Latest Screencasts (page 7)

Quick Ruby Tip: The inject method is useful for aggregating data across a dataset. For example a summation could be done with inject (by aggregating each number into the sum.)

HAML and ERB are two commonly used ruby templating languages. You may have a strong preference for one or the other, but it’s not always up to you which one you use. I was recently asked to convert several HAML files to ERB format. In this episode, I will demonstrate a couple of Vim macros that helped make short work of the task.

The second part of the tutorial for building a blog with Ruby on Rails version 3. We demonstrate how to set up some basic routes, manage the controller and views, and create a basic form for creating posts.

Generating PDFs in plain Ruby can be a lot of work. Instead, consider generating PDFs from HTML using PDFKit.

Every good project needs a good setup. In this episode, I set up a github repo, create a new rails application, hook in Cucumber and Rspec, write a Cucumber feature, and write the code to make it pass.

In Rails 3 the non-database functionality of Active Record is extracted out into Active Model. This allows you to cleanly add validations and other features to tableless models.

Gregg Pollack of Envy Labs introduces Ruby on Rails 3 By rails3 Tags : 3, on, rails, ruby

Gregg Pollack introduces Rails 3 and Action Dispatch By rails3

Rails 3 ships with Bundler, a Ruby library that makes DependencyManagement a painless process. In this video we learn Bundlerbasics and take a look at the new Action Mailer syntax. By rails3 Tags : on, rails, ruby

Active Relation gives you a more powerful syntax for pulling datainto your application. We'll learn about the new syntax anddiscover how to leverage Active Model to enhance our plain old Rubyobjects. By rails3 Tags : 3, ActiveModel, ActiveRelation, Rails, Rails3, Ruby on Rails, active, model, rails, relation