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New Features in Rails 4.2
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murajun1978
February 21, 2015
Programming
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New Features in Rails 4.2
murajun1978
February 21, 2015
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Transcript
New Features in Rails 4.2 ୈ65ճ Rubyؔ ษڧձ
about me ΉΒ͡ΎΜ murajun1978 Ruby <3 <3 <3
Shinosaka.rb #13 http://shinosakarb.doorkeeper.jp/events/19518 2 / 28
͢͜ͱ • Active Job • Global ID • Adequate Record
• Web Console • Foreign key support • Default Host for rails server
Active Job
Active Jobͱʁ queueing backends Active Job API Job adapter
Job࡞ $ rails generate job job_name
ಛఆͷΩϡʔͷJob࡞ $ rails generate job job_name —queue queue_name
JobΛΩϡʔʹొ
JobͷεέδϡʔϦϯά
ΞμϓλΛมߋ
ར༻Ͱ͖ΔΞμϓλ http://api.rubyonrails.org/classes/ActiveJob/ QueueAdapters.html
ίʔϧόοΫ • before_enqueue • around_enqueue • after_enqueue • before_perform •
around_perform • after_perform
Ωϡʔʹొ͞ΕΔ࣌ʹ࣮ߦ • before_enqueue • around_enqueue • after_enqueue
Job͕࣮ߦ͞ΕΔ࣌ʹ࣮ߦ • before_perform • around_perform • after_perform
ྫ֎ॲཧ
ඇಉظͰϝʔϧૹ৴
Global ID
URIʹΑΔϞσϧࢀর https://github.com/rails/globalid
Global IDͷੜ pry(main)> gid = post.to_gid => #<GlobalID:0x007f8ddfdb79e0 @uri=#<URI::GID gid://blog/Post/1>>
URI͕ੜ͞Εͨ ActiveRecordΦϒδΣΫτ
Global ID͔Β ModelͷใΛऔಘͯ͠ΈΔ gid.app #=> "blog" ɾΞϓϦέʔγϣϯ໊ ɾϞσϧ໊ gid.model_name #=>
"Post" ɾϞσϧΫϥε gid.model_class #=> Post(id: integer, title: string, published_at: datetime …) ɾID gid.model_id #=> "1"
Global ID͔ΒΦϒδΣΫτऔಘ globalid/lib/global_id/locator.rb GlobalID::Locator.locate gid => #<Post id: 1, title:
"Rubyؔ" ...>
Adequate Record
http://tenderlovemaking.com/2014/02/19/adequaterecord-pro- like-activerecord.html
ActiveRecord 2x faster ƅшƅ)ʂ
Rails 4.1 SELECT "posts".* FROM "posts" WHERE "posts"."id" = 1
LIMIT 1 SELECT "posts".* FROM "posts" WHERE "posts"."id" = 2 LIMIT 1 ݅ͷ͕มΘ͚ͬͨͩͳͷʹɺΫΤϦΩϟογϡ͞Εͯͳ͍
Rails 4.2 SELECT "posts".* FROM "posts" WHERE "posts"."id" = ?
LIMIT 1 [["id", 1]] SELECT "posts".* FROM "posts" WHERE "posts"."id" = ? LIMIT 1 [["id", 2]] Ωϟογϡ͞ΕͨΫΤϦʹΛ͍ͯ͠Δ
αϙʔτ͞Ε͍ͯΔͷ • find(id) • find_by(name: name) • find_by_name(name)
Ωϟογϡ͕ద༻͞Εͳ͍߹ • ϞσϧʹσϑΥϧτείʔϓ͕ઃఆ͞Ε͍ͯΔ • ϞσϧͰ୯Ұςʔϒϧܧঝ (STI) ͕༻͞Ε͍ͯΔ • PolymorphicΛͬͯΔ •
findͰ idͷྻΛ͢߹ • find(1,2) or find([1,2])
Web Console
ΤϥʔϖʔδͰσόοά
ಛఆͷϖʔδͰσόοά
ࢦఆIP͔ΒͷΈར༻͢Δ
Foreign Key Support
ϚΠάϨʔγϣϯͰ֎෦Ωʔ ͷՃɺআΛαϙʔτ
αϙʔτ͞ΕΔΞμϓλ • mysql • mysql2 • postgresql
Default Host for rails server
σϑΥϧτͷϗετ͕0.0.0.0͔Β localhost(127.0.0.1)ʹมߋ ֎෦PC͔ΒΞΫηε͢Δ߹ rails server -b 0.0.0.0
·ͱΊ • Active JobόοΫΤϯυͷΩϡʔγεςϜʹ͔͔ΘΒ ͣɺಉ͡هड़Ͱॻ͚Δ͕ྑ͍ • ܁Γฦ͢όονॲཧͳͲɺsidetipsidekiq-schedulerΛ ͏ͱྑ͍͔ • Global
IDActive JobҎ֎Ͱ͑ͦ͏ • Ruby on Rails 4.2 ϦϦʔεϊʔτಡ͏ • RailsͷContributorsʹײँ :)
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠