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Model Name in URL (revised)
A model's ID in the URL is not very helpful to the user. Consider adding the name which can also improve SEO. Learn how to override to_param, add a slug attribute, and make a catch all route for deep nesting.
(9 minutes)
Activity Feed from Scratch
Creating an activity feed presents some interesting challenges. Here I share my thought process behind my implementation including when to use callbacks and a few tricks with partials.
(14 minutes)
Optimistic Locking (revised)
There is a chance one user will unintentionally override someone else's changes if they update a record near the same time. One solution is to use optimistic locking. The updated_at column can also be used for this as shown.
(8 minutes)
Rails 2.2 Extras
This episode finishes up the Rails 2.2 series by showing a few miscellaneous additions that I find useful.
(4 minutes)
Service Objects
Models can quickly become a grab-bag of unrelated methods if behavior is constantly being pushed from the controller. Here I show how to refactor this using Concerns and Service Objects.
(12 minutes)
Time Zones (revised)
Active Support makes it easy to work with time zones. Learn how to add a Time Zone select field to a user form and watch out for the gotchas.
(7 minutes)
Authentication with Warden
Warden makes it easy to move authentication up into Rack middleware. This means authentication can be accessed outside of a Rails controller such as in routes or in a mountable engine.
(12 minutes)
Token Fields (revised)
The Chosen plugin makes it easy to turn a many-to-many select menu into a searchable token field. Then see how the jQuery Tokeninput field can help with AJAX loading and creating new records.
(10 minutes)
Autocomplete Search Terms
Learn how to add autocompletion to a search form and improve performance using Rack middleware, caching and switching from SQL to Redis.
(17 minutes)
Guest User Record
Instead of presenting a sign up form to the user, consider creating a temporary guest record so the user can try out the application without filling in their information up front. They can then become a permanent member afterwards.
(9 minutes)