Ruby 1.9 If I have a shebang pointing to ruby, why
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'musingUbuntu.I'mtryingtorunarubyfiletodo.rb Iaddedthisshebangastheveryfirstlineofthefile #!/usr/b......
Problems while making a generic model in Ruby on R
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'mtryingtomakea"genericmodel"soitcanconnecttoanytableofanydatabase.First,Imadethisclasswhichconne......
How to validate this hash parameter?
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: HowdoIwritethecorrectparamsvalidationsforthishashparameter: { "files":{ "main.c":{ "contents":......
calling module method into another module 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: FIlemodule.rb moduleCardExpiry defcheck_expiryvalue returntrue end end fileinclude.rb #raiseFile.dirna......
Output the source of a ruby method
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: SayImakeaclasswithamethodinit. classA deftest puts'test' end end Iwanttoknowwhatgoesoninsid......
Strong parameters with nested hash
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: Ihavethefollowingparamsandcannotgetthestrongparameterstowork. Here'smybasiccode,runnableintheRailsco......
How to use the “self” keyword 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: RegardingthekeywordselfinRails,Iknowthatthekeywordreferstoaninstanceoftheclassitself.Forexample,ins......
Streaming CSV Download from Rails 3.2 app
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: IamdesperatetogetastreamingCSVdownloadworkinginmyRails3.2.2app. Ihavetriedthe'csv_builder'gem(https......
How to use ruby to write individual records to a R
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: Currently,wehaveascriptthatparsesdataanduploadsitonerecordatatimetoamysqldatabase.Recently,wedecide......
Dynamic languages for embedded devices? [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: Closed.Thisquestio...
Good forms helpers for Sinatra?
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: IamstartingtodoformsandamlookingforformhelpersinSinatra. Sinatradoesn'tseemtohavebuilt-informshelpe......
Is it possible to do a before_action in Ruby (like
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: Isitpossibletocallabefore_actionbeforesomespecifiedmethodlikeinrails? classCalculator before_action{ra......
Error generating source map - grunt and sass confi
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: Iamtryingtousesasswithgrunt.Ihaveinstalledruby,sassandgruntinmypath. Theversionsare, node:0.10.......
Rack: How do you store the URL as a variable?
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: IamwritingasimplestaticRackapp.Checkouttheconfig.rucodebelow: useRack::Static, :urls=>["/elements",......
Nokogiri in Ruby 2.0
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: WhenIrequire'nokogiri'inRuby2.0,ithasaerror `require':cannotloadsuchfile--nokogiri/2.0/nokogiri(LoadErr......
JPG to PNG using RMagick
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'mtryingtoconvertafetchedimagefromJPGtoPNGusingRMagick,resizeitandthenstoreitonS3: thumb=Magick::......
How to calculate number of chars common to two str
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: Howwouldyoucalculatetheintersectionofcharactersbetweentwostrings? Forexample(assumingwewouldhaveamethod......
ERROR: Failed to build gem native extension on Win
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'mgettingthebelowerrorwhileinstalling'redcarpet'gem.Itgotinstalledwithoutissueonmyfriendsmachinethough......
How to find out what is intercepting 'method_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: UsingRuby1.8.6/Rails2.3.2 IamnoticingthatanymethodcalledonanyofmyActiveRecordmodelclassesisreturning......
How to handle 404 errors with Ruby HTTP::Net?
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'mtryingtoparsewebpagesbutIsometimesget404errors.Here'sthecodeIusetogetthewebpage: result=Net::H......