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Ransack
Ransack allows you to easily build complex search forms. It also helps in adding sortable links and building a dynamic advanced search page.
(10 minutes)
Wizard Forms with Wicked
Creating a wizard form can be tricky in Rails. Learn how Wicked can help by turning a controller into a series of multiple steps.
(11 minutes)
Passing Data to JavaScript
There are a variety of ways to pass variables from a Rails application to JavaScript. Here I show three techniques: a script tag, a data attribute, and the Gon gem.
(6 minutes)
Cropping Images (revised)
Allow users to interactively crop uploaded images using Jcrop and Carrierwave. Includes a live preview that shows the resulting image.
(11 minutes)
Playing with PJAX
PJAX allows you to quickly update a section of a page using AJAX with automatic pushState support. Here I show how to use both pjax_rails and rack-pjax gems.
(8 minutes)
Sharing Mustache Templates
Mustache is a simple, logic-less templating language which allows you to use the same template for both Ruby and JavaScript. See how to set it up with a custom template handler in this episode.
(17 minutes)
Messaging with Faye
Faye is a subscription/publishing server which makes it easy to do push notifications within a Rails app.
(13 minutes)
AJAX History and Bookmarks
Browser page history and bookmarks do not usually work with AJAX requests, but in this episode I show you how to remedy this problem using a simple jQuery plugin.
(11 minutes)
Client Side Validations
Showing validation errors inline as the user is filling out the form can lead to a better use experience. Learn how to do this using the Client Side Validations gem.
(8 minutes)
Calendars
If dates play an important role in your application, consider adding a date picker or calendar view as shown in this episode.
(9 minutes)