240
收录了14053篇文章 ·14922个问题 · 0人关注
0

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......

0

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......

0

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":......

0

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......

0

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......

0

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......

0

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......

0

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......

0

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......

0

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...

0

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......

0

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......

0

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.......

0

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",......

0

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......

0

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::......

0

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......

0

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......

0

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......

0

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......