Ruby articles

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Be careful with time durations in Rails

Rails' date and time helpers are great. They save us from duplicating simple add-duration-to-time logic across our applications and make the code more readable. However, complex date manipulations are dangerous places full of edge-cases. This article discusses some of them. 😅

Building a New Programming Language in Ruby: Wrapping Up

The conclusion to Alex Braha Stoll's 5-part series on how to build a toy programming language in Ruby.

An Introduction To Hanami 2.0

Ruby on Rails is one of the most popular Ruby frameworks, but it's not the only one. Hanami 2.0 is faster than Rails and packed with exciting features—it might be the tool you need for your next project!

An intro to dry-schema in Ruby

Data structure and type validations are so essential in modern Rails apps. You've probably used Active Model validations and strong parameters, but did you know there is a better way? This article introduces the dry-schema gem—a faster alternative to the defaults!

How to Build Your Own Rails Generator

Generators are a powerful feature you can use to automate routine tasks in Rails—but do you know how to make your own? This article explores Rails generators in depth, including how to build a generator from scratch.

A Deep Dive into Active Record Validations

Accepting user input is critical to modern Rails applications, but without validations, it can cause problems. In this article, learn how to use ActiveModel validations to ensure the data you process is safe.

Deploying Rails with Docker and AWS Fargate

Want to deploy a Rails app with Docker and AWS, but not sure where to start? AWS Fargate simplifies the convoluted process of deploying Docker on Amazon's Elastic Container Service (ECS). It's also a good alternative to Heroku.

Effective Queries with Rails and PostgreSQL

Getting data into your database is easy, but querying large datasets is challenging—especially without the right indexes. Pavel Tkachenko teaches how to write performant SQL queries with EXPLAIN and ANALYZE.

A Comprehensive Guide to Rails Internationalization (i18n)

Internationalization means adapting your application to the language and culture of your users—a difficult task! Luckily, Rails provides the I18n API. In this article, Pavel Tkachenko shows us how to start translating.

Minitest vs. RSpec in Rails

Rails defaults to minitest, but much of the community has adopted RSpec—which is right for you? In this article, William Kennedy compares RSpec and Minitest in a new Rails app.

Intro to RSpec Mocks

RSpec provides tools that help you test the behavior of your Ruby objects. Join Abiodun Olowode for a tour of mocks, stubs, and spies—and learn how to use them in your Ruby projects!

Full-text Search with Elasticsearch in Rails

If you're finding performance bottlenecks with full-text search in your database, it may be time to switch to Elasticsearch. In this tutorial, Ianis introduces Elasticsearch and shows us how to implement an efficient search feature in Rails.
  • A photo of Ianis Triandafilov By Ianis Triandafilov
  • Jun 27, 2022

Containerizing an Existing Rails Application

Containers are popular because they create a reproducible environment that you can deploy to production and run locally in development. However, containerizing a Rails app can be tricky—Jeff Morhous helps us navigate the pitfalls.

Hidden Gems: ActiveRecord Store

PostgreSQL and MySQL are great for structuring data using relationships, but what if you don't always know the structure up-front? That's where ActiveRecord::Store really shines. It's like NoSQL, without changing databases.

Event Streaming in Rails with Kafka

Do you need to process a lot of data in real time? Event streaming is a pattern that could help. David Sanchez walks us through how to do event streaming in Rails with Apache Kafka, the popular open-source event streaming platform.

Linting and Auto-formatting Ruby Code With RuboCop

What if you could write sloppy code and have Ruby fix it for you automatically? With RuboCop, you can! Of course, linters and auto-formatters have other benefits, even if your code is pristine. Join Ayooluwa Isaiah for a tour of RuboCop.

Understanding the Ruby Object Model In Depth

If you define the same method on a class, a subclass, and a mixin, which one gets called first? Join Abiodun Olowode in an exploration of Ruby's object model!

How to Sell a One-time Purchase in Rails With Stripe

Have you ever wanted to accept payments in Rails? With Stripe Checkout, it's never been easier. Jeffrey Morhous shows us how.

Rails' Hidden Gems: ActiveSupport Cache Increment and Decrement

You've probably used Rails.cache to read, write, and fetch cached data in Rails—but did you know you can also work with counters? In this series, Jonathan Miles introduces us to some of the lesser-known tools hidden in your Rails codebase.

How to Avoid Race Conditions in Rails

Race conditions are hard to debug—especially when you don't know it's a race condition! This article looks at some common race conditions and the best solutions for handling each one.
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