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Short intro to Rails4 @TakashiChi_ba Thursday, February 28, 13

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• @TakashiChi_ba • Wondershake, Inc. (2010/10~) • Ruby (2011/10~) Thursday, February 28, 13

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• Ruby 1.8ܥͷαϙʔτऴྃ • ىಈߴ଎Խ schema_cache.dump, spring • ηΩϡϦςΟରࡦ strong_paramaters Hello, Rails4 Thursday, February 28, 13

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• activerecord-deprecated_finders • activeresource • activerecord-session_store • rails-observers ͳͲ ෛ࠴͸Gem΁ Thursday, February 28, 13

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ActiveRecord/ ActiveModel Thursday, February 28, 13

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NOT Ebisu.where("hoge <> ?", 'meguro') Ebisu.where.not(name: 'meguro') amatsuda͞Μ֨޷͍͍ Thursday, February 28, 13

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scope͸lambdaͰ default_scope where(created_at: Time.now..(Time.now + 1.day)) default_scope { where(created_at: Time.now..(Time.now + 1.day)) } Thursday, February 28, 13

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Fat Model໰୊ Thursday, February 28, 13

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ϏδωεϩδοΫ • controllerʹॻ͘ͷ͸ͳ͍ͳ͍ʂ • modelʹॻ͘ͱtoo fat model • lib/͔… • service૚ʁ τϥϯβΫγϣϯεΫϦϓτʁ Thursday, February 28, 13

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ϏδωεϩδοΫ • σϑΥϧτͰautoload͞ΕΔ ҎԼͷσΟϨΫτϦ͕௥Ճ app/models/concerns/ app/controllers/concerns/ Thursday, February 28, 13

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ҠߦΛݟਾ͑Δ Thursday, February 28, 13

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ҠߦΛݟਾ͑Δ • beta1͸·͖͍ͩͭʁ gem ‘strong_parameters’ routes.rbͰ͸matchͰ͸ͳ͘get/post Thursday, February 28, 13

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ͱ͸͍͑ • 37signalsͰ͸͢ͰʹBasecamp BreezeͰ rails4͕࢖ΘΕ͍ͯΔͱʂ (ruby2.0͔ruby1.9.3͔͸஌Βͳ͍…) Thursday, February 28, 13

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Ruby2.0 rvm get stable rvm pkg install openssl rvm install 2.0.0 rvm use 2.0.0 Thursday, February 28, 13

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Rails4b1 gem install rails --version 4.0.0.beta1 --no-ri --no-rdoc rails new rails4demo rails s Thursday, February 28, 13

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ࢀߟ • WEB+DB vol.73 • Rails 4.0: Beta 1 released! http://weblog.rubyonrails.org/2013/2/25/ Rails-4-0-beta1/ Thursday, February 28, 13