A Perl Monger in the Ruby World

by Kentaro Kuribayashi

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Rubyistͷࠃͷ Perl࢖͍ @kentaro ܀ྛ݈ଠ࿠ paperboy&co.

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@kentaro ,ZPUPQNॴଐ ΤϯδχΞ 1FSMFS ϧϏʔετ ฐࣾެࣜίϯςϯπ /FX ܀ྛ݈ଠ࿠ paperboy&co.

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ٕज़ج൫੔උΤϯδχΞ

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ʊਓਓਓਓਓਓਓਓʊ ʼɹಥવͷRubyԽɹʻ ʉ^Y^Y^Y^Y^Y^Y^ʉ

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ͷΜͨΜ ·͚ͭΜ mizzy

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Kyoto.pm͔Βདྷ·ͨ͠

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Kyoto.pm΁Ҡ؅

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Cinnamon A Minimalistic Deploy Tool

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https://speakerdeck.com/u/kentaro/p/datamapper

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࠷ۙ͸Perlશવॻ͍ͯ ͳ͍ ͨ·ʹίʔυϨ Ϗϡʔ͢Δ͙Β͍

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YAPCͷ5γϟπΛ ணͯRubyͷձͰ rubygemsΛDISͬͯ Δࢲͷ༐࢟Ͱ͢ Emacsͷձͳͷʹ Subilme Text2ͷ࿩ ͷΈͷεϥΠυ

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ͱ͍͏Θ͚Ͱɺࠓ೔ ͸Perlʹ͸ಛʹؔ܎ ͷͳ͍࿩Λ͠·͢ɻ

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ϖύϘͰ͸࠷ ۙͳʹ΍ͬͯ ΔΜͰ͔͢ʁ ͏ʙΜʜͳΜͱ ͍͏͔ɺ͍Ζ͍ ΖͰ͢Ͷʜɻ

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Ξ΢τϓοτͷେ੾͞ http://www.ﬂickr.com/photos/timjoyfamily/532089575/

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http://www.paperboy.co.jp/recruit/important/

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ҰൠԽ ݕূՄ ૑ൃੑ Ξ΢τϓοτ ֎ʹग़͢͜ͱͰ಺෦ࣄ৘ ΛҰൠԽͰ͖Δ Ξ΢τϓοτ͞Εͳ͍͜ ͱʹ͸ݕূ͠Α͏͕ͳ͍ Ξ΢τϓοτͷॏͳΓ߹ ͍͕৽͍͠΋ͷΛੜΉ

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಺޲͖ ֎޲͖ ։ൃ؀ڥ੔උ ։ൃίϛϡχέʔγϣϯ ΞδϟΠϧ։ൃ αʔϏεϦϦʔε ϦʔϯελʔτΞοϓ ٕज़తΞ΢τϓοτ

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։ൃϓϩηεͷվળ http://www.ﬂickr.com/photos/betsyweber/6719452305/

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w/@hsbt ྡ੮ͷΔͼΓ͢ͱࢯ

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ϦʔϯελʔτΞοϓ εΫϥϜ 91ϓϥΫςΟε ։ൃϓϩηεͷࡾ૚ߏ଄

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http://www.ﬂickr.com/photos/goodoldsparky/2716165693/ ίϯηϓτΛݻΊΔ

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։ൃऀ ͷͨΊͷ ϖύϘձٞࣨ JEBOUJQPQ QBQFSCPZDP Ϧʔϯ ελʔτΞοϓ http://blog.kentarok.org/entry/2012/07/10/185408

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Build Measure Learn

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#.- #.- #.- #.- #.- #.- #VJME .FBTVSF -FBSO όοναΠζ

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αʔϏε։ൃΛՊֶ ࣮ݧͷΑ͏ʹԾઆͱͦ ͷݕূΛ௨ͯ͡ߦ͏͜ ͱ ·ͣ͸Ծઆݕূͷͨ Ίͷඞཁ࠷খݶͷ੡඼ Λ࡞Δ͜ͱ ԾઆݕূϧʔϓΛͰ ͖Δ͚ͩ଎͘ճ͢͜ͱ

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*OUSPEVDUJPOUP -FBO$BOWBT JEBOUJQPQ QBQFSCPZDP http://www.imi.ie/news-and-events/wp-content/uploads/2011/11/IMI-Ash-Maurya-Running-Lean-Presentation.pdf http://blog.kentarok.org/entry/2012/07/10/185408

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http://www.imi.ie/news-and-events/wp-content/uploads/2011/11/IMI-Ash-Maurya-Running-Lean-Presentation.pdf ໰୊ ސ٬ Ձ஋ ղܾ ޿ใ ऩೖ ࢧग़ ༏Ґ ݕূ

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http://d.hatena.ne.jp/nawoto/20111011/1318303619

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https://speakerdeck.com/u/nawoto/p/head-ﬁrst-inception-deck?slide=11

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http://www.ﬂickr.com/photos/cdm/2336025560/ νʔϜͰ։ൃ͢Δ

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ϢʔβετʔϦऩू

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ϖʔύʔϓϩτλΠϐϯά

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εϓϦϯτܭը ϓϩμΫτόοΫϩά εϓϦϯτόοΫϩά

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εϓϦϯτϨϏϡʔ

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https://speakerdeck.com/u/nawoto/p/head-ﬁrst-inception-deck?slide=11 ίʔυϨϏϡʔ

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ϖΞϓϩάϥϛϯά

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https://speakerdeck.com/u/hsbt/p/20120916-sappororubykaigi2012

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https://speakerdeck.com/u/hsbt/p/20120916-sappororubykaigi2012?slide=59 αΠΫϧλΠϜ Λ୹ॖ͢Δ

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http://www.slideshare.net/startuplessonslearned/2012-05-15-eric-ries-the-lean-startup-pwc-canada ੺ઢ͸։ൃऀʹͱͬͯಛʹॏཁͳࣄ߲

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ඇ3VCZͳձࣾͰ ͭͷํ๏ !LFOUBSP ࢓ࣄʹΛ ࣋ͪࠐΉͨΊͷ ܀ྛ݈ଠ࿠ QBQFSCPZDP

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ࣗಈԽ ࣮֬ੑ ҆શੑ ଎͍αΠΫϧ capistrano/webistrano chef/puppet tests, more tests continuous integration developer sandbox incremental deployment

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։ൃϓϩηε͕ ઃܭΛม͑Δ http://www.ﬂickr.com/photos/wolﬂawlibrary/4703808270/

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໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ ϢʔβετʔϦ

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໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ ໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ ໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ M V C

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package Controller::Cart; sub create { user->add_cart(params{book_id}); # ... } controllers package Controller::Follow; sub create { user->add_follow(params{user_id}); # ... } package Controller::Blog; sub create { user->add_post(params{text}); # ... } package Model::User; sub add_cart { # ... } sub add_follow { # ... } sub add_post { # ... } model Too many methods.

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ػೳͱ࣮૷ʹؔ ࿈ੑ͕ͳ͍ Կ͕໰୊͔ ετʔϦͷݟ͑ ͳ͍ઃܭ

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“Slim Controller, fat model”, but it’s too fat to be a model. ࢀߟ http://lab.ursm.jp/blog/2012/09/17/sapporo-rubykaigi-2012/ Կ͕໰୊͔

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DCI Data Context Interaction

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“We can translate use case scenarios into algorithms, just in time, as new senarios enter the business process. We encode these algorithms directly as role methods.”

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package Controller::Cart; sub create { my $res = Context::Cart->new( user, params{item_id}, )->call; # ... } controller package Context::Cart sub new { my ($class, $user, $item_id) = @_; $user->extend(“Role::Customer”); bless { user => $user, item_id => $item_id, }, $class; } sub call { my $self = shift; $self->{user}->add_cart( $self->{item_id} ); } { package Role::Customer; sub add_cart { ... } } context https://github.com/kentaro/Class-Extendable `$user->extend` is enabled by my experimental module, Class::Extendable.

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໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ ໾ׂ ͱͯ͠ ΰʔϧ Λୡ੒ ͍ͨ͠ɻͦΕ͸ ཧ༝ ͷͨΊͩ Data + Role context Data + Role ର ର

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ετʔϦʔࢦ޲ ͷઃܭ͕Մೳ DCIʹΑͬͯ Too fat model໰ ୊΋ղܾ

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։ൃϓϩηεͱ ੔߹͢Δઃܭɾ ࣮૷ख๏Λೖख DCIʹΑͬͯ

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·ͱΊ

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Ξ΢τϓοτॏཁ ·ͱΊ ։ൃऀͷΞ΢τϓοτΛ ߴΊΔ ։ൃϓϩηεΛվળ͢Δ DCI΋͋ΔΑ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠