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The wrong abstraction

Sandi Metz on her blog:

If you find yourself passing parameters and adding conditional paths through shared code, the abstraction is incorrect. It may have been right to begin with, but that day has passed. Once an abstraction is proved wrong the best strategy is to re-introduce duplication and let it show you what’s right. Although it occasionally makes sense to accumulate a few conditionals to gain insight into what’s going on, you’ll suffer less pain if you abandon the wrong abstraction sooner rather than later.


Freek Van der Herten is a partner and developer at Spatie, an Antwerp based company that specializes in creating web apps with Laravel. After hours he writes about modern PHP and Laravel on this blog. When not coding he’s probably rehearsing with his kraut rock band.