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Codeminer42’s Engineering Blog

Tag: Ruby

Making your system faster with Sidekiq and Redis How about using asynchronous services to improve your system performance

Making your system faster with Sidekiq and Redis

How about using asynchronous services to improve your system performance

Fabricio Albarnazby Fabricio AlbarnazMarch 31, 2023

We know that performance is one of the biggest factors that drive a system to success. But even using the most optimized algorithms, some tasks …

A beginner’s personal journey into automated tests

A beginner’s personal journey into automated tests

Felipe Teixeiraby Felipe TeixeiraMarch 16, 2022January 12, 2023

Like many engineers, I landed into coding kind of by accident. I was programming alone and unsupervised for a decade and my work was mostly …

CodeTips#1: Exploring Hashes in Ruby

CodeTips#1: Exploring Hashes in Ruby

Luan Gonçalvesby Luan GonçalvesFebruary 23, 2022January 12, 2023

Hello, fellow readers! Before we can jump right in, we have an announcement! There is a new series of posts here in the blog: CodeTips! …

Ruby’s Cool Features for Beginners

Ruby’s Cool Features for Beginners

Paulo Eduardoby Paulo EduardoOctober 13, 2021January 12, 2023

Hi, everyone! In this article, we’re gonna cover some features and concepts that differ Ruby from other programming languages, especially from languages that I’ve learned …

ActiveRecord Callback Chain: A Cool (and Weird) Edge Case

ActiveRecord Callback Chain: A Cool (and Weird) Edge Case

Luan Gonçalvesby Luan GonçalvesJuly 7, 2021October 17, 2022

Image by jcomp Well, it’s been a while. After a lot of time… I’m back! ( ̄▽ ̄)/ If you haven’t read my last post, give it …

Exploring RSpec – Improving Your Testing Skills

Exploring RSpec – Improving Your Testing Skills

Diego Thomazby Diego ThomazMarch 30, 2021January 12, 2023

Testing our apps has become mandatory these days. For an app to be considered reliable it must have 95% or so of test coverage. Having …

“!” and “?”: Understanding One of Ruby’s Coolest Naming Conventions

“!” and “?”: Understanding One of Ruby’s Coolest Naming Conventions

Luan Gonçalvesby Luan GonçalvesJanuary 29, 2019October 17, 2022

“Well, that’s quite some symbols you got there *♨_♨” – You, after reading this article’s title.* It was a calm Friday afternoon here at CodeMiner42, …

Destroying an Association Marked as Read-Only in Rails

Destroying an Association Marked as Read-Only in Rails

Adriano Costaby Adriano CostaDecember 17, 2018January 12, 2023

Read-only is a boolean setting. When true, it prevents an Active Record instance to be updated or destroyed. Although very helpful, there are a few …

Migrating from Paperclip to ActiveStorage My first challenge as an intern

Migrating from Paperclip to ActiveStorage

My first challenge as an intern

Leonardo Negreirosby Leonardo NegreirosNovember 7, 2018January 12, 2023

First of all, I’m no expert in programming. In fact, I started with Ruby on Rails about one and a half month ago with the …

Functional Object Composition and MVC Gluing together encapsulation and functional programming

Functional Object Composition and MVC

Gluing together encapsulation and functional programming

Thiago Araújo Silvaby Thiago Araújo SilvaMay 1, 2017January 12, 2023

I just read a great blog post on the internet about MVC not being object-oriented, and I could not agree more — after all, we …

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