Ruby on Rails Screencast Tutorials

URI in Ruby is powerful, but not complete. We can use the PublicSuffix and Addressable gems to take this a step further for parsing domains and subdomains.

39m

Contributing to Open Source: Adding subdomains to the Addressable gem

May 22, 2023 Pro

The addressable gem adds some nice features over Ruby's built-in URI class, but it doesn't have any helpers for extracting subdomains. In this lesson, we'll add some methods to Addressable to make accessing subdomains easier.

31m

How to debug OAuth login in Rails with OmniAuth

Jun 05, 2023 Pro

OAuth can be hard to understand and debug. Plus, this process is abstracted even further with OmniAuth in Rails. In this episode, we'll walk through t

17m

Law of Demeter and Delegation

Aug 07, 2023 Pro

In this episode, we will dip our toes into an Object Oriented Design Principle known as the Law of Demeter. We will then look at an example of a small violation of this principle followed by a couple of solutions to remedy the issue.

17m

Authenticate By & Password Challenge Methods In Rails 7.1

Sep 20, 2023 Pro

Has secure password is boasting some new benefits in Rails 7.1 with the addition of the authenticate_by method which reduces timing-based enumeration attack vulnerabilities. Also being introduced is the ability to provide a required password challenge.

14m

Unused Rails Routes Command

Sep 25, 2023 Pro

In this lesson, we will look at a new option coming to the rails routes command in Rails 7.1 which will display a list of any routes deemed as unused in your Rails application. Let's see what qualifies a route as unused and learn some other handy tips!

13m

The Behaviors Of Super

Oct 13, 2023 Pro

In this lesson, we will look at the various ways we can use the super keyword in Ruby in regard to forwarding method arguments to the equivalent method in a parent class.

Strict Loading with ActiveRecord

Oct 16, 2023 Pro

Not eager loading in your Rails applications can have series performance side effects. Rails now comes with a strict_loading feature that you can use to make sure that queries are run in an efficient manner.

14m

Organizing Rails Model Files

Oct 30, 2023 Pro

In this lesson, we will look at some guidelines which we can use to help keep our Rails model files organized and uniform. Along the way we will uncover a couple of gotchas to be aware of when doing the work to align your files with the template.

17m

Dynamic Configs in Devise with Ruby Lambdas

Nov 27, 2023 Pro

Config options sometimes need to support dynamic values and not just simple booleans. In this lesson, we'll discover a config in Devise, explore how we can hack around it, and then make a Pull Request to improve this feature in Devise instead.

21m

Improving form_with Errors in Rails

Dec 04, 2023 Pro

In this episode, we will look at how we go from encountering an error, finding the root cause, implementing a code change in the Rails source code to provide a better debugging experience in the future, and submitting the change as a pull request to Rails

15m

Dynamic Single Table Inheritance with Rails

Jan 29, 2024 Pro

Using some Ruby metaprogramming and class_eval, we can build Notifiers that allow us to dynamically define STI models and inject code into them with our notification system.

14m

Using Deprecation Warnings in Rails

Feb 12, 2024 Pro

In this lesson, we will learn how to communicate features that will be removed in the future by using a built in feature of Rails specifically ActiveSupport::Deprecation.

16m

Scraping Web Pages with Ruby

Feb 26, 2024 Pro

Kicking off our Web Scraper series, we start out with the bread and butter: scraping web pages with Ruby and Nokogiri.

11m

Web Scraper UI Controllers & Actions

Feb 28, 2024 Pro

Building the controllers and actions for our Web Scrapper application lets us interact with Rails to add and remove Pages and view the results as they're generated.

14m

Storing Web Scraper Results in ActiveRecord models

Feb 27, 2024 Pro

We need to keep track of the web pages we want to monitor and scrape data from, so let's create our ActiveRecord model for storing this information and a Result model for storing the result each time we scrape a web page.

42m

Designing our Web Scraper UI with TailwindCSS

Feb 29, 2024 Pro

TailwindCSS is an excellent CSS framework for letting us quickly iterate on design ideas to make our UI much cleaner and easier to use.

14m

Sending Emails For Successful Web Scraper Results

Mar 01, 2024 Pro

When a web page is scraped successfully, we need a way to notify the user. For example, when the Raspberry Pi 5 is finally in stock, we want to know right away with an email.

16m

Sending Emails with Rails in Production using Postmark

Mar 05, 2024 Pro

Now that our application is deployed to production, we can use a service like Postmark to send real emails.

Wrapping up our Web Scraper in Rails

Mar 06, 2024 Pro

Wrapping up our Web Scraper, we debug an issue in production with SolidQueue and some challenges for you to add more features to the web scraper.

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Advanced URL Parsing in Rails with PublicSuffix & Addressable gems

May 15, 2023 Pro