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Activity Feed from Scratch
Episode #407Feb 14, 2013101 comments

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)
Dynamic Forms
Episode #403Jan 27, 2013120 comments

Dynamic Forms

Learn how to add fields to a form dynamically using another form, complete with custom field types. It's fieldception! (14 minutes)
ActionController::Live
Episode #401Jan 19, 2013121 comments

ActionController::Live

Server-sent events allow you to trigger events on the browser from a persistent connection to the server. This requires Rails stream data which can be done through ActionController::Live, a feature upcoming in Rails 4. (14 minutes)
Rubber and Amazon EC2
Episode #347May 03, 2012199 comments

Rubber and Amazon EC2

Deploying to Amazon EC2 allows you to scale an application quickly. Learn how to use Rubber to deploy to the cloud with just a few commands and monitor the cluster with various web tools. (17 minutes)
Model Name in URL (revised)
Episode #63Dec 16, 201285 comments

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)
Nested Resources
Episode #139Dec 08, 200866 comments

Nested Resources

In this episode I show how to nest resources through routing and go into some new additions in Rails 2.2. (10 minutes)
Polling for Changes (revised)
Episode #229Jan 14, 201392 comments

Polling for Changes (revised)

Polling may not be as common today as pushing changes over an open socket, however it is still an effective, simple solution if you do not need instantaneous updates. (10 minutes)
Service Objects
Episode #398Dec 18, 2012114 comments

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)
Authorization from Scratch Part 2
Episode #386Oct 11, 201297 comments

Authorization from Scratch Part 2

This finishes the series on building authorization from scratch by refactoring the permission logic into a DSL, restricting authorization with attributes, and combining with strong_parameters to protect params. (20 minutes)
Token Fields (revised)
Episode #258May 05, 2012158 comments

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)