Extract
Till
You
Drop
I'm Mathias Verraes
Student of Systems
Meddler of Models
Labourer of Legacy
@mathiasverraes
http://verraes.net
Live demo
Questions at the end only please
joind.in/9334
verraes.net
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Extract till you drop

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Symfony Live London, September 20, 2013
http://verraes.net/2013/09/extract-till-you-drop/

We’ve all seen them: applications that got out of control. Under the pressure of deadlines and endless change requests, with the weight of years of legacy, the code has become unmaintainable. Adding features is a slow hit and miss process. Everybody knows something needs to be done, but nobody knows how. To change the code safely, you need tests, but to make it testable, you need to change it. Rebuilding the system from scratch is not an option.

There’s good news: With the right tools, techniques, and mindset, any codebase can be brought under test, and be refactored towards a better architecture. All without affecting the behavior of the system, and allowing the business to continue.

This presentation is not for the weak of heart. We’ll skip the theory and dive straight into the spaghetti code. Dependencies will be broken; designs will be messed up before they get better; fat controllers will mercilessly be put on a diet. It’s live coding, and it may fail. But it will change how you approach legacy code forever.

More at http://verraes.net/ or http://twitter.com/mathiasverraes

Mathias Verraes is an independent consultant. He advises companies on how to build enterprise applications for complex business domains. He specializes in curing large legacy projects: the kind where there’s half a million lines of spaghetti code, and nobody knows how to get the project under control. As a blogger and and a speaker, Mathias is on a mission to spread the ideas of Domain Driven Design in the web development world. When he’s not working, he’s at home in Kortrijk, Belgium, helping his two sons build Lego train tracks.

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Extract till you drop

  1. 1. Extract Till You Drop
  2. 2. I'm Mathias Verraes Student of Systems Meddler of Models Labourer of Legacy @mathiasverraes http://verraes.net
  3. 3. Live demo Questions at the end only please
  4. 4. joind.in/9334 verraes.net Re-watch this presentation:

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