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rails
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ActiveAdmin Cheat Sheet
A quick reference guide for ActiveAdmin in Ruby on Rails, covering listing scopes, sidebar filters, custom actions, table columns, and view helpers.
Arel SQL AST Manager for Ruby on Rails Cheat Sheet
A quick reference guide for Arel, the SQL Abstract Syntax Tree manager powering ActiveRecord in Ruby on Rails: tables, projections, complex joins, and query composition.
Devise Authentication for Ruby on Rails Cheat Sheet
A quick reference guide for Devise in Ruby on Rails: generators, model modules, controller helpers, view customization, migrations, and scoped routing.
Vim-Rails Cheatsheet
A quick reference guide for tpope/vim-rails plugin: alternate and related file navigation, file extraction, abbreviations, and Rails project jump commands.