Tutorials
Understanding and Implementing Bubble Sort in Ruby
You'll probably never need to implement bubble sort from scratch. Just call Array#sort! But sorting algorithms are a popular interview topic for a reason. They ask a bigger question: "Sure, you know what your code does, but do you know how it work...
How we scaled async workload processing at GitLab.com using Sidekiq | GitLab
Sidekiq was a great tool for async processing until it couldn't keep up. Here's how we made it scale........GitLab is a Ruby-on-Rails application that processes a lot of data. Much of this processing can be done asynchronously, and one of the solu...
Advanced Active Record: Using Subqueries in Rails
Active Record provides a great balance between the ability to perform simple queries simply, and also the ability to access the raw SQL sometimes required to get our jobs done. In this article, we will see a number of real-life examples of busines...
Make use of your Github Actions minutes for security checking Rails PRs
If you're using Github to host your Rails projects, you might be interested in a quick and easy way to add security checks to your PRs, via Github Actions.Github Actions, if you're not familiar with them, are like little CI tasks that can run on c...
Postgres Indexes for ActiveRecord Join Tables in Rails Apps
Join tables are a common citizen in Ruby on Rails apps. Their use case is to provide many to many relation between database models. Adding correct Postgres indexes on join tables is not obvious. I’ve noticed that some tutorials, Stack Overflow pos...