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SimpleForm (revised)
Episode #234Mar 03, 201221 comments

SimpleForm (revised)

Easily generate complex forms with SimpleForm. Here I show how to convert bulky markup into a concise list of fields, customize it by passing options, and add error handling. (9 minutes)
Delayed Job (revised)
Episode #171Jan 07, 201223 comments

Delayed Job (revised)

Long requests should be moved into a background process, and Delayed Job is one of the easiest ways to do this because it works with an Active Record database. (8 minutes)
Cron in Ruby (revised)
Episode #164Dec 29, 201112 comments

Cron in Ruby (revised)

Cron is a common solution for recurring jobs, but it has a confusing syntax. In this episode I show you how to use Whenever to create cron jobs using Ruby. Some alternative scheduling solutions are also mentioned. (6 minutes)
Thinking Sphinx (revised)
Episode #120Dec 09, 201112 comments

Thinking Sphinx (revised)

Sphinx is a full-text search engine for use with MySQL or PostgreSQL. Learn how to add Thinking Sphinx by defining an index on your model and searching with various options. (10 minutes)
Cropping Images (revised)
Episode #182Dec 02, 201141 comments

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)
PDFs with Prawn (revised)
Episode #153Nov 03, 201151 comments

PDFs with Prawn (revised)

Prawn is an excellent Ruby library for generating PDF documents. Here you will learn how to add it to a Rails application through a separate PDF renderer class. (11 minutes)
Exception Notifications (revised)
Episode #104Oct 20, 201122 comments

Exception Notifications (revised)

Few things are worse than seeing a "Something went wrong" 500 error on your production application. Here I show how to be notified when this happens using exception_notification and mention several other alternatives. (6 minutes)
will_paginate (revised)
Episode #51Oct 06, 201117 comments

will_paginate (revised)

Almost every Rails application needs pagination, and will_paginate is a great way to go. Here I show you how to set it up, customize the way it looks, and see how it compares with Kaminari. (6 minutes)