Git is our version control system. Goals Understand why we use git. Learn how to work with your local repository...
Rails is our web framework. Goals Be able to write a simple Rails application. Understand how Rails talks to the...
Understand why we test: Low defect rate without a QA department. Customer acceptance testing can concentrate on new features...
Learn to create test data effectively using factories. Decouple tests by having each test start with an empty database...
Basic validations Read the Rails Guide on ActiveRecord Validations. You should have an overview which kinds of validations are built...
JavaScript code can access and manipulate the browser's DOM tree. Using JavaScript we can add interactive behavior to our...
In this card we will learn to write code that scales with a large number of database records. We will...
Built-in matchers Get an overview of all the matchers that are built into RSpec. Play with some of...
Understand why we use pagination Exercises Create 7500 movies in MovieDB (hint: Doing it in a single transaction is...
Read the Rails Guide about Active Record migrations Understand why we never use models in migrations. Checkout the repository...
Learn to treat files as an ActiveRecord attribute type, like :string or :integer Research Look at the README for...
A common task in web applications is to add client-side JavaScript behavior to existing HTML elements.
Web security basics Einführung in die Web Security 🇩🇪 provides essentials for the topic of this card. Read following chapters:
Understand how nested attributes appear in the params. See how the Rails form helpers encode the names of nested...
Read (or re-read) the following chapters from our book Growing Rails Applications in Practice (it’s in our...
Resources RubyGuides: Mastering Ruby Regular Expressions Using regular expressions in JavaScript Testing regular expressions visually Regular Expressions: Quantifier modes...
We are using the BEM pattern ("Block, Element, Modifier") to structure our CSS in all new projects. We try to...
Understand how asynchronous JavaScript works: Read Henning's presentation about asynchronous Javascript (there's also a German video presentation...
Just like we use gems on the server, we use third party JavaScript libraries in the browser. These typically provide...
Method lookup Understand all the terms in How Ruby method lookup works, in particular: include extend singleton class
Your MovieDB gained traction and is now a popular tool among cineasts. This comes with a downside: You noticed a...
Exercise 1: XML On the start page of your Movie DB, show the title of a random movie that is...
Many of our clients can't or don't want to design their user interfaces. In the absence of a...
Resources Rails Guide: Internationalization API Guide to localizing a Rails application Locale-aware helpers in ActionView::Helpers::NumberHelper