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We use ad-blockers as well, you know. We gotta keep those servers running though. Did you know that we publish useful books and run friendly conferences — crafted for pros like yourself? E.g. our upcoming SmashingConf London, dedicated to all things web performance.


Ryan enjoys conceptualizing ideal implementations of products and then helping to make them happen. A backend dev, Ryan loves developing custom APIs almost as much as he loves writing tests. Other than that, he can usually be found daydreaming about powder days in the mountains or at a park futzing around with a frisbee, soccer ball, or book.

A Guide To Starting Your Own Rails Engine Gem

Since Rails 3 was released, developers have been writing Rails engines in a new clean style that can be packaged as RubyGems. A Rails engine is a prepackaged application that is able to be run or mounted within another Rails application. An engine can have its own models, views, controllers, generators and publicly served static files.

Now, unless you like writing a lot of code, this is great news, because it means you can write an engine once and use it over and over again. Let’s say you build a lot of websites for small businesses. A common requirement for such websites is a page listing all of the employees at a company and some basic information about them. This is a great candidate for a Rails engine gem because the functionality will change very little and can be abstracted to a common set of requirements.


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