Rails 4: before_filter vs. before_action
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Inrails>4.0.0generatorscreatesCRUDoperationswithbefore_actionnotbefore_filter.Itseemstodothesamething.Sowhat'sthediffere......
ruby/ruby on rails memory leak detection
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwroteasmallwebappusingrubyonrails,itsmainpurposeistoupload,store,anddisplayresultsfromxml(filescanbeuptoseveralMB......
How can I download a file from a URL and save it i
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhaveaURLtoanimagewhichiwanttosavelocally,sothatIcanusePapercliptoproduceathumbnailformyapplication.What'sthebest......
Pass variables to Ruby script via command line
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'veinstalledRubyInstalleronWindowsandI'mrunningIMAPSyncbutIneedtouseittosynchundredsofaccounts.IfIcouldpasstheseva......
When should I use Struct vs. OpenStruct?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ingeneral,whataretheadvantagesanddisadvantagesofusinganOpenStructascomparedtoaStruct?Whattypeofgeneraluse-caseswouldfi......
What does __FILE__ mean in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IseethisallthetimeinRuby: requireFile.dirname(__FILE__)+"/../../config/environment" Whatdoes__FILE__mean? 回答1: Itis......
Difference between map and collect in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhaveGoogledthisandgotpatchy/contradictoryopinions-isthereactuallyanydifferencebetweendoingamapanddoingacollectonan......
Colorized Ruby output [closed]
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Isthereagemtoperformbackgroundandforegroundtextcolorizationforoutputinterminal? Iremember,whenprogrammingPascalwealluse......
What's the best way to model recurring events
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mbuildingagroupcalendarapplicationthatneedstosupportrecurringevents,butallthesolutionsI'vecomeupwithtohandletheseeve......
`&:views_count` in `Post.published.collect(&:views
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Thisquestionalreadyhasananswerhere: Whatdoesmap(&:name)meaninRuby? ......
How does “(1..4).inject(&:+)” work in Ruby
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IfindthiscodeinRubytobeprettyintriguing (1..4).inject(&:+) Ok,Iknowwhatinjectdoes,andIknowthiscodeisbasicallyequival......
Ruby obfuscator
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Istherearubyobfuscatoror"compiler"? 回答1: Thereareafewoptions,likeRubyScript2ExeorAllInOneRuby.However,allobfuscatorso......
cannot load such file — script/rails : Getting thi
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IamgettingfollowingerrorwhileremotedebuggingthroughRubyMineIDE. $bundleexecrdebug-ide--port1234--script/railsserver FastD......
Why can I refer to a variable outside of an if/unl
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Whydoesthefollowingcodenotthrowanerror? iffalse x=0 end x#=>nil Whereasthefollowingdoesthrowanerror: y#NameErro......
PG::Error: SELECT DISTINCT, ORDER BY expressions m
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: ActionView::Template::Error(PG::Error:ERROR:forSELECTDISTINCT,ORDERBYexpressionsmustappearinselectlist I'mcreatinganeve......
Custom authentication strategy for devise
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ineedtowriteacustomauthenticationstrategyforhttps://github.com/plataformatec/devisebuttheredoesn'tseemtobeanydocs.How'sit......
Is there a reason that we cannot iterate on “rever
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: ItriedtoiteratebackwardswithusingaRangeandeach: (4..0).eachdo|i| putsi end ==>4..0 Iterationthrough0..4writesthenumbe......
How do you configure WEBrick to use SSL in Rails?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: PriortoRails3,youcouldmodifythescript/serverfiletoaddinSSLparametersandtelltheservercommandtousetheHTTPSversionofWE......
Paginating an Array in Ruby with will_paginate
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ihaveanarray@level1whichlookslikethis: [[3.0,4,2],[2.0,48,3],[2.1,56,4],............] Iwanttoapplypaginationonthis......
Difference between '..' (double-dot) and &
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'vejuststartedlearningRubyandRubyonRailsandcameacrossvalidationcodethatusesranges: validates_inclusion_of:age,:in=>21........
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