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Codeminer42’s Engineering Blog

Tag: Ruby on Rails

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

Luan Gonçalvesby Luan GonçalvesJuly 7, 2021July 7, 20210

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 …

My Experience Migrating a Rails API to Crystal and AWS Lambda – Part I

The First Iteration on Rails

José Eduardoby José EduardoFebruary 11, 2020February 13, 20201

Hey folks! Today I am going to tell you how was my first project as a Codeminer42 employee. Two colleagues and I were charged of …

Destroying an Association Marked as Read-Only in Rails

Adriano Costaby Adriano CostaDecember 17, 2018November 11, 20190

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

Leonardo Negreirosby Leonardo NegreirosNovember 7, 2018November 11, 20190

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 …

Crystal by Numbers

Benchmarking Kemal, Ruby on Rails, and Sinatra

Dmitry Rochaby Dmitry RochaApril 28, 2017November 11, 20190

Run! TL;DR Kemal delivers 8.3x more requests than Rails and 1.5x than Sinatra, using only 15MiB (against 110MiB in Rails and 47MiB in Sinatra) and …

Zero to Up and Running a Rails Project only using Docker

Dmitry Rochaby Dmitry RochaMarch 27, 2017November 11, 20190

Disclaimer: this post is based on Quickstart: Compose and Rails — Docker the main difference is that I will run everything with my own user …

Refactoring Ruby: From Subclass to Registry

From developing a solution to gradually improving it by listening to the pain

Thiago Araújo Silvaby Thiago Araújo SilvaMarch 23, 2017November 11, 20190

My team was given a particularly laborious task: implement responsive images throughout a legacy Rails application. Back then, the app was sending disproportionally large image …

Halving Response Times: Lessons Learned

Renato Higor Do Nascimentoby Renato Higor Do NascimentoMarch 17, 2017November 11, 20190

Response times under 100 ms are capable of lightening anyone’s heart. It’s even better when you reach that milestone as a side effect of some …

Towards Minimal, Idiomatic, and Performant Ruby Code

Debunking some popular Ruby idioms

Thiago Araújo Silvaby Thiago Araújo SilvaMarch 6, 2017November 11, 20190

I try to embrace a particular way of working with code: it should be minimal, idiomatic, and performant by default. Sometimes it is necessary to …

Deploy de App Ruby on Rails em VPS

Dmitry Rochaby Dmitry RochaFebruary 7, 2017November 11, 20190

PaaS ou VPS? Ultimamente tenho preferido serviços PaaS como o Heroku, mas muitos clientes preferem uma VPS na maioria das vezes pelo preço fixo, mas …

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