Category: Programming

Generic Entity handling code

In this blog post I outline my thinking on sharing code that deals with different types of Entities in your domain. We’ll cover what Entities are, code reuse strategies, pitfalls such as Shotgun Surgery and Anemic Domain Models… Read More

PHP development with Docker

I’m the kind of dev that dreads configuring webservers and that rather does not have to put up with random ops stuff before being able to get work done. Docker is one of those things I’ve never looked… Read More

Why Every Single Argument of Dan North is Wrong

Alternative title: Dan North, the Straw Man That Put His Head in His Ass. This blog post is a reply to Dan’s presentation Why Every Element of SOLID is Wrong. It is crammed full with straw man argumentation… Read More

Simple is not easy

Simplicity is possibly the single most important thing on the technical side of software development. It is crucial to keep development costs down and external quality high. This blog post is about why simplicity is not the same… Read More

PHP 7.1 is awesome

PHP 7.1 has been released, bringing some features I was eagerly anticipating and some surprises that had gone under my radar. New iterable pseudo-type This is the feature I’m most exited about, perhaps because I had no clue… Read More

Implementing the Clean Architecture

Both Domain Driven Design and architectures such as the Clean Architecture and Hexagonal are often talked about. It’s hard to go to a conference on software development and not run into one of these topics. However it can… Read More

Rewriting the Wikimedia Deutschland fundraising

Last year we rewrote the Wikimedia Deutschland fundraising software. In this blog post I’ll give you an idea of what this software does, why we rewrote it and the outcome of this rewrite. The application Our fundraising software… Read More

Object Orientated Lua code

During the last few weeks I’ve been refactoring some horrible Lua code. This has been a ton of fun so far, and I learned many new things about Lua that I’d like to share. Such Horrible Code The code… Read More

Clean Architecture diagrams

I’m happy to release a few Clean Architecture related diagrams into the public domain (CC0 1.0). These diagrams where created at Wikimedia Deutchland by Jan Dittrich, Charlie Kritschmar and myself for an upcoming presentation I’m doing on the… Read More

Notes: Implementing DDD, chapter 2

Notes from Implementing Domain Driven Design, chapter 2: Domains, Subdomains and Bounded Contexts (p58 and later only) User interface and service orientated endpoints are within the context boundary Domain concepts in the UI form the Smart UI Anti-Pattern… Read More