Loading multiple Ruby Gems can result in runtime errors when an incompatible version of a gem dependency is already loaded as a dependency of another gem.
Gem bundler can also pre-load and cache gems for faster loading.
Having two gems that require different versions of the same dependency can sometimes cause runtime errors. Yehuda Katz and Carl Lerche have created an elegant solution in the Gem Bundler. Download 108.8 MB Download (iphone & ipod) 48.8 MB
Have you ever wished you could start out your Rails application with all of your gems installed and all of your standard setup items completed? Well, wait no longer. You can now do it with Rails Templates. Pratik covered it pretty well, so I’m not going to repeat what he’s done. Rather, I’m going to share a template of my own and explain why I included what I did.
Learn how to save data such as bank information, social security number, or other sensitive information in your Rails application securely by encrypting the data. By using spikex’s gem Strongbox, you can use private and public keys to secure your data in your database to where you must have the password to decrypt them. Download 107.9 MB Download (iphone & ipod) 34.6 MB
In this series, I attempt to recreate a twitter style application called ‘Flitter’. In this installment, I show you how to create an authenticated system easily using existing tools. I also show how to generate test data to simulate an active application. Finally, you will learn how to set up self-referencial associations. Download 280 MB Download (iphone & ipod) 86 MB