Your after_commit callbacks will not know about changes, as Rails discards them when committing. The linked article shows a...
This blew my mind today: 12 Little-Known CSS Facts 12 Little-Known CSS Facts (The Sequel) Please make sure...
Sometimes you need to run background jobs that you can't make important guarantees about - they may run out of...
Large projects usually have large test suites that can run for a long time. This can be annoying as running...
As developers we are dealing with many tasks every week. We need a system to organize ourselves. Goals After completing...
Learn Enough Command Line to be Dangerous (it's in our library => Google Drive) CLI tricks every developer should...
Action Mailer Basics and Previews Chapter "Task H1: Sending Confirmation Emails" from Agile Web Development with Rails (in our...
Learn to treat files as an ActiveRecord attribute type, like :string or :integer Research Look at the README for...
In this card we will learn to write code that scales with a large number of database records. We will...
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...
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...
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...
In my RubyMine I have recorded two macros for debugging and linked them to some keyboard shortcuts. Since I believe...
When working with ActiveType you will often find it useful to cast an ActiveRecord instance to its extended ActiveType::Record...
Note: ActiveRecord::Base#becomes has a lot of quirks and inconsistent behavior. You probably want to use ActiveType.cast instead.
There is no such thing as a "default order" of rows in database tables. For instance, when you paginate a...
HTTP/2 will make our applications faster, simpler, and more robust—a rare combination—by allowing us to undo many of...
ActiveModel supplies an errors object that behaves similar to a Hash. It can be used to add errors to a...
All major browsers (IE8+, FF3.5+, Safari 4+, any Chrome) support sessionStorage, a JavaScript storage object that survives page reloads and...
sslscan is a nice tool to show details about TLS/SSL connections: ~> sslscan some-host-at.makandra.de Testing SSL server some-host-at.makandra.de on port 443...