Ruby

Monads (minus maths, metaphors, or mythology)

A short while back, in my team Slack channel, I shared the following observation…

Implementing numbers in “pure” Ruby

In which Dmitry takes a deep dive into what makes a number…

🌒 Shadow requesting for great good

Build confidence in how your web applications perform under…

A beginner’s approach to fixing PostgreSQL timeouts

This is the beginning of a series of blogs on my…

Emoji Driven Development in Ruby

Let’s take a look at how Emojis can not only brighten up your text…

What does my commit sound like?

The product team at carwow is home to more than a handful of…

Surprises while splitting CSVs

At carwow, we load all our production Postgres databases into a data warehouse daily; the process is pretty much:

1. Use COPY FROM to extract the data as a CSV
2. Split the CSV into roughly evenly-sized, gzipped chunks

Managing your Elasticsearch indexes in Rails

Most Rails apps start life with a single relational database (generally PostgreSQL or MySQL), which are great for many purposes, but can get pretty slow when doing unstructured searches over huge datasets. When you hit this kind of problem, it’s time…

Coaching Ruby on Rails beginners

In this article, I’m going to talk about Rails Girls London 2017 and how the vast range of material is taught on the day. I’ll end with a personal story about how I then started teaching my partner how to code with Ruby on Rails.