Action Mailer Basics and Previews Chapter "Task H1: Sending Mail" from Agile Web Development with Rails 7.2 (in our...

Learn to treat files as an ActiveRecord attribute type, like :string or :integer Research Look at the README for...

Understand what Memoization is and when it can be useful. Understand the @variable ||= computation pattern. Learn how to use...

In this card we will learn to write code that scales with a large number of database records. We will...

Understand why we use pagination Exercises Create 7500 movies in MovieDB (hint: Doing it in a single transaction is...

Learn to read and write Haml. Understand the different attributes syntaxes (curly braces vs. round parentheses) Exercises Convert MovieDB...

CSS (+ some Javascript) framework, implementing Google's material design for static web pages. Can be used for plain websites without...

In most of our applications, users have their first and last name stored in separate columns. However, specifying them separately...

Read the following chapters from The Pragmatic Programmer, anniversary edition (in our library): Chapter 1, Topic 3: Software Entropy...

JavaScript is a scripting language supported by all browsers. Browsers don't speak Ruby, so if we want to implement...

Understand at least the following CSS concepts: Classes Selecting elements for styling Basic styling (color, typography, spacing)

Understand why we test: Low defect rate without a QA department. Customer acceptance testing can concentrate on new features...

Rails is our web framework. Goals Be able to write a simple Rails application. Understand how Rails talks to the...

Git is our version control system. Goals Understand why we use git. Learn how to work with your local repository...

makandra is responsible for maintaining about 75 Ruby projects. These projects use a large number of different versions for Ruby...

Ruby is the programming language we use on the backend. Goals After finishing this lesson you should be able to...

Disabling auto-complete in login forms is probably a bad idea, since it encourages weak passwords. If you are still...

SmartUnderline is an open-source JavaScript library which uses clever tricks to draw underlines in a more beautiful and readable...

If you need to follow links, click buttons, etc. using Capybara inside an , you can do it like this:

In my RubyMine I have recorded two macros for debugging and linked them to some keyboard shortcuts. Since I believe...

Today I ran into this: Invalid gemspec in [/usr/local/rvm/gems/ruby-1.9.3-p194/specifications/ZenTest-4.9.3.gemspec]: Illformed requirement ["< 2.1, >= 1.8"]. You need a newer Rubygems version. Try...

Insanely detailled guide about controlling copy & paste behavior using web technology in 2015. Note that you can now trigger a...

Small web application where you can upload an image (PNG, JPEG, GIF) and generate a base64-encoded version of it...

Rails comes with grouped_collection_select that appears to be useful, but isn't. As an alternative, consider the flat...