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Rails Components @ RMR 2015 Stephan Hagemann, Jeff Taggart @shageman, @jetaggart

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Agenda 1. Who are you? And why components? 2. What are components? 3. The structure of your app 4. Real life example: The structure of P2Bi 5. The first refactor @shageman, @jetaggart

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Who are you? Why components? @shageman, @jetaggart

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Jeff… Stephan... @shageman, @jetaggart

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What are components? @shageman, @jetaggart

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https://github.com/barinek/uservices @shageman, @jetaggart

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a context explicit dependencies @shageman, @jetaggart

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Creating an application based on components creates constraints that will improve the overall maintainability of your app @shageman, @jetaggart

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Creating an application based on components creates conversations that will improve the overall maintainability of your app @shageman, @jetaggart

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The structure of your app @shageman, @jetaggart

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@shageman, @jetaggart

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@shageman, @jetaggart

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@shageman, @jetaggart

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@shageman, @jetaggart

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Architecture Sketching Exercise @shageman, @jetaggart

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Real life example: The structure of P2Bi @shageman, @jetaggart

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JEFF: ARCHITECTURE DIAGRAM @shageman, @jetaggart

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@shageman, @jetaggart

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Discussion of P2B Code @shageman, @jetaggart

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The first refactor @shageman, @jetaggart

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For this example application, your imaginary client, who has limitless time and budget (unlike clients in the real world), wants you to develop a ticket-tracking application to track the company’s numerous projects. @shageman, @jetaggart https://github.com/rubysherpas/r4ia_examples

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github.com/shageman/r4ia_examples gist.github.com/shageman/ 89d869ef8539f78312b0 @shageman, @jetaggart

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Pros and Cons of persistence extraction ● mechanical refactoring (i.e., fast) ● shows entanglement of model layer ● works on every app ● scriptable ● creates a sample and pattern ● It does (not yet) create a meaningful “domain component” @shageman, @jetaggart

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Discussion of extraction script @shageman, @jetaggart

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Extraction exercise for everyone’s apps @shageman, @jetaggart

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Wrapping up @shageman, @jetaggart

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Working on it… 50% off: leanpub.com/cbra/c/rmr15 @shageman, @jetaggart

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http://cbra.info Link collection about CBRA @shageman, @jetaggart

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Check out: http://lotusrb.org/ Lotus MVC @shageman, @jetaggart

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Thanks! @shageman, @jetaggart