category: Ruby requires: sdesc: "Ruby SQL AST extension" ldesc: "Arel is a SQL AST manager for Ruby. It 1. Simplifies the generation of complex SQL queries 2. Adapts to various RDBMS systems It is intended to be a framework framework; that is, you can build your own ORM with it, focusing on innovative object and collection modeling as opposed to database compatibility and query generation." external-source: ruby-arel