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• select for update with ruby oci8

  - by ash34

  how do I do a 'select for update' and then 'update' the row using ruby oci8. I have two fields counter1 and counter2 in a table which has only 1 record. I want to select the values from this table and then increment them by locking the row using select for update. thanks.

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• how to add unique to a table column in ruby on rails

  - by ohana

  hi, I have a table with some columns, now i need to modify one column to make it unique(no duplicate values), how can i do that in ruby on rails?

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• Arbitrary precision arithmetic with Ruby

  - by macek

  How the heck does Ruby do this? Does Jörg or anyone else know what's happening behind the scenes? irb(main):001:0> 999**999 368063488259223267894700840060521865838338232037353204655959621437025609300472231530103873614505175218691345257589896391130393189447969771645832382192366076536631132001776175977932178658703660778465765811830827876982014124022948671975678131724958064427949902810498973271030787716781467419524180040734398996952930832508934116945966120176735120823151959779536852290090377452502236990839453416790640456116471139751546750048602189291028640970574762600185950226138244530187489211615864021135312077912018844630780307462205252807737757672094320692373101032517459518497524015120165166724189816766397247824175394802028228160027100623998873667435799073054618906855460488351426611310634023489044291860510352301912426608488807462312126590206830413782664554260411266378866626653755763627796569082931785645600816236891168141774993267488171702172191072731069216881668294625679492696148976999868715671440874206427212056717373099639711168901197440416590226524192782842896415414611688187391232048327738965820265934093108172054875188246591760877131657895633586576611857277011782497943522945011248430439201297015119468730712364007639373910811953430309476832453230123996750235710787086641070310288725389595138936784715274150426495416196669832679980253436807864187160054589045664027158817958549374490512399055448819148487049363674611664609890030088549591992466360050042566270348330911795487647045949301286614658650071299695652245266080672989921799342509291635330827874264789587306974472327718704306352445925996155619153783913237212716010410294999877569745287353422903443387562746452522860420416689019732913798073773281533570910205207767157128174184873357050830752777900041943256738499067821488421053870869022738698816059810579221002560882999884763252161747566893835178558961142349304466506402373556318707175710866983035313122068321102457824112014969387225476259342872866363550383840720010832906695360553556647545295849966279980830561242960013654529514995113584909050813015198928283202189194615501403435553060147713139766323195743324848047347575473228198492343231496580885057330510949058490527738662697480293583612233134502078182014347192522391449087738579081585795613547198599661273567662441490401862839817822686573112998663038868314974259766039340894024308383451039874674061160538242392803580758232755749310843694194787991556647907091849600704712003371103926967137408125713631396699343733288014254084819379380555174777020843568689927348949484201042595271932630685747613835385434424807024615161848223715989797178155169951121052285149157137697718850449708843330475301440373094611119631361702936342263219382793996895988331701890693689862459020775599439506870005130750427949747071390095256759203426671803377068109744629909769176319526837824364926844730545524646494321826241925107158040561607706364484910978348669388142016838792902926158979355432483611517588605967745393958061959024834251565197963477521095821435651996730128376734574843289089682710350244222290017891280419782767803785277960834729869249991658417000499998999

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• Ruby 1.9 Ramaze App Failing with "Illegal instruction"

  - by pkulak

  I've got an app that I'm trying to get working again after wiping my system and installing Snow Leopard. I installed Ruby 1.9 from Macports (now a later version) and the dev server starts up just fine, but then dies on the first request, only telling me "Illegal instruction". I have no idea what's causing this or even how to go about debugging it. Does anyone have any ideas?

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• Ruby on Rails form page caching including authenticity_token

  - by jacob

  I have a simple Ruby on Rails form which includes an authenticity_token. Unfortunatly, I missed that when you page cache this page then the Authenticity Token becomes invalid. I'm glad I figured it out however. How do you solve caching in such a case?

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• Retaining Form data after POST in Ruby on Rails

  - by Shreyas Satish

  Hai I need to retain the Form data submitted in one view to be used in another view. I'll be using POST method to submit the data. Is there anyway I can retrieve data from the POST method in Ruby, like in PHP I would use $title=$_POST["title"]. Any ideas? Thanks and Cheers !

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• ruby keyword arguments of method

  - by Yang

  How can I declare a method with keyword arguments just like rails do. some examples may be Person.find(:all, :conditions => "..."). How can I use symbols to create methods similar to the above? I am very new to ruby. Thanks in advance!

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• Ruby background service

  - by FancyDancy

  I have a TCPclient written on Ruby. I want to use it in background. Currently it has a loop: loop do end So i can run a client, and it works forever. Is there a way to run in as a service, and write a pid to file, then i'll able to kill that process by pid?

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• Reading in gzipped data from S3 in Ruby

  - by Evan Zamir

  My company has data messages (json) stored in gzipped files on Amazon S3. I want to use Ruby to iterate through the files and do some analytics. I started to use the 'aws/s3' gem, and get get each file as an object: #<AWS::S3::S3Object:0x4xxx4760 '/my.company.archive/data/msg/20131030093336.json.gz'> But once I have this object, I do not know how to unzip it or even access the data inside of it.

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• Why is Ruby on Rails lacking on documentation?

  - by Delirium tremens

  Configuring the PHP debuggers was so hard that I can't even imagine myself using the Rails documentation by blogging. The problem looks easy to solve: write the documenation, so why doesn't anyone do it?

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• Check if Ruby object is a Boolean

  - by viatropos

  Can't seem to find how to check if an object is a boolean easily. Is there something like this in Ruby? true.is_a?(Boolean) false.is_a?(Boolean) Right now I'm doing this and would like to shorten it: some_var = rand(1) == 1 ? true : false (some_var.is_a?(TrueClass) || some_var.is_a?(FalseClass))

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• How to validate SSL certificate chain in ruby with net/http

  - by maledictus

  How can I verify the certificates of a site like https://processing.ukash.com/ in ruby with net/http? https = Net::HTTP.new('processing.ukash.com', 443) https.use_ssl = true https.verify_mode = OpenSSL::SSL::VERIFY_NONE Works so far, but how do I verify that it's the right cert now? I saved the certificate from within firefox, but the resulting .pem file has many certificates in it and net/http doesn't seem to like it.

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• Ruby string compare regardless of string case

  - by Steven

  Hi I need to check for "Apple" = "Apple" TRUE "Apple" = "APPLE" TRUE "Apple" = "Apple1" FALSE in ruby I need a string comparison but for the check to not be case sensitive. thks

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• ruby language syntax(how platform_info variable is used

  - by amit singh tomar

  class EncodeDemoTest < Test #inheritance in ruby def setup(platform_info, logdir) @telnet_ip = platform_info["telnet_ip"] @telnet_login = platform_info["telnet_login"] @telnet_password = nil @filesys_path = platform_info["filesys_path"] @host_files_path = platform_info["host_files_path"] @host_machine_ip = platform_info["host_machine_ip"] @linuxserver_ip = platform_info["linuxserver_ip"] @target_prompt = platform_info["target_prompt"] @demo_execuable_path = platform_info["demo_execuable_path"] @mts4ea_machine_ip = platform_info["mts4ea_machine_ip"] @mts4ea_files_path = platform_info["mts4ea_files_path"] @ffmpeg_machine_ip = platform_info["ffmpeg_machine_ip"] @ffmpeg_service_machine_ip = platform_info["ffmpeg_service_machine_ip"] @ffmpeg_files_path = platform_info["ffmpeg_files_path"] @ffmpeg_login = platform_info["ffmpeg_login"] @ffmpeg_password = platform_info["ffmpeg_password"] @ffmpeg_prompt = platform_info["ffmpeg_prompt"] @platform_info = platform_info could anyone tell me how argument passed in setup method .means what does that syntax means platform["telnet_ip"]

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• how to escape a string before insert or update in Ruby

  - by ywenbo

  Hi guy, In ruby ActiveRecord doesn't provide dynamic binding for update and insert sqls, of course i can use raw sql, but that need maintain connection, so i want to know if there is simpler way to escape update or insert sql before executing like code below: ActiveRecord::Base.connection.insert(sql) i think i can write code by gsub, but i know if there has been a ready method to do it. thank you very much, and Merry Christmas for you all.

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• how do I base encode a binary file (JPG) in ruby

  - by Angela

  I have a binary files which needs to be sent as a string to a third-party web-service. Turns out it requires that it needs to be base64 encoded. In ruby I use the following: body = body << IO.read("#{@postalcard.postalimage.path}") body is a strong which conists of a bunch of strings as parameters. So...how do I base64 encode it into this string? Thanks.

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• Package ruby to standalone OS X App?

  - by bunnyBEARZ

  I know python has a py2app, I was wondering if Ruby has anything like that. I know there is OCRA for windows, but what about for OS X?

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• ldap integeration in ruby

  - by user163352

  I'm working on integrating ruby with ldap. And it's working fine. Created test.com in ldap and I can bind with it successfully. Then I created a new organizational unit company. Under company there are some users Now I want to bind with the users(authentication) under company organizational unit. I can access the user using Filter.eq But I want to bind with the users. Suggestions plz..

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• ruby on rails ferret search:.only 10 records are getting from table

  - by jissy

  ruby on rails ferret search:.only 10 records are getting from table.For pagination i did it ,but only 10 records are getting even though there exists more records satisfying the search condition.if any of you know how to solve this,please reply. no limit is givenf it is not a ferret search all records are getting from table , and pagination is working the code is: @search_sd_ticket_result=ServiceDeskTicket.find_with_ferret(params[:sd_ticket][:servicedeskticket]).paginate :per_page =5, :page=params[:page]

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• Calling Bash Commands From Ruby

  - by CodingWithoutComments

  How do I call console/bash commands from inside of a Ruby Program? Also, how do I get output from these commands back into my program?

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• ruby - find and replace in a string for commonly used street suffix

  - by go minimal

  The post office actually publishes a list of commonly used street suffixes in addresses: http://www.usps.com/ncsc/lookups/abbr_suffix.txt I want to take this list and make a ruby function that takes a string, takes the last word ("183 main strt".split[' '].last) and if it matches any of the commonly used street suffixes ("strt"), replace it with the official Postal Service Standard Suffix ("st"). Is there a better way to approach this than a massive str.sub.sub.sub.sub.sub?

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• installing a ruby gem with a native extension

  - by ajstack

  I want to install a ruby gem which tries to build a native extension. The gem in this case is nokogiri. If I do gem install nokogiri, the native extension dynamically links against libxml, libxslt libs. I want to statically link against those libs. How should I go about this?

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• Way to partialy match a Ruby string using Regexp

  - by Fabiano PS

  I'm working on 2 cases: assume I have those var: a = "hello" b = "hello-SP" b = "not_hello" 1 - Any partial matches I want to accept any string that has the var a inside, so b and c would match. 2 - Patterned match I want to match a string that has a inside, followed by '-', so b would match, c does not. I am having problem, because I always used the syntax /expression/ to define Regexp, so how dinamicaly define an RegExp on Ruby??

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• suggestion box in ruby on rails

  - by ohana

  hi, anyone know how to create a suggestion box in ruby on rails? all the materials i found so far are about observe some text field and update some list in other , not related to suggestion box... Thanks!

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• What's the equivalent to "method reference" in Ruby

  - by Oscar Reyes

  for instance in python it is possible to assign a method to a variable: class MyClass def myMethod(self): return "Hi" x = MyClass() method = x.myMethod print method() # prints Hi I know this should be possible in Ruby, but I don't know what's the syntax.

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