Showoff ARel

This presentation will initially be presented at the Rubyham Meetup in Birmingham, AL on December 1st 2010.

Table of Contents

1. Introduction
2. Intro to ARel
   1. What is ARel?
   2. Who Wrote ARel?
3. Exploring ARel
   1. ARel and SQL
   2. ARel is ASTified
   3. How does it work?
4. ARel in ActiveRecord
   1. ARel and ActiveRecord Versions
   2. How does ActiveRecord use ARel
   3. Comparing Conditions Hashes
5. Closing and Questions

Bibliography

• ARel
• MetaWhere
• MetaSearch
• MetaWhere Code
• MetaSearch Code
• Why ARel?
• ActiveRecord Query Interface 3.0
• Railscast #202 - ActiveRecord Queries in Rails 3
• Railscast #212 - Refactoring & Dynamic Delegator
• Railscast #215 - Advanced Queries in Rails 3
• Railscast #239 - ActiveRecord::Relation Walkthrough
• RailsGuides - ActiveRecord Query Interface
• RubyOnRails Screencast - ActiveRelation & ActiveModel
• InfoQ - Carl Lerche on Rails 3 and ARel
• AT&T Interactive - ARel Two Point Ohhhhh Yaaaaaa
• ActiveRecord::Relation vs ARel
• Ruby AST for fun and profit
• Ruby ASTs
• Abstract Syntax Tree
• Relational Algebra