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• Why must I use local path rather than 'svn://' with SVN bindings?

  - by Chad Johnson

  I'm using the Ruby SVN bindings built with SWIG. Here's a little tutorial. When I do this @repository = Svn::Repos.open('/path/to/repository') I can access the repository fine. But when I do this @repository = Svn::Repos.open('svn://localhost/some/path') It fails with /SourceCache/subversion/subversion-35/subversion/subversion/libsvn_subr/io.c:2710: 2: Can't open file 'svn://localhost/format': No such file or directory When I do this from the command line, I do get output svn ls svn://localhost/some/path Any ideas why I can't use the svn:// protocol?

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• Postgres database to mysql database conversion

  - by sangeethkumar n

  Is there any ruby script for converting postgresql database to mysql database. I have secrhed lot many sites but i couldnt get that. Please suggest me

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• Check directory for files, retrieve first file

  - by Lowgain

  I'm writing a small ruby daemon that I am hoping will do the following: Check if a specific directory has files (in this case, .yml files) If so, take the first file (numerically sorted preferrably), and parse into a hash Do a 'yield', with this hash as the argument What I have right now is like: loop do get_next_in_queue { |s| THINGS } end def get_next_in_queue queue_dir = Dir[File.dirname(__FILE__)+'/../queue'] info = YAML::load_file(queue_dir[0]) #not sure if this works or not yield info end I'd like to make the yield conditional if possible, so it only happens if a file is actually found. Thanks!

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• Is it worth learning C# or Java in 2010

  - by Dhawal

  We are in web era standalone applications are almost gone everyone wants their internet application to run inside browser, programming languages like Ruby, Python and scala are becoming more and more mainstream. Sometimes I wonder what these programming language offer which make them top choice of IT companies, if I plan to become a freelance web developer is it worth learning C# or Java. I read beginner's book for both of them, but to master any of them require some time investment.

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• StringScanner scanning IO instead of a string

  - by jes5199

  I've got a parser written using ruby's standard StringScanner. It would be nice if I could use it on streaming files. Is there an equivalent to StringScanner that doesn't require me to load the whole string into memory?

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• rake does not returning anything

  - by CHID

  Hi, I jus created a rails application. I created a model using ruby script/generate model Article next i edited the my articles.rb file by adding these lines in self.up method def self.up create_table :articles do |t| t.string :title t.text :body t.string :published_at t.timestamps end end Now i ran rake db:migrate . But migrate does not work, it simply does no print anything. Anyone knows where i am going wrong?

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• require file use dirname(__FILE__) or just requre filename?

  - by user285020

  I have a file at lib directory in my rails project. like this a (directory) a1 a2 a.rb when I in a.rb require a1. require 'a/a1' it will warn me /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- a/a1 (MissingSourceFile) but use dirname(FILE), it work. require File.dirname(__FILE__) + '/a/a1 why?

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• Testing value of each related model

  - by Novapax

  Does Ruby (or Rails) provide an easy way to accomplish the following: if @author.articles.each(:published == true) puts "all articles of this author are published" end I think the example speaks for itself.

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• Sinatra programatically get port and other information about service

  - by Poul

  I have a sinatra service foo.rb To run it I on a different port I would type "ruby foo.rb -p 5000". While the program is running I would like to be able to get the port (in this case 5000) and other information. Is there a way to get info like this while the app is running? Thanks

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• Looping through an array while adding the data to a string and finally returning it, a faster way?

  - by Hadi

  Getting the customer's to_s method by looping through Is there a Ruby idiom to write the code in 1 line (or shorter than 3 lines of code)? def method string = "" @customers.each { |customer| string += customer.to_s + "\n" } string end

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• why the sexp has array in the end

  - by dorelal

  RubyParser.new.parse "1+1" s(:call, s(:lit, 1), :+, s(:array, s(:lit, 1))) Above code is from this link Why there is array after + in the Sexp. I am just trying to learn ruby parser and the whole AST thing. I have been programming for a while but have no formal education in computer science. So do point to good article which explains AST etc. Please no dragon book. I tried couple of times but couldn't understand much of that book

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• cattr_accessor outside of rails

  - by JP

  I'm trying to use the google_search ruby library (code follows) but it complains that 'cattr_accessor is an undefined method' - any ideas why this might be or how I could fix it? require 'rubygems' require 'google_search' GoogleSearch.web :q => "pink floyd"

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• Rails or Sinatra? which is good to start learning, for a php programmer?

  - by user187809

  I've been working far too long with php and getting bored with it. I also want to learn a new language. I've been using Ruby and like it. I've to decide between Rails and Sinatra, which one would you recommend? Is it true that Sinatra can't be used to build complex apps, and its only for simple apps?

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• validation of special characters

  - by jpallavi

  i want to put validation in ruby on rails that my username should not contain special characters like !@#$%^*()_-+=/<?:'";. Please tell me how can i implement it in my code.

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• Restricting Edit and Delete

  - by phleet

  I want to be able to edit and delete resources myself, but not allow users of the application to do so. Is there an easy way of doing this in Rails? An incomplete solution would be just to remove the "delete" and "edit" buttons from the index view, but that doesn't disable their ability to do so via direct HTTP requests. Running Rails 2.2.2 and ruby 1.8.7

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• Is SQLite a good solution to backup a postgres or mysql database ?

  - by clmntlxndr

  Hi all ! I'm using the Sequel (Taps) ruby gem for a remote backup of my production database (PostgreSQL). I wonder if storing that backup with SQLite is a good solution. What's your feeling ? Thx !

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• How to create an after_save callback on runtime

  - by dorelal

  I am using ruby on rails 2.3.5 . I have user instance. On run time depending on certain conditions I want to add an after_save callback just for this instance. The other issue is that this after_save should take a block or a proc as parameter. What I want is something like this. This is psuedo code. user = User.first proc = Proc.new do puts 'this is foo' end user.after_save proc

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• Rails 3 and encrypted cookies with IE9

  - by user1832686

  I am using encrypted cookies to pass data to my rails app. Once these cookies get set, they are being passed just fine to Chrome, Firefox, Safari (iOS and OSX version), etc. However, the cookie isn't being passed back on Win7/IE9. I'm using Ruby 1.9 and Rails 3, and using the cookies.permanent.encrypted method of setting the cookie. E.g: cookies.permanent.encrypted[:some_data] = object.some_data Any ideas about what's going on?

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• is there mysql corelib site for building queries?

  - by mjeason

  Maybe i have the wrong context but... Is there a corelib site for mysql like http://corelib.rubyonrails.org/ for ruby on rails RoR? Would be nice to have 1 stop shop. thx.

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• What gems/plugins can be used for Unsubscribe support in Rails?

  - by user550575

  What gems/plugins that make it easy to add a tamper-resistant unsubscribe link to the bottom of the email a user can click to prevent receiving email those types of emails? The only thing I could find was http://kevinlochner.com/handling-unsubscribe-requests-in-ruby-on-rail which works but is somewhat unsophisticated and lacks features such as which type of emails to unsubscribe from. It also doesnt include the mechanism for users to unsubscribe. We using ActionMailer.

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• using yield in C# like I would in Ruby

  - by Sarah Vessels

  Besides just using yield for iterators in Ruby, I also use it to pass control briefly back to the caller before resuming control in the called method. What I want to do in C# is similar. In a test class, I want to get a connection instance, create another variable instance that uses that connection, then pass the variable to the calling method so it can be fiddled with. I then want control to return to the called method so that the connection can be disposed. I guess I'm wanting a block/closure like in Ruby. Here's the general idea: private static MyThing getThing() { using (var connection = new Connection()) { yield return new MyThing(connection); } } [TestMethod] public void MyTest1() { // call getThing(), use yielded MyThing, control returns to getThing() // for disposal } [TestMethod] public void MyTest2() { // call getThing(), use yielded MyThing, control returns to getThing() // for disposal } ... This doesn't work in C#; ReSharper tells me that the body of getThing cannot be an iterator block because MyThing is not an iterator interface type. That's definitely true, but I don't want to iterate through some list. I'm guessing I shouldn't use yield if I'm not working with iterators. Any idea how I can achieve this block/closure thing in C# so I don't have to wrap my code in MyTest1, MyTest2, ... with the code in getThing()'s body?

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• Rmagick on BitNami not working

  - by Steven

  I am running a rails app on BitNami rubystack, and try to upload picture using file_column i get this error, check below: LoadError (998: Invalid access to memory location. - C:/Program Files (x86)/BitNami RubyStack/ruby/lib/ruby/gems/1.8/gems/rmagick-2.9.0-x86-mswin32/ ext/RMagick2.so): C:/Program Files (x86)/BitNami RubyStack/ruby/lib/ruby/gems/1.8/gems/rmagick-2.9.0-x86-mswin32/ext/RMagick2.so C:/Program Files (x86)/BitNami RubyStack/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require' C:/Program Files (x86)/BitNami RubyStack/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:innew_constants_in

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• Apache SSO through Kerberos using Machine Account

  - by watkipet

  I'm attempting to get Apache on Ubuntu 12.04 to authenticate users via Kerberos SSO to a Windows 2008 Active Directory server. Here are a few things that make my situation different: I don't have administrative access to the Windows Server (nor will I ever have access). I also cannot have any changes to the server made on my behalf. I've joined Ubuntu server to the Active Directory using PBIS open. Users can log into the Ubuntu server using their AD credentials. kinit also works fine for each user. Since I can't change AD (except for adding new machines and SPNs), I cannot add a service account for Apache on Ubuntu. Since I can't add I service account, I have to use the machine keytab (/etc/krb5.keytab), or at least use the machine password in another keytab. Right now I'm using the machine keytab and giving Apache readonly access (bad idea, I know). I've already added the SPN using net ads keytab add HTTP -U Since I'm using Ubuntu 12.04, the only encoding types that get added during "net ads keytab add" are arcfour-hmac, des-cbc-crc, and des-cbc-md5. PBIS adds the AES encoding types to the host and cifs principals when it joins the domain, but I have yet to get "net ads keytab add" to do this. ktpass and setspn are out of the question because of #1 above. I've configured (for Kerberos SSO) and tested both IE 8 Firefox. I'm using the following configuration in my Apache site config: <Location /secured> AuthType Kerberos AuthName "Kerberos Login" KrbMethodNegotiate On KrbMethodK5Passwd On KrbAuthRealms DOMAIN.COM Krb5KeyTab /etc/krb5.keytab KrbLocalUserMapping On require valid-user </Location> When Firefox tries to connect get the following in Apache's error.log (LogLevel debug): [Wed Oct 23 13:48:31 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 13:48:31 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(994): [client 192.168.0.2] Using HTTP/[email protected] as server principal for password verification [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(698): [client 192.168.0.2] Trying to get TGT for user [email protected] [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(609): [client 192.168.0.2] Trying to verify authenticity of KDC using principal HTTP/[email protected] [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(652): [client 192.168.0.2] krb5_rd_req() failed when verifying KDC [Wed Oct 23 13:48:37 2013] [error] [client 192.168.0.2] failed to verify krb5 credentials: Decrypt integrity check failed [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(1073): [client 192.168.0.2] kerb_authenticate_user_krb5pwd ret=401 user=(NULL) authtype=(NULL) [Wed Oct 23 13:48:37 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured When IE 8 tries to connect I get: [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 14:03:30 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1240): [client 192.168.0.2] Acquiring creds for HTTP@apache_server [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1385): [client 192.168.0.2] Verifying client data using KRB5 GSS-API [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1401): [client 192.168.0.2] Client didn't delegate us their credential [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1420): [client 192.168.0.2] GSS-API token of length 9 bytes will be sent back [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1101): [client 192.168.0.2] GSS-API major_status:000d0000, minor_status:000186a5 [Wed Oct 23 14:03:30 2013] [error] [client 192.168.0.2] gss_accept_sec_context() failed: Unspecified GSS failure. Minor code may provide more information (, ) [Wed Oct 23 14:03:30 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured Let me know if you'd like additional log and config files--the initial question is getting long enough.

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• Docky have stopped working since update

  - by Fraekkert

  I'm running Ubuntu 10.10 64-bit. I'm using the Docky ppa, and since the latest update It won't start. If i run it from the terminal, this is what i get: [Info 09:21:19.005] Docky version: 2.1.0 bzr docky r1761 ppa [Info 09:21:19.024] Kernel version: 2.6.35.24 [Info 09:21:19.026] CLR version: 2.0.50727.1433 [Debug 09:21:19.493] [UserArgs] BufferTime = 0 [Debug 09:21:19.494] [UserArgs] MaxSize = 2147483647 [Debug 09:21:19.494] [UserArgs] NetbookMode = False [Debug 09:21:19.494] [UserArgs] NoPollCursor = False [Debug 09:21:19.528] [SystemService] Using org.freedesktop.UPower for battery information [Info 09:21:19.564] [ThemeService] Setting theme: Transparent [Debug 09:21:19.587] [DesktopItemService] Loading remap file '/usr/share/docky/remaps.ini'. [Debug 09:21:19.599] [DesktopItemService] Remapping 'Picasa3.exe' to 'picasa'. [Debug 09:21:19.599] [DesktopItemService] Remapping 'nbexec' to 'netbeans'. [Debug 09:21:19.599] [DesktopItemService] Remapping 'deja-dup-preferences' to 'deja-dup'. [Debug 09:21:19.599] [DesktopItemService] Remapping 'VirtualBox' to 'virtualbox'. [Warn 09:21:19.600] [DesktopItemService] Could not find remap file '/home/lasse/.local/share/docky/remaps.ini'! [Debug 09:21:19.602] [DesktopItemService] Loading desktop item cache '/home/lasse/.cache/docky/docky.desktop.en_DK.utf8.cache'. [Info 09:21:20.101] [DockServices] Dock services initialized. [Debug 09:21:20.134] [DBusManager] DBus Registered: org.gnome.Docky [Debug 09:21:20.142] [DBusManager] DBus Registered: net.launchpad.DockManager Stacktrace: at (wrapper managed-to-native) System.IO.MonoIO.Read (intptr,byte[],int,int,System.IO.MonoIOError&) <IL 0x00012, 0x00062> at (wrapper managed-to-native) System.IO.MonoIO.Read (intptr,byte[],int,int,System.IO.MonoIOError&) <IL 0x00012, 0x00062> at System.IO.FileStream.ReadData (intptr,byte[],int,int) <IL 0x00009, 0x00047> at System.IO.FileStream.RefillBuffer () <IL 0x0001c, 0x0002b> at System.IO.FileStream.ReadByte () <IL 0x00079, 0x000c7> at Mono.Addins.Serialization.BinaryXmlReader.ReadNext () <IL 0x0000b, 0x00031> at Mono.Addins.Serialization.BinaryXmlReader.Skip () <IL 0x0003c, 0x00053> at Mono.Addins.Serialization.BinaryXmlReader.Skip () <IL 0x00047, 0x0005f> at Mono.Addins.Serialization.BinaryXmlReader.Skip () <IL 0x00047, 0x0005f> And this .Skip () continues infinitely, and very fast. I've tried cleaning the cache and reinstalling docky, but without luck.

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• Team Foundation Server– Debug symbols(pdb files) generated in Release build? Fix it.

  - by Gopinath

  Yesterday I setup TFS for my .NET playground website to implement continuous integration and deployments. After a successful build I noticed that debug symbols(pdb files) were generated even though TFS is configured to build in Release mode.  After a bit of analysis its turned out to be the behavior of TFS to generate debug symbols (pdb files) until we pass the attribute DebugType = None. Here are the steps to pass DebugType parameter to MSBuild of TFS Go to Team Explorer Select Build Defintion >> Edit Build Definition Switch to Process tab Navigate to Advanced Section and locate MSBuild Arguments Add the following: /p:Configuration=Release /p:DebugType=none

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