There is no single place to look up documentation for our stack. This card includes some hints where you can...

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

Learn to create test data effectively using factories. Decouple tests by having each test start with an empty database...

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

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When your code does not behave as expected, you can use a debugger statement ("breakpoint") at any point in your...

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Built-in matchers Get an overview of all the matchers that are built into RSpec. Play with some of...

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makandra's development process Learn about our process. The squares represent the state of the issue in Linear:

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

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

Advanced cucumber features Learn about the following cucumber features: Doc Strings ("multiline strings") Tables Tags Before/after hooks Background Scenario outlines...

We use Selenium WebDriver integrated with Cucumber/Capybara for full-stack integration testing. Try and use it Your forked MovieDB should...

Web security basics Einführung in die Web Security 🇩🇪 provides essentials for the topic of this card. Read following chapters:

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Authentication is all about being able to verify the identity of a user in the context of our application.

Resources RubyGuides: Mastering Ruby Regular Expressions Using regular expressions in JavaScript Testing regular expressions visually Regular Expressions: Quantifier modes...

While working on a Rails application, your code base will grow a collection of different file types including: Ruby (business...

Just like we use gems on the server, we use third party JavaScript libraries in the browser. These typically provide...

Rubymonk training Read the following Rubymonk articles: Ruby Primer: Ascent (archived copy) Metaprogramming Ruby (archived copy) Metaprogramming Ruby: Ascent (archived...

Method lookup Understand all the terms in How Ruby method lookup works, in particular: include extend singleton class

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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...

Adopting legacy Rails apps Talk to your mentor about how we're approaching applications that are either old or abandoned...

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Goal of this lesson is to understand what middlewares in Rack are good for. Rack Start with these articles:

Resources Rails Guide: Internationalization API Guide to localizing a Rails application Locale-aware helpers in ActionView::Helpers::NumberHelper

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