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Foreman
Foreman can help manage multiple processes that your Rails app depends upon when running in development. It also provides an export command to move them into production.
(4 minutes)
Testing Time & Web Requests
It can be difficult to test code that deals with the current time or an external web request. Here I show you how to do both using the Timecop and FakeWeb gems.
(8 minutes)
Sass Basics
Sass extends CSS with variables, nesting, mixins and more. Here I show how to convert plain CSS to SCSS in a Rails 3.1 app.
(13 minutes)
Nested Model Form Part 2
Add and remove nested model fields dynamically through JavaScript using either Prototype or jQuery.
(12 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)
Search, Sort, Paginate with AJAX
Many administration pages have search, sorting, and pagination on the index page. See how to add all of this including AJAX.
(13 minutes)
Pagination with Kaminari
If you need pagination in Rails 3 try out Kaminari. It is a clean, flexible solution which uses scopes to flow nicely with Active Record queries. Did I mention it also works with Mongoid?
(8 minutes)
HTTP Streaming
HTTP Streaming allows the browser to start processing the HTML response while the Rails app is still processing the rest of the request.
(9 minutes)
Guard
Guard watches files and runs a command after a file is modified. This allows you to automatically run tests in the background, restart your development server, reload the browser, and more.
(8 minutes)
Template Inheritance
In Rails 3.1 the controller inheritance also applies to the view layer. Here I show how to add an application template which is shared by all views, and a lookup path for overriding templates based on the subdomain.
(8 minutes)