Ruby on Rails Screencast Tutorials - Page 3

hCaptcha is a method to try detecting bots on your website. This episode, we'll walk through how to implement hCaptcha in a way that's compatible with Turbo using Stimulus.js and

15m

Extracting Reusable Base Classes In Ruby

Feb 27, 2023 Pro

If you're building something with shared functionality, extracting a base class can be helpful to create a shared place each class can inherit from. We'll explore how to do this for our API clients and one of the tricky things about accessing constants.

Thread Safety with Mutexes in Ruby

Jul 21, 2025 Pro

Thread safety can be tricky, so let's explore what can happen if our code isn't thread safe before diving into a real-world example where a mutex plays an important role in keeping a gem thread safe.

14m

How to Write C Extensions for Ruby Gems

Dec 20, 2021 Pro

C extensions are a powerful tool to connect Ruby code with C libraries that can perform much faster than a pure Ruby counterpart.

22m

Wrapping Business Logic with Plain Old Ruby Objects

Jun 13, 2016 Pro

Learn how to pull business logic out of your models and put them into Plain Old Ruby Objects (POROs) in order to clean up your code and keep chunks of business logic in reusable bits.

19m

How to use CodeMirror 6 with Ruby on Rails

Nov 21, 2022 Pro

Need a way for users to edit code in your Rails app? CodeMirror is an excellent option for a Javascript code editor that you can use with your Rails apps. We'll set up CodeMirror with Stimulus.js so you can replace any text field in Rails.

19m

How to Submit Complex Form Data in Ruby on Rails

Sep 21, 2020 Pro

It's a common situation that we need to submit complex data in our forms in our Rails apps. We'll explore how can we transform the simple values browser forms allow and convert them into something Rails can use and transform into Ruby objects.

23m

How to Build Reusable Features with Concerns in Ruby on Rails

Jul 03, 2023 Pro

Modules and concerns provide a way to make functionality reusable across your Rails application and other apps. In this lesson, we'll show you how we can refactor our comments functionality to add a feature to any resources in Rails.

21m

How Cross-Site Request Forgery (CSRF) Works in Ruby on Rails

Feb 08, 2022 Pro

Ever gotten an InvalidAuthentictyToken error in Rails and wondered how CSRF works? In this lesson, we'll learn how it works behind the scenes so you can understand exactly what's going on.

12m

Advanced URL Parsing in Rails with PublicSuffix & Addressable gems

May 15, 2023 Pro

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.

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.

18m

ActiveSupport Concerns: Making a Soft Deletable module

Feb 12, 2015 Pro

An introduction to Ruby on Rails ActiveSupport concerns where we build a Soft Deletable module like the Paranoia gem

Testing Against Multiple Databases in Rails with The DATABASE_URL Env Var

Apr 11, 2022 Pro

Rails apps and Rubygems might need to support multiple databases. We can use the DATABASE_URL environment variable to quickly swap out the database that Rails uses in CI, local testing, and more.

22m

Nested Comment Threads in Rails - Part 1

Sep 12, 2018 Pro

How to build nested comments and threads in Ruby on Rails

13m

How to Debug Ubuntu and Debian Packages

Apr 14, 2025 Pro

We spend most of our time working with Ruby gems and node modules, but on the rare occasion, we might need to debug an Ubuntu / Debian package. In this lesson, we'll see how these packages work and debug something in the PostgreSQL package.

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.

19m

Custom Attribute Serializers with ActiveRecord in Rails

Nov 13, 2023 Pro

Did you know serialize can be used for more than saving Ruby hashes as JSON or Yaml in your db? You can take any attribute and convert it to an object seamlessly with Rails using serialize and custom coders.

13m

ActiveRecord Aggregations with composed_of

Mar 18, 2024 Pro

ActiveRecord Aggregations let you use composed_of to combine columns into a single attribute using a Ruby object.

16m

Practical Decorators & Extracting Concepts

Apr 22, 2024 Pro

You might not realize your code has concepts that need to be extracted. Sometimes it's as simple as a small decorator around a Ruby class as we'll see in this lesson.

11m

Video Hosting API Client from Scratch

Mar 27, 2024 Pro

Next up, we need to sync videos from our hosting provider's API so we'll build an API client from scratch using net/http in Ruby

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How to use hCaptcha with Ruby on Rails, Turbo, and Stimulus.js

Aug 01, 2022 Pro