Latest Screencasts (page 3)

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.

The Ancestry gem works like a tree but also allows us to fetch deeply nested messages in a single query. It provides a method to arrange them after fetching.

  CoffeeScript is now going to be a default installation with Ruby on Rails. So, I installed CoffeeScript and NodeJS and have been playing with it for the last hour or so. Here are the basics you need to know to use CoffeeScript including functions, arrays, hashes (objects), control functions (if, else, unless) and loops. [...]

Are you testing your JavaScript? Learn how to add specs using Jasmine. This episode also covers jQuery integration with jasmine-jquery.

  Single Table Inheritance is a great way to handle related models that descend from the same class. The classic example is a Car class with Ford, Chevy, and Honda subclasses. This Ruby on Rails Tutorial provides an example and explains how Rails puts all of the information in the same database table and allows [...]

Faye is a subscription/publishing server which makes it easy to do push notifications within a Rails app.

The decent_exposure gem makes it convenient to share controller data with the view through methods instead of instance variables.

In preparing to show off SASS, I found the Compass system, which uses SASS and organizes your stylesheets in a unique way. In this tutorial, I walk you though installing compass, installing the 960 grid system, and organizing your SASS stylesheets in an intelligent way. One note, I couldn’t remember the URL for the 960 [...]

With the jQuery Tokeninput plugin it is easy to add an autocompleting list of entries for a many-to-many association.

In this screencast we'll create a URL shortener in Ruby with Sinatra. We're going to show you how to integrate ActiveRecord with a Sinatra application. You'll need this regular expression to follow along: /^\b((?:https?:\/\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))$/ What you'll learn How to integrate ActiveRecord in to Sinatra with sinatra-activerecord How to build a...