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@pcreux VanRuby - Dec 1st 2016 DRY 2.0

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@pcreux VanRuby - Dec 1st 2016 D R Y

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@pcreux VanRuby - Dec 1st 2016 D on’t R epeat Y ourself

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 “For example, if you’ve duplicated a bit of code in many places, the Don’t Repeat Yourself (DRY) principle tells you to extract the duplication into a single common method and then invoke this new method in place of the old code.”

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@pcreux VanRuby - Dec 1st 2016 DRY = NO Code Duplication

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 DRY = NO Code Duplication

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@pcreux VanRuby - Dec 1st 2016 DRY 1.0 = NO Code Duplication

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@pcreux VanRuby - Dec 1st 2016 DRY 2.0 = NO KNOWLEDGE Duplication

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 Free Starter Pro99 Pro199 Pro499

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 Free Starter Pro99 Pro199 Pro499 NEW PRICING! Free Startup Prime Premium …

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 How did we get there?

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@pcreux VanRuby - Dec 1st 2016 KNOWLEDGE Duplication

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@pcreux VanRuby - Dec 1st 2016 Let’s FIX IT!

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 ONE SOURCE of TRUTH

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@pcreux VanRuby - Dec 1st 2016 ExAMPLE: POLICY OBJECT

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@pcreux VanRuby - Dec 1st 2016 POLICY OBJECT Can I do X?

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@pcreux VanRuby - Dec 1st 2016 POLICY OBJECT cancancan pundit
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@pcreux VanRuby - Dec 1st 2016 ONE SOURCE of TRUTH = RICH DATA MODEL

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@pcreux VanRuby - Dec 1st 2016

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@pcreux VanRuby - Dec 1st 2016 DRY = NO CODE DUPLICATION + NO KNOWLEDGE Duplication