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Paperclip
Episode #134Nov 03, 2008158 comments

Paperclip

Need to add image attachments to a model? See how with paperclip in this episode. (7 minutes)
7 Security Tips
Episode #178Sep 07, 200964 comments

7 Security Tips

Security is important! Here I show seven different security flaws which are common to Rails applications ranging from mass assignment to CSRF protection. (14 minutes)
Beginning with Cucumber
Episode #155Mar 30, 2009107 comments

Beginning with Cucumber

Cucumber is a high-level testing framework. In this episode we will create a new Rails application from scratch using behavior driven development. (15 minutes)
Integrating Active Merchant
Episode #145Jan 19, 200991 comments

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)
Hacking ActiveRecord
Episode #62Jul 25, 200746 comments

Hacking ActiveRecord

Have you ever wanted to temporarily disable all validations? Well, ActiveRecord doesn't support this, but that doesn't mean we can't add it. This episode will show you how to open up an existing class and change its behavior. (11 minutes)
More on Virtual Attributes
Episode #167Jun 22, 200950 comments

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)
Webrat
Episode #156Apr 06, 200960 comments

Webrat

If you prefer writing integration tests in ruby instead of Cucumber's plain english, consider interacting with Webrat directly as I show in this episode. (7 minutes)
Active Merchant Basics
Episode #144Jan 12, 200969 comments

Active Merchant Basics

Active Merchant is a great library for handling credit card transactions. In this episode I will show you the basics of using it to communicate with PayPal's gateway. (10 minutes)
Beta Invitations
Episode #124Aug 25, 200880 comments

Beta Invitations

You know those invitation systems where a given user can invite a number of other people to join? That's what I show you how to make in this episode. (22 minutes)
PayPal Express Checkout
Episode #146Jan 26, 200961 comments

PayPal Express Checkout

PayPal Express Checkout is easy to add to an existing ordering system. See how in this episode. (15 minutes)