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Codeminer42’s Engineering Blog

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  • #6982 (no title)

Tag: Ruby on Rails

Introduction to ActiveRecord Models

This is a step by step guide to create, update and test ActiveRecord models. For detailed information please refer to Rails Guides.

Dmitry Rochaby Dmitry RochaOctober 4, 2016January 8, 2026

Now that you know how to get up and running with Ruby (and Rails) from the article 4.5 Ways to Install Ruby in Userspace, that …

Controller Best Practices: Don’t Hide Instance Variables

Controller Best Practices: Don’t Hide Instance Variables

Thiago Araújo Silvaby Thiago Araújo SilvaApril 27, 2016May 30, 2023

This is something I often mention in code reviews, and it’s also mentioned in some Rails guidelines elsewhere without further explanation: please, don’t hide instance …

Using ActiveRecord to create atomic transactions

Mauricio Kleinby Mauricio KleinApril 23, 2016

Imagine the following situation: You were asked to create a new wallet feature to an application. This wallet must allow money transfer between users. Basically, …

Data Bugs on Rails

Data Bugs on Rails

Thiago Araújo Silvaby Thiago Araújo SilvaApril 17, 2016May 30, 2023

Bugs are commonplace artifacts in any kind of software system. Most applications are filled with lots of bugs, for so many reasons that can’t even …

Writing custom RailsAdmin actions

Writing custom RailsAdmin actions

Fuad Saudby Fuad SaudFebruary 27, 2016January 8, 2026

RailsAdmin is known for not being the most flexible admin framework out there; and while this is true, it is, in fact, possible to extend …

Why I’m Enjoying My Job at Codeminer

Why I’m Enjoying My Job at Codeminer

Lucas Renanby Lucas RenanMarch 23, 2015May 26, 2023

Guido Mine — Zabrze — Poland I’ve been developing software — most back-end development — in the past eight years. Like many web developers, I …

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