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Touch and Cache
Rails 2.3.3 brings us a new feature called "touch". See how to use this to auto-expire associated caches in this episode.
(6 minutes)
Feed Parsing
Learn two different techniques for parsing an RSS feed using Feedzirra in this episode!
(10 minutes)
More on Virtual Attributes
Use a virtual attribute to implement a simple tagging feature. In this episode I show you how to assign virtual attributes through a callback instead of a setter method.
(7 minutes)
jQuery
How do you use jQuery with Rails? In this episode I redo episode #43 using jQuery instead of Prototype/RJS.
(9 minutes)
Factories not Fixtures
Fixtures are external dependencies which can make tests brittle and difficult to read. In this episode I show a better alternative using factories to generate the needed records.
(12 minutes)
Edit Multiple
Use checkboxes to select multiple records and edit them all in one form as shown in this episode. With virtual attributes you can even edit values relatively!
(14 minutes)
Integrating Active Merchant
In this episode I show how to add Active Merchant's functionality to a Rails application to make a fully-functional checkout process.
(18 minutes)
Metric Fu
Metric Fu is a compilation of several tools to help find areas of code that could be improved. In this episode I show you how to setup this tool on the railscasts.com source code.
(9 minutes)
More on Cucumber
There is a lot more to Cucumber than I showed in an earlier episode. See how to refactor complex scenarios in this episode.
(18 minutes)
Three Profiling Tools
Ever want to know what Rails is doing under the hood during a request? In this episode I show three different profiling tools: New Relic RPM, FiveRuns TuneUp, and Rack::Bug.
(7 minutes)