Learn how to set up a one-to-many or many-to-many association which is entirely embedded into a single column through a string or bitmask.

A rails plugin to store a collection of boolean attributes in a single ActiveRecord column as a bit field.

The Juggernaut plugin for Ruby on Rails aims to revolutionize your Rails app by letting the server initiate a connection and push data to the client. In other words your app can have a real time connection to the server with the advantage of instant updates.

Are you still adding printf/puts calls and restarting your app to figure what went wrong

Store schema-less data in MySQL.

Another replacement for factories and fixtures that focuses on being DRY and making developers type as little as possible.

Using the Re library, that regular expression can be built incrementaly from smaller, easier to understand expressions.

MailStyle allows you to write the css for your html emails as you normally would, then writes the styles inline when you send your emails. It also makes sure that your image paths are absolute rather than relative.

Make a Ruby class or module extend itself.

this is a very cool lib,

Rails 2.3 has a ton of really nice functionality locked up in monolithic components. I’ve posted quite a bit about how we’ve opened up a lot of that functionality in ActionPack, making it easier to reuse the router, dispatcher, and individual parts of ActionController. ActiveModel is another way we’ve exposed useful functionality to you in Rails 3.

Generate syntax-highlighted slides from Markdown

An ActionMailer delivery method to save mails as files in a directory.

So you downloaded inaction_mailer, and you had a folder full of e-mails generated while writing your app?

Large scale server deploys using BitTorrent and the BitTornado library.

So here’s an overview of how things are going to work in Rails 3.

Easily show multiple, overlapping events across calendar days and rows.

The Ruby Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries. We also teach you culture. Testing is not just something we pay lip service to, but something we live. It is essential in your quest to learn and do great things in the language.

Ruby Ghostscript (RGhost) is a library for document developers wanting a quick and easy way to generate pdf files. It's optimized to work with larger documents.

Capybara sets up some tags for you to use in Cucumber. Often you’ll want to run only some scenarios with a driver that supports JavaScript, Capybara makes this easy: simply tag the scenario (or feature) with @javascript:

Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects. It's the tie to go along with jQuery's tux.