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Base Libraries Should be Stable
Base Libraries Should be Stable
In this post I go over the principles that govern package (library) design and one specific issue I have come across several times.
Robert C Martin has proposed six Package Principles. Personally I find the (linked) description on Wikipedia rather confusing, especially if you do not already understand the principles. Here is my take on library design using short and simple sentences:
Libraries…
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Clean Architecture + Bounded Contexts
Clean Architecture + Bounded Contexts
In this follow-up to Implementing the Clean Architecture I introduce you to a combination of The Clean Architecture and the strategic DDD pattern known as Bounded Contexts.
At Wikimedia Deutschlandwe use this combination of The Clean Architecture and Bounded Contexts for our fundraising applications. In this post I describe the structure we have and the architectural rules we follow in the…
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Bounded Contexts in the Wikimedia Fundraising Software
Bounded Contexts in the Wikimedia Fundraising Software
In this follow-up to rewriting the Wikimedia Deutschland fundraising I tell the story of how we reorganized our codebases along the lines of the DDD strategic pattern Bounded Contexts.
In 2016 the FUN team at Wikimedia Deutschland rewrote the Wikimedia Deutschland fundraising application. This new codebase uses The Clean Architectureand near the end of the rewrite got reorganized partially…
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Guidelines for New Software Projects
Guidelines for New Software Projects
In this blog post I share the Guidelines for New Software Projects that we use at Wikimedia Deutschland.
I wrote down these guidelines recently after a third-party that was contracted by Wikimedia Deutschland delivered software that was problematic in several ways. The department contracting this third-party was not the software development department, as since we did not have written down…
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Collaboration Best Practices
During 2016 and 2017 I worked in a small 3 people dev team at Wikimedia Deutschland, aptly named the FUN team. This is the team that rewrote our fundraising application and implemented the Clean Architecture. Shortly after we started working on new features we noticed room for improvement in many areas of our collaboration. We talked about these and created a Best Practices document, the content…
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PHP project template
Want to start a new PHP project? Perhaps yet another library you are creating? Tired of doing the same lame groundwork for the 5th time this month? Want to start a code kata and not lose time on generic setup work? I got just the project for you!
I’ve created a PHP project templatethat you can fork or copy to get started quickly. It contains setup for testing, lining and CI and no actual PHP…
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Introduction to Iterators and Generators in PHP
Introduction to Iterators and Generators in PHP
In this post I demonstrate an effective way to create iterators and generators in PHP and provide an example of a scenario in which using them makes sense.
Generators have been around since PHP 5.5, and iteratorshave been around since the Planck epoch. Even so, a lot of PHP developers do not know how to use them well and cannot recognize situations in which they are helpful. In this blog post I…
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PHP 7.1 is awesome
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 it was in the works. In short, iterableallows for type hinting in functions that just loop though their parameters value without restricting the type to either array or…
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