speedshop.co
Active Record Relation.| api.rubyonrails.org
Namespace| api.rubyonrails.org