Rails administrate : big tutorial, bits of philosophy

administrate is a gem that allows you to build an admin dashboard. It’s often qualified as DSL-less admin builder, i.e. every file your admin dashboard rely on, can be fully overridden by the developer. Let’s see how. [more inside]

Glimmer DSL for LibUI Progress Spinner

I received a GitHub issue request the other day asking how to implement a progress spinner in Glimmer DSL for LibUI (Ruby Desktop Development GUI Library). I did a quick implementation of it using area vector graphics, and documented it under the newly added Area Animation section in the README. [more inside]

iruby - Using Ruby with Jupyter Lab

Ruby Fiber Scheduler

Ruby can work asynchronously with just a Fiber Scheduler and a couple built-in methods – no frameworks are required! [more inside]

Rubber Duck Dev Show Episode 31 | How To Learn a New Code Base

Hear from two rubyists about ways you can learn a new code base:

Glimmer DSL for SWT Video Tutorial 4 - Hello, Layout!

The Glimmer DSL for SWT Video Tutorial 4 is out! It walks software engineers through Hello, Layout! [more inside]

Introduction to Hotwire in Ruby on Rails (video)

With the release on Rails 7, Hotwire has generated a lot of confusion among Rails devs. So in this video, we’re going to look at how Hotwire works together with Stimulus and Turbo. [more inside]

Ruby - attr_accessor, attr_writer, and attr_reader

In Ruby, object methods are public by default, while data is private. To access data, we use the accessor method. [more inside]

The Economics of TDD

Getting started with TDD can be challenging, but it’s a game-changer. The increased speed and ROI cannot be compared with other development methods such as waterfall. [more inside]

Classes in Ruby Part 5 - Encapsulation, Polymorphism, Class Constants, Alias, etc...

Truemail 2.7.0 has been released 🚀 configurable plain Ruby 📨 email validator

Added ability to specify SMTP port number for SMTP validation layer. Be sure that email address valid and exists.

9 Ways To Make Slow Tests Faster

A test suite will gradually slow down unless it is dutifully maintained, dragging the team’s morale down and making your organization miss deadlines. [more inside]

PG zero-downtime migration from int to bigint (with Ruby on Rails notes)

If you have an integer column you must migrate to a bigint column and you can’t afford downtime (or you’re interested in how that can be done) this blog post gives the recipe. [more inside]

Cucumber Founder Aslak Hellesøy on TDD and BDD

🎧 Great interview with the Cucumber founder - Aslak Hellesøy [more inside]

An Introduction to the ViewComponent Gem

Modern web UIs are complex. Traditional layout/template/partial techniques are not always the best fit. ViewComponent seeks to provide a better way. It’s a framework for creating reusable, testable & encapsulated view components that integrate seamlessly with Rails. In this article, Abiodun Olowode shows us how to use ViewComponent to make our Rails views more manageable.

Multiple system Ruby versions on Fedora-based systems

Hi all. If you haven’t heard it yet, you can install different Ruby versions via modular packages on Fedora, CentOS Stream, RHEL, or Rocky Linux. You don’t need chruby or rbenv to have more choices.

Classes in Ruby Part 4 - Extending class and Reflections

Action Mailer : a tutorial

Action Mailer is already included in any new Rails application. However in this tutorial we will take time to see how each piece of code works. [more inside]

Glimmer DSL for Tk Hello, Labelframe and Scale!

Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library) v0.0.54 and v0.0.55 just got released with two new samples: Hello, Labelframe! and Hello, Scale! [more inside]

Simple CSV Parsing (with error handling)

Parsing CSVs doesn’t have to be complex. In this article I walk you through how to simplify any complexity that would normally require multiple objects, complicated nested loops, etc. Enjoy!

Multiple CSS files using TailwindCSS gem

Hi everybody, I think everybody who works with a tailwindcss-rails gem had a problem with just one file, so I have a solution for this, just add my gem to your project, create a folder “app/assets/tailwindcss_stylesheets” with your .css files inside and just start a server using ‘bin/dev’ or ‘rake tailwindcss:watch’ no more, it’s a simple solution. [more inside]

A few practical examples of using Rails associations with scopes.

[screencast] Classes and Objects in Ruby Part 3

Single and Double Splat operators in Ruby

The splat operator is a powerful Ruby feature, but we should be cautious when using it. I wrote a post that describes the Splat operator usage, along with dangerous cases I have seen.

Rubber Duck Dev Show Episode 30 | How To Get Started Coding

Hear two rubyists discuss how to get started coding: