DCI and the application builds our mental models

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֯୩৴ଠ࿠ KAKUTANI Shintaro; Ruby-no-kai,Eiwa System Management,Inc. Ұൠࣾஂ๏ਓ೔ຊ3VCZͷձ ג Ӭ࿨γεςϜϚωδϝϯτ TIJOUBSP!LBLVUBOJDPN ࡳຈ3VCZձٞ 4VO %$* BOEUIFBQQMJDBUJPOCVJMET PVSNFOUBMNPEFMT

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http://gihyo.jp/news/report/01/sapporo-rubykaigi2012/00b4

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taken from igaiga’s ﬂickr @kakutani

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Ruby Evangelist

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http://www.pragprog.com/titles/jtrap/the-agile-samurai

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http://www.amazon.co.jp/o/ASIN/4274068560/kakutani-22

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He is the Agile Samurai, so I’m a...

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http://www.deos.co.jp/hojokoza

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http://www.deos.co.jp/hojokoza

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http://www.slideshare.net/snoozer05/20101204-youmustunlearnwhatyouhavelearned/61

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http://www.amazon.co.jp/o/ASIN/4798124583/kakutani-22/ref=nosim/

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ఏɹڙ ͓͔͛͞·Ͱ̏̌प೥ ৘ใԽٕज़Λ௨ͯࣾ͡ձͱڞੜ͢Δ

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http://estore.ohmsha.co.jp/

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W E A R E H I R I N G : R u b y i s t A N D Agile Designer https://github.com/esminc/jobs ( W A N N A B I E S ) ( W A N N A B I E S )

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Asakusa.rb http://www.ﬂickr.com/photos/takkanm/3978417669

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೔࣌೥݄೔ ౔ ৔ॴਂ઒ߐށࢿྉؗখܶ৔ ౎Ӧେߐށઢਗ਼੅നՏӺెา෼ ࢀՃඅ༻༗ྉ ఆһd໊ جௐߨԋ!BNBUTVEB !@LP ر๬ ӡӦ"TBLVTBSC ࣮ߦҕһ௕!LBLVUBOJ IUUQSFHJPOBMSVCZLBJHJPSHPFEP ͜Ε͸"TBLVTBSCͷ ճ໨ͷNFFUVQͳΜͩΑ

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https://twitter.com/kakutani/status/209815868325117952

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Thanks to everyone who retweeted my tweet <3

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5IF3VCZ,BJHJ3JTFT ֯୩৴ଠ࿠ KAKUTANI Shintaro; Ruby-no-kai,Eiwa System Management,Inc. Ұൠࣾஂ๏ਓ೔ຊ3VCZͷձcc ג Ӭ࿨γεςϜϚωδϝϯτ !LBLVUBOJ LBLVUBOJ!SVCZLBJHJPSH TokyuRubyKaigi05, 2012-07-29(Sun)

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K A I G I

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THE RUBYKAIGI 2013 May 30 (Thu) - June 1 (Sat) Tokyo, Japan [email protected] http://rubykaigi.org

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James O.Coplien

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We’ve already had nice resources on the net...

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http://www.amazon.co.jp/o/ASIN/0470684208/kakutani-22/ref=nosim/

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http://objectsonrails.com/

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http://clean-ruby.com/

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http://rubysource.com/dci-the-evolution-of-the-object-oriented-paradigm/

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http://dci-in-ruby.info/resources.html

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http://mikepackdev.com/blog_posts/24-the-right-way-to-code-dci-in-ruby

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...and @apotonick!!!11

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ιϑτ΢ΣΞ͸ Ͳ͜ʹ͋Δͷ͔

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ιϑτ΢ΣΞ͸಄ͷͳ͔ʹ͋Δ

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ΤϯυϢʔβʔͷ ϝϯλϧϞσϧΛ ιʔείʔυͱͯ͠ දݱ͢Δ

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গͣͭ͠ɺ ܁Γฦ͠ͳ͕Β ҭ͍ͯͯ͘

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Software Development as Learning Process

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“Agile”

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ςετۦಈ։ൃ

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ΦϒδΣΫτࢦ޲ઃܭ

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ద੾ͳ໊લͷ͍ͭͨ ίʔυΛద੾ͳ৔ॴʹ ஔ͘͜ͱ

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Ruby

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✓ Agile Style Workﬂow ✓ Test Driven Development ✓ Object-Oriented Design ✓ Ruby

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ιϑτ΢ΣΞ͸಄ͷͳ͔ʹ͋Δ

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http://www.amazon.co.jp/o/ASIN/4798124583/kakutani-22/ref=nosim/

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We’re on the same rails http://pixdaus.com/single.php?id=104150

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http://guides.rubyonrails.org/getting_started.html

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http://guides.rubyonrails.org/getting_started.html#the-mvc-architecture

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HTTP: Hyper TEXT Transfer Protocol

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http://martinfowler.com/eaaCatalog/activeRecord.html

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Active Record is a pattern for persistence

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Rails doesn’t save YOUR Applications! (it’s an awesome FRAMEWORK!)

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http://www.ﬂickr.com/photos/essgee/2477102230/ Recap ‘Common Pitfalls’ @ursm mentioned yesterday

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✓ Helpers don’t help up ✓ Partials are just partial, Not parts ✓ Too Fat to be a model

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✓ Helpers don’t help up ✓ Partials are just partial, Not parts ✓ Too Fat to be a model

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Too Fat to be a model

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DCI Data-Context-Interaction

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✓ Data: AR ✓ Context: ৔(Ba) Playing ﬁeld for “objects” ✓ Interaction: Role Object#extend / reﬁnements?

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http://mikepackdev.com/blog_posts/24-the-right-way-to-code-dci-in-ruby

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✓ Data: AR ✓ Context: “Activities” ✓ Interaction: Modules Poor man’s DCI: you should check the talk given by @ursm yesterday, thanks!

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http://qa.atmarkit.co.jp/

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✓ Agile Style Workﬂow ✓ Test Driven Development ✓ Object-Oriented Design ✓ Ruby