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Hacking with Arel
Here I show a variety of ways to rewrite a long SQL query using only Active Record and Arel. This includes generating scopes dynamically, adding an "or" operator, and adding a powerful "match" method.
(15 minutes)
Facebook Graph API
Learn how to use the Facebook Graph API with the Koala gem to fetch data from Facebook and post content through a user. Here I delve into permissions, error handling, and more.
(14 minutes)
Extending Refinery CMS
Here I continue on Refinery and show how to add database-backed content by generating an engine. You will also learn how to override Refinery's views and controllers in this episode.
(14 minutes)
Rollout and Degrade
Learn how to use the Rollout gem to deploy a feature to a select group of users and the Degrade gem to automatically disable it upon failure. Also included is a way of doing this from scratch.
(13 minutes)
ElasticSearch Part 2
This final part on ElasticSearch and Tire will show how to make more complex search queries, customize the indexing, and add facets.
(16 minutes)
Running JavaScript in Ruby
Sometimes logic needs to be shared between the server-side (Ruby) and the client-side (JavaScript). Here I show how to run JavaScript directly in Ruby through ExecJS and therubyracer.
(14 minutes)