(Ab)Using Single Table Inheritance to Refactor Fat Models
How to deal with a model that tries to do too much? Consider something like this:
Archive
2021
Real-Time Command Line Applications with Action Cable and Thor
If you build a Rails application that has any kind of real-time feature, chances are you use Action Cable.
Processing images with ActiveStorage and Imgproxy
ActiveStorage has a nifty feature that allows you to serve variants of uploaded images. Think of a user uploading a profile image. You won’t need the full-si...
Load testing GraphQL with WRK
For performance testing wrk is one of my favorite tools. Whether you are trying to get a quick benchmark or building a performance test suite - it is fairly ...
CLI OAuth in Ruby
Have you ever used a command-line application that triggered an OAuth authentication flow to log you in and wondered how that works? For example, Google Clou...
Use GitHub Actions to find Outdated Dependencies
Keeping up with dependencies can be a pain. That is especially true if you build a tool that heavily relies on some library. If that library changes in a maj...
Pull Request Previews with Rails, Cloud Run, and GitHub Actions
If you work in a larger organization, chances are you have access to some sort of staging environment where you can preview work that is currently in progres...
2020
Improve your Shell with FZF and Friends
If you spend lots of time in the terminal fuzzy searching can be an absolute game changer - at least it was for me. Tools like FZF, FZY, or Selecta allow you...
2019
Fabulous FactoryBot - Complex factories for Rails
In my previous post about FactoryBot we learned how to use its various features to simplify creating test data. In this post, we’ll put that knowledge to the...
Fabulous FactoryBot - A deep dive
When you write automated tests you sooner or later need to worry about test data. Regardless of whether you write unit, integration or end to end tests, it’s...
A Year of Glumpat
A year ago I made a post describing my workspace setup. A lot has happened in this past year, and so my setup changed a fair bit. In this post I’ll give you ...
An Introduction to IdeaVim
I have been using Vim seriously™ for about a year now. As I have learned, and other Vim acolytes will probably tell you, learning Vim works best if you use i...
2018
Mastering Vim Quickly - A Short Review
I wrote about Practical Vim a while ago, and since then I have been trying to improve my Vim in a number of ways. One of which is, coincidentally, reading mo...
Impressions of CON.ECT Software Trends
On the 20th of September 2018 I had the opportunity to attend and speak at a small event organized by CON.ECT Event Management.
Glumpat
A colleague of mine recently said to me: “Hans, you know, you use so much stuff in your terminal. So many tools. Don’t you want to do a talk about it or some...
Practical Vim - A Short Review
What is Vim? Since you’re reading this, I’m pretty sure you have at least a vague idea of what it is. Here’s what it says on the tin of Practical Vim by Dre...
Keeping in Sync with Mackup
Do you work on multiple PCs? Do you use a plethora of different tools that in turn use a bunch of configuration files to store their settings? Do you spend w...
Impressions of WeAreDevelopers 2018 - Day III
This is the last post in a three part series about We Are Developers. This one is about day three. Check out the previous posts to learn more about what happ...
Impressions of WeAreDevelopers 2018 - Day II
This is continuation of the previous post about We Are Developers. I was a bit late on day two and missed Brenda Romero’s talk about how not to fail as a gam...
Impressions of WeAreDevelopers 2018 - Day I
We Are Developers is one of the largest developer conferences in central Europe and took place between the 16th and 18th of May this year. I was very lucky t...
Using Synology Cloud Station Drive on Arch
I own a Synology Diskstation NAS and use Synology Cloud Station Drive for syncing some documents and configuration files between PCs. Reason being: Dropbox t...
A Simple Guide to the Ducky One
It’s that time of the year again. That time when I remember that I have a blog and maybe should write something now and then. Well here goes.
2017
Raspberry Pi Homeserver - Part 2
I purchased and configured a Raspberry Pi 3 a couple of months ago. Back then, I wrote about some basic set up and future plans. I haven’t had to opportunity...
Pages: Using JHipster and Kotlin and Angular
I have been working on a small side project for a couple of weeks now. Thematically, it’s nothing too exciting. Just a self-hosted web application to write m...
Raspberry Pi Homeserver - Part 1
I finally folded and bought myself a Raspberry Pi 3. I have been thinking about using one as a media server on my home network for quite some time now. Holid...
Some DOs and DONTs of Public Speaking
This post might be kind of stupid. I’m by no means an experienced public speaker. However, I DID have to do a couple of presentations this past half-year, an...
Getting Started with Java Pathfinder
Java Pathfinder (JPF in short) is a model checking tool for Java programs. Model checking is an approach to formal verification and can be used quite nicely ...
Installing Reactive Banana on Ubuntu 16.04
In the days leading up to the Christmas holidays last year I was searching for a little project that I could work on. After some consideration I settled on t...
Learn Myself a Haskell
Once upon a time I actually studied mathematics. Overall it wasn’t a particularly pleasant experience. I guess although I was pretty good at “school mathemat...
2016
Better OOP?
I had and have the pleasure to take part in Object Orientated Programming, a course taught at the TU Wien this semester. OOP is a mandatory course, taken by ...
Using Amazon AWS, Jenkins, and Sonar for university projects
If you study information technology at the technical university in vienna, sooner or later there comes the day when you have to work on a project together wi...
Using Jetbrains RiderRS on Ubuntu 15.10
A couple of days ago Jetbrains released the first version of Project Rider in an early access program. If you know me personally you probably are aware that ...
Python Challenge - Part 1
A couple of days ago my girlfriend told me about this quiz she found - the python challenge. Its basically a web quiz containing levels and you progress leve...