Ruby On Rails

Tutorials

Meet Duck Typer: your new duck typing friend

Meet Duck Typer: your new duck typing friend The Ruby language leans on duck typing rather than formal interfaces. “If it walks like a duck and quacks like a duck, it’s a duck.” bodies = [poem, essay, case_study, user_manual].map(&:body) These objects come from different classes but all res...

How to Install a Gem

How to Install a Gem Hello, and welcome to How To Install A Gem. My name is André Arko, and I go by @indirect on all the internet services. You might know me from being 1/3 of the team that shipped Bundler 1.0, or perhaps the 10+ years I spent trying to keep RubyGems....

gem.coop namespaces

gem.coop namespaces Last week, we at gem.coop announced support for namespaces that you can publish to and use namespaced gems in Bundler today. Our original post outlines how namespaces improve package security, but in this post we’ll go through how to use them and ...

Enable Ruby LSP in Claude Code — Quick Setup Guide

Enable Ruby LSP in Claude Code — Quick Setup Guide Ruby LSP is a language server for Ruby built by Shopify. It provides go-to-definition, document symbols, hover information, and diagnostics. In your editor - VS Code, Neovim, Zed - you probably already use it and do not even notice because it just...

Rails Testing on Autopilot: Building an Agent That Writes What Developers Won't | Mistral AI

Rails Testing on Autopilot: Building an Agent That Writes What Developers Won't | Mistral AI In most large Rails monoliths, organizations prioritize writing new features over writing tests for them. Over time, more and more code goes untested, forcing teams to spend more time debugging painful bugs. We built an autonomous agent that clos...

How I Audit a Legacy Rails Codebase in the First Week

How I Audit a Legacy Rails Codebase in the First Week My legacy Rails app playbook. After 50+ engagements, here's the exact process, tools, and stakeholder questions I use in week one.After 50+ engagements, I’ve learned that the first week isn’t about reading the code. It’s about reading the signals....

Storing multi-valued enum fields in ActiveRecord | SINAPTIA Rails’ enum DSL is great for single values, but what about multiple? We compared 4 approaches across performance, extensibility, and maintainability to find the best fit.

htmx Infinite Scroll | Alchemists

htmx Infinite Scroll | Alchemists Pagination is always a feature you have to tackle in web application development in one form or another. A common approach is to use a gem, like Pagy, to provide the following capabilities: Load records in batches (a.k.a. pages). Previous and ne...

Smooth UI animations on server-rendered HTML | Adrien Siami

Smooth UI animations on server-rendered HTML | Adrien Siami I’ve been using Hotwire in production since the beta release of Turbo, and it’s changed the way I build web apps. It’s a great way to get SPA-like interactivity at a fraction of the complexity. In this article, we’ll explore how we can use Turbo ...

Using Minitest::Spec in Rails? Watch out for the lifecycle hooks! - Remi Mercier - Freelance Software Developer

Using Minitest::Spec in Rails? Watch out for the lifecycle hooks! - Remi Mercier - Freelance Software Developer A small mistake sent me on an overly long investigation into Minitest hooks, and how Rails integrates with these.After picking up Minitest to complement the QA process of one of my retainer clients, I’ve had confusing errors in our test suite for ...

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