When an exception is raised in development you get the full error along with the stack trace. In production, only a simple message is displayed. Learn why this is and how to customize the handling of exceptions.
In edge rails (soon to be Rails 2.0), the built-in pagination has been moved into a plugin: classic_pagination. I recommend jumping over to the will_paginate plugin as shown in this episode.
The best way to contribute to the Rails project is to submit a patch. This episode shows how to do exactly that. There's also a surprise at the end that you don't want to miss!
The Rails API docs are very useful but can be difficult to read. This episode will give some tips on reading the docs and mention a few alternative sites for accessing the API. Update: sorry about the broken movie, it should work now.
There are two different ways to set up a many-to-many association in Rails. In this episode you will see how to implement both ways along with some tips on choosing the right one for your project.
9 min
About RailsCasts (Mobile)
From the publisher's feed
Every other week you will be treated to a new, free RailsCasts episode featuring tips and tricks with Ruby on Rails, the popular web development framework. These screencasts are short and focus on one…
technique so you can quickly move on to applying it to your own project. The topics are geared toward the intermediate Rails developer, but beginners and experts will get something out of it as well. A Pro option is also available containing more screencasts each week. This version is for mobile devices which cannot support the full resolution version.