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Mongoid (revised)
Mongoid is a Ruby gem for interacting with MongoDB. Here I show the basics of setting up an app, querying for records, adding embedded associations, overriding the id, and more.
(9 minutes)
Rails Modularity
Rails is a modular framework allowing you to include only what you need. Here I show how the smallest Rails app works, and then I take a look at how to whittle down a full Rails application stack.
(13 minutes)
Globalize3
Rails has great internationalization (I18n) support making it easy to translate static text into other languages, but how do we translate database content? Learn how using Globalize 3 in this episode.
(5 minutes)
Hackers Love Mass Assignment (revised)
One of the most common security issues in a Rails application is the mass-assignment vulnerability which allows a user to set any attribute on the model. Learn how to prevent it in this episode.
(6 minutes)
ActiveAttr
ActiveAttr provides what Active Model left out. If you need to create a table-less model with features similar to Active Record, watch this episode.
(5 minutes)
Mongoid
Mongoid is a polished, high-level Ruby gem for accessing MongoDB. Here I cover installation, adding fields, validations, associations, and keys.
(11 minutes)
Dynamic attr_accessible
It is important to use attr_accessible for security with mass assignment, but what if you need it to be dynamic based on user permissions? See how in this episode.
(9 minutes)
Active Model
In Rails 3 the non-database functionality of Active Record is extracted out into Active Model. This allows you to cleanly add validations and other features to tableless models.
(6 minutes)
MongoDB and MongoMapper
MongoDB is a document based database engine. Learn how to access it through MongoMapper in this episode.
(13 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)