High Performance PostgreSQL for Rails

Ruby and Rails Formatting Conventions

When Ruby or Ruby on Rails keywords are listed, they’ll match official documentation like “Ruby on Rails Guides.”^[49] Ruby on Rails layers like Active Record or Active Job use multiple words separated by a space.

Ruby methods in code samples generally start with a dot and are in lowercase with explicit parentheses. For example: .average. The dot, lowercase, and explicit parentheses help distinguish Ruby code from SQL functions or keywords. Note that this same format is used without regard for whether the method is a class or instance method.