# Top **URL:** https://www.ruby-forum.com/top.md?page=839 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 840 --- ## [Undefined method \`require\_gem'](https://www.ruby-forum.com/t/undefined-method-require-gem/125634)
**Author:** [@blinking\_bear](https://www.ruby-forum.com/u/blinking_bear)\ **Replies:** 6\ **Last updated:** [February 21, 2008, 4:13am UTC](https://www.ruby-forum.com/t/undefined-method-require-gem/125634 "2008-02-21T04:13:39Z")
When I run rake i get ’ undefined method \`require\_gem’’ Here’s my setup: ruby:ruby 1.8.6 (2007-09-24 patchlevel 111) \[i386-freebsd6\] rails: 2.0.2 gem:1.0.1 --- ## [Closing popup](https://www.ruby-forum.com/t/closing-popup/84207)
**Author:** [@claxo](https://www.ruby-forum.com/u/claxo)\ **Replies:** 6\ **Last updated:** [February 2, 2008, 12:03am UTC](https://www.ruby-forum.com/t/closing-popup/84207 "2008-02-02T00:03:19Z")
Hi, i’m using popup in my application when i have to use a form to submit some data: link\_to “Add”, {:action =\> “add\_customer”}, :popup =\> \[‘new’, ‘height=300,width=300’\] When i push submit i like that the popup clo… --- ## [How do I alter posted data before it is saved in a controlle](https://www.ruby-forum.com/t/how-do-i-alter-posted-data-before-it-is-saved-in-a-controlle/109297)
**Author:** [@summea](https://www.ruby-forum.com/u/summea)\ **Replies:** 6\ **Last updated:** [July 13, 2007, 3:57pm UTC](https://www.ruby-forum.com/t/how-do-i-alter-posted-data-before-it-is-saved-in-a-controlle/109297 "2007-07-13T15:57:38Z")
Hi everyone, I’m still new to Ruby and Ruby on Rails. I’ve worked with CakePHP for quite a while though, so I’m happy to see that most of what I’ve learned about CakePHP translates over (more or less,) in using Ruby … --- ## [Simply\_helpful, where has it gone?](https://www.ruby-forum.com/t/simply-helpful-where-has-it-gone/106451)
**Author:** [@mark](https://www.ruby-forum.com/u/mark)\ **Replies:** 6\ **Last updated:** [June 18, 2007, 5:38pm UTC](https://www.ruby-forum.com/t/simply-helpful-where-has-it-gone/106451 "2007-06-18T17:38:25Z")
Anyone know wahts happened to the simply\_helpful plugin? doesnt seem to be in its usual svn location? http://dev.rubyonrails.org/svn/rails/plugins/simply\_helpful/ --- ## [Real sampling with DBSRX (& more!)](https://www.ruby-forum.com/t/real-sampling-with-dbsrx-more/104100)
**Author:** [@davide\_a](https://www.ruby-forum.com/u/davide_a)\ **Replies:** 6\ **Last updated:** [May 14, 2007, 11:36am UTC](https://www.ruby-forum.com/t/real-sampling-with-dbsrx-more/104100 "2007-05-14T11:36:39Z")
Hi List, is it possible to use only real sampling coming from the DBSRX? Any one can send me the instruction to set correctly the VCO on the MAX2118? Thanks, Davide A. web: http://www.davideanastasia.com/ email: r… --- ## [I'm new to Ruby On Rails](https://www.ruby-forum.com/t/im-new-to-ruby-on-rails/92051)
**Author:** [@jeremy](https://www.ruby-forum.com/u/jeremy)\ **Replies:** 6\ **Last updated:** [April 15, 2007, 11:58am UTC](https://www.ruby-forum.com/t/im-new-to-ruby-on-rails/92051 "2007-04-15T11:58:55Z")
Hi, guys. I’m so happy to join this group. I’m new to ROR. And I haven’t learned or used any other program langueage before. I’m intrest in develop web-based database-driven prgramming. My company need to develop a b… --- ## [Two developers, one on unix and one on windows](https://www.ruby-forum.com/t/two-developers-one-on-unix-and-one-on-windows/59191)
**Author:** [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Replies:** 6\ **Last updated:** [May 3, 2006, 6:57pm UTC](https://www.ruby-forum.com/t/two-developers-one-on-unix-and-one-on-windows/59191 "2006-05-03T18:57:13Z")
Hello all, An interesting problem, I am developing on Windows, another developer is using Unix, and our app and svn repository are running on a Linux box. We need an easy way to not keep breaking our app and each othe… --- ## [Custom tag with RedCloth](https://www.ruby-forum.com/t/custom-tag-with-redcloth/179803)
**Author:** [@Phan\_Le](https://www.ruby-forum.com/u/Phan_Le)\ **Replies:** 0\ **Last updated:** [December 4, 2009, 5:56am UTC](https://www.ruby-forum.com/t/custom-tag-with-redcloth/179803 "2009-12-04T05:56:27Z")
Hi all, What would it be the best way to create a custom tag with RedCloth? I read an article here but RedCloth has changed since then Thanks, Phan --- ## [GSOC 2014 project proposal?](https://www.ruby-forum.com/t/gsoc-2014-project-proposal/239682)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [March 21, 2014, 11:14am UTC](https://www.ruby-forum.com/t/gsoc-2014-project-proposal/239682 "2014-03-21T11:14:44Z")
Hello: I wrote to the maillist a previous email with no response. I re-send it in case the team does not have the chance to check it. I would be very thankfull if the team would let me know if GNU Radio is interested… --- ## [How to get around a reserved word](https://www.ruby-forum.com/t/how-to-get-around-a-reserved-word/239571)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [March 5, 2014, 2:48pm UTC](https://www.ruby-forum.com/t/how-to-get-around-a-reserved-word/239571 "2014-03-05T14:48:45Z")
I need to use the model name ‘Action’ (which will not work in Rails 4.0.3) for business reasons (it’s a product name). If I name the actual model something else, is there any way to (maybe with mod\_rewrite) make the U… --- ## [ApplicationController class method not being called each page load](https://www.ruby-forum.com/t/applicationcontroller-class-method-not-being-called-each-page-load/237636)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [November 22, 2013, 11:39am UTC](https://www.ruby-forum.com/t/applicationcontroller-class-method-not-being-called-each-page-load/237636 "2013-11-22T11:39:54Z")
Ruby 2, Rails 4, bundler I’m trying to package a bunch of my own reusable libs into gems. I did this quite some time ago for Ruby 1.8, Rails 3. Now I’m updating everything, and trying a new approach to the gem structu… --- ## [Usrp\_spectrum\_sense.py](https://www.ruby-forum.com/t/usrp-spectrum-sense-py/219870)
**Author:** [@Gurdipe\_D](https://www.ruby-forum.com/u/Gurdipe_D)\ **Replies:** 4\ **Last updated:** [February 13, 2013, 9:54am UTC](https://www.ruby-forum.com/t/usrp-spectrum-sense-py/219870 "2013-02-13T09:54:39Z")
i am new to this and don’t have enough experience in programing? How to get output data from usrp\_spectrum\_sense.py and save it to file ? --- ## [Offerta di Lavoro?](https://www.ruby-forum.com/t/offerta-di-lavoro/225643)
**Author:** [@aris](https://www.ruby-forum.com/u/aris)\ **Replies:** 4\ **Last updated:** [January 21, 2013, 12:10pm UTC](https://www.ruby-forum.com/t/offerta-di-lavoro/225643 "2013-01-21T12:10:32Z")
Ciao, Ho una segnalazione per un’azienda che cerca programmatori. Posso postare la segnalazione qui? O anche, c’e’ una lista pi specifica dato che l’offerta riguarda zona Milano? Grazie ciao --- ## [Class, Module, Object](https://www.ruby-forum.com/t/class-module-object/223128)
**Author:** [@aris](https://www.ruby-forum.com/u/aris)\ **Replies:** 4\ **Last updated:** [October 4, 2012, 5:09am UTC](https://www.ruby-forum.com/t/class-module-object/223128 "2012-10-04T05:09:07Z")
reload! Reloading… =\> true puts Class \< Module true =\> nil puts Module \< Class false =\> nil puts Module \< Object true =\> nil puts Object \< Module false =\> nil Object.parent =\> Object The ab… --- ## [View.should render\_template best practices?](https://www.ruby-forum.com/t/view-should-render-template-best-practices/199240)
**Author:** [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\ **Replies:** 4\ **Last updated:** [November 17, 2010, 3:30pm UTC](https://www.ruby-forum.com/t/view-should-render-template-best-practices/199240 "2010-11-17T15:30:10Z")
I’ve been looking for the definitive answer for months now, and the RSpec book doesn’t touch on it at all: How do we now handle stubbing out rendering of partials in view specs in RSpec2? I have a large (35K+ lines o… --- ## [Apache Pivot example written in JRuby](https://www.ruby-forum.com/t/apache-pivot-example-written-in-jruby/187190)
**Author:** [@chrisdwan](https://www.ruby-forum.com/u/chrisdwan)\ **Replies:** 4\ **Last updated:** [July 26, 2010, 2:33am UTC](https://www.ruby-forum.com/t/apache-pivot-example-written-in-jruby/187190 "2010-07-26T02:33:58Z")
Hi, Has anyone got or found a working Apache Pivot (http:// pivot.apache.org) code example written in JRuby? I’m trying to create one but failing miserably. There are numerous Swing code examples written in JRuby an… --- ## [Gnuplot zooming and grids](https://www.ruby-forum.com/t/gnuplot-zooming-and-grids/165143)
**Author:** [@robredford](https://www.ruby-forum.com/u/robredford)\ **Replies:** 4\ **Last updated:** [April 13, 2009, 6:46pm UTC](https://www.ruby-forum.com/t/gnuplot-zooming-and-grids/165143 "2009-04-13T18:46:33Z")
I have the basic Ruby gnuplot interface working. I don’t seem to get the zooming feature I’m used to when using gnuplot\>. Thus 2 questions: How to provide the usual zooming feature when using gnuplot through ruby? H… --- ## [OT: Una duda de Ruby no de RoR](https://www.ruby-forum.com/t/ot-una-duda-de-ruby-no-de-ror/160556)
**Author:** [@Reynier\_Perez\_M](https://www.ruby-forum.com/u/Reynier_Perez_M)\ **Replies:** 4\ **Last updated:** [February 18, 2009, 4:46am UTC](https://www.ruby-forum.com/t/ot-una-duda-de-ruby-no-de-ror/160556 "2009-02-18T04:46:56Z")
Buenas a todos: Primero que todo mis disculpas a la lista de RoR por realizar una pregunta de Ruby en la misma pero no conozco alguna lista en castellano de Ruby (si alguien la conoce y me lo dice sería perfecto :wink… --- ## [Laopt is faster than server](https://www.ruby-forum.com/t/laopt-is-faster-than-server/157405)
**Author:** [@vince](https://www.ruby-forum.com/u/vince)\ **Replies:** 4\ **Last updated:** [January 12, 2009, 1:35pm UTC](https://www.ruby-forum.com/t/laopt-is-faster-than-server/157405 "2009-01-12T13:35:59Z")
I’m running the same app with the same database. In development (my laptop which has 2GB of RAM running Debian): Cache write (will save 32.97ms): Product.count Rendered shared/\_search (36.8ms) Rendered shared/\_footer… --- ## [Codigo de barra en ruby](https://www.ruby-forum.com/t/codigo-de-barra-en-ruby/157166)
**Author:** [@JSMartSSS\_n\_FernSS](https://www.ruby-forum.com/u/JSMartSSS_n_FernSS)\ **Replies:** 4\ **Last updated:** [January 8, 2009, 5:06pm UTC](https://www.ruby-forum.com/t/codigo-de-barra-en-ruby/157166 "2009-01-08T17:06:51Z")
Buenos días a todos, Por casualidad, alguien tiene idea de cómo generan código de barra en ruby??? Específicamente necesito hacer código de barra del tipo “datamatrix” Les agradezco a todos por la ayuda de cad… --- ## [Error retrieving from github](https://www.ruby-forum.com/t/error-retrieving-from-github/156924)
**Author:** [@trptcolin](https://www.ruby-forum.com/u/trptcolin)\ **Replies:** 4\ **Last updated:** [January 5, 2009, 4:56pm UTC](https://www.ruby-forum.com/t/error-retrieving-from-github/156924 "2009-01-05T16:56:06Z")
Hi, I’ve been trying to get IronRuby from GIT using the steps in Ben’s blog (Downloading IronRuby from GitHub – Ben Hall's Blog) but keep getting this error: github.com\[0: 65.74.177.129\]: errno=Invalid argument fata… --- ## [MissingSourceFile in Controller#index](https://www.ruby-forum.com/t/missingsourcefile-in-controller-index/156890)
**Author:** [@jhon\_pierre](https://www.ruby-forum.com/u/jhon_pierre)\ **Replies:** 4\ **Last updated:** [January 5, 2009, 1:23pm UTC](https://www.ruby-forum.com/t/missingsourcefile-in-controller-index/156890 "2009-01-05T13:23:00Z")
Hola Amigos del Foro, les saludo. Soy Nuevo Principiante en RubyOnRails, estoy haciendo mi application de \`prueba ( recetario ), y al lanzar el server y rutear mi app, me surge ese error: “MissingSourceFile in mi\_prue… --- ## [Ruby/SerialPort Library is slow/delay/portions on Windows](https://www.ruby-forum.com/t/ruby-serialport-library-is-slow-delay-portions-on-windows/146363)
**Author:** [@alcost](https://www.ruby-forum.com/u/alcost)\ **Replies:** 4\ **Last updated:** [August 21, 2008, 4:18pm UTC](https://www.ruby-forum.com/t/ruby-serialport-library-is-slow-delay-portions-on-windows/146363 "2008-08-21T16:18:06Z")
Hi I was doing serial port reading software with Ruby and Ruby/SerialPort Library on Windows. I noticed that port reading works but with delays or jitter when data from serial port comes, reading works in portions. In … --- ## [Frage zu acts\_as\_versioned](https://www.ruby-forum.com/t/frage-zu-acts-as-versioned/118912)
**Author:** [@mrkohrea](https://www.ruby-forum.com/u/mrkohrea)\ **Replies:** 4\ **Last updated:** [November 14, 2007, 12:49pm UTC](https://www.ruby-forum.com/t/frage-zu-acts-as-versioned/118912 "2007-11-14T12:49:10Z")
Hallo, ich benötige für ein Projekt eine Versionierung. Das erste, was ich gefunden habe, ist natürlich acts\_as\_versioned. Allerdings ist das letzte Datum einer Änderung der 3. November 2005. Jetzt habe ich zwe… --- ## [Ruby and XML Security](https://www.ruby-forum.com/t/ruby-and-xml-security/71682)
**Author:** [@ther](https://www.ruby-forum.com/u/ther)\ **Replies:** 4\ **Last updated:** [October 12, 2006, 9:38am UTC](https://www.ruby-forum.com/t/ruby-and-xml-security/71682 "2006-10-12T09:38:44Z")
Is it possible with Ruby to go through XML security process. read x509 private key read receiver x509 public key encrypt message with private key encrypt message with public key sign message I guess first 4 steps coul… --- ## [Rails Install on Linux (SuSE 9.3) Fails](https://www.ruby-forum.com/t/rails-install-on-linux-suse-9-3-fails/53629)
**Author:** [@jim-harris](https://www.ruby-forum.com/u/jim-harris)\ **Replies:** 4\ **Last updated:** [February 13, 2006, 3:29am UTC](https://www.ruby-forum.com/t/rails-install-on-linux-suse-9-3-fails/53629 "2006-02-13T03:29:43Z")
Hello. I’m just getting started with RoR, and I’m none too good at Linux either. :slight\_smile: But anyway, I got ruby-1.8.4.tar.gz and rubygems-0.8.11 and unpacked them in separate directories under my normal user… --- ## [Conexion con socket seguro SSL](https://www.ruby-forum.com/t/conexion-con-socket-seguro-ssl/245659)
**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\ **Replies:** 1\ **Last updated:** [June 26, 2013, 11:36pm UTC](https://www.ruby-forum.com/t/conexion-con-socket-seguro-ssl/245659 "2013-06-26T23:36:45Z")
Hola amigos, Estoy intentando establecer una comunicación SSL usando sockets seguros, el problema que tengo es que cuando el cliente le manda el mensaje al servidor, el servidor acepta la conexión pero al momento de l… --- ## [Multiplying 2 signals from the grc](https://www.ruby-forum.com/t/multiplying-2-signals-from-the-grc/218645)
**Author:** [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Replies:** 1\ **Last updated:** [April 6, 2012, 9:27pm UTC](https://www.ruby-forum.com/t/multiplying-2-signals-from-the-grc/218645 "2012-04-06T21:27:17Z")
Hi all, I need to multiply 2 signals (800 MHz and 820 MHz) from external signal generators. I used the usrp-1 and DBSRX daughter-boards to detect the 2 signals. I attached the grc file that I created for this applicat… --- ## [Backend game server](https://www.ruby-forum.com/t/backend-game-server/176532)
**Author:** [@wyattbiker](https://www.ruby-forum.com/u/wyattbiker)\ **Replies:** 1\ **Last updated:** [October 1, 2009, 7:20pm UTC](https://www.ruby-forum.com/t/backend-game-server/176532 "2009-10-01T19:20:56Z")
Hi, I have a game that I need to make a small backend game management server so that gamers can play against each other. My game is turn based and very little data goes across only 2 players per game but many games ca… --- ## [How to send window.location.hash (string after # in the url) along post request](https://www.ruby-forum.com/t/how-to-send-window-location-hash-string-after-in-the-url-along-post-request/141288)
**Author:** [@g0nzo](https://www.ruby-forum.com/u/g0nzo)\ **Replies:** 1\ **Last updated:** [June 24, 2008, 12:50pm UTC](https://www.ruby-forum.com/t/how-to-send-window-location-hash-string-after-in-the-url-along-post-request/141288 "2008-06-24T12:50:34Z")
Hi, I got some old javascript tab system and I’m trying to rewrite it to make use of window.location.hash to set proper tab after the page is loaded. It more or less works, but the main problem is that I got some for… --- ## [New to Ruby is $ depricated?](https://www.ruby-forum.com/t/new-to-ruby-is-depricated/251849)
**Author:** [@goofyfoot](https://www.ruby-forum.com/u/goofyfoot)\ **Replies:** 2\ **Last updated:** [February 10, 2019, 9:20pm UTC](https://www.ruby-forum.com/t/new-to-ruby-is-depricated/251849 "2019-02-10T21:20:55Z")
Hello ALL … I am just starting out and every turn so far has not been easy. I am figuring it out as I go but it is frustrating. I am seeing it used, the $ at the beginning of the line of code. Every time I enter it with… --- ## [Ruby DevKit troubles](https://www.ruby-forum.com/t/ruby-devkit-troubles/243340)
**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\ **Replies:** 2\ **Last updated:** [September 23, 2015, 2:00pm UTC](https://www.ruby-forum.com/t/ruby-devkit-troubles/243340 "2015-09-23T14:00:39Z")
Hi everyone, I am having some trouble installing rubygems on a windows system. I have tried to install the devkit but so far I am not able to use the “gem” command in “irb” System: Windows 2008 R2 Standard 64-bit R… --- ## [Fast\_xs.c:169: error: ‘struct RArray’ has no member named ‘ptr’](https://www.ruby-forum.com/t/fast-xs-c-error-struct-rarray-has-no-member-named-ptr/203183)
**Author:** [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Replies:** 2\ **Last updated:** [February 17, 2011, 7:11pm UTC](https://www.ruby-forum.com/t/fast-xs-c-error-struct-rarray-has-no-member-named-ptr/203183 "2011-02-17T19:11:27Z")
Hey all, I tried to do bundle install in my Rails 3 project and got this error: /Users/jmerlino/.rvm/rubies/ruby-1.9.2-p136/bin/ruby extconf.rb checking for stdio.h… yes creating Makefile make gcc -I. -I/Users/jme… --- ## [Cucumber seems to be running steps after failed steps](https://www.ruby-forum.com/t/cucumber-seems-to-be-running-steps-after-failed-steps/162731)
**Author:** [@korny](https://www.ruby-forum.com/u/korny)\ **Replies:** 2\ **Last updated:** [March 13, 2009, 9:01am UTC](https://www.ruby-forum.com/t/cucumber-seems-to-be-running-steps-after-failed-steps/162731 "2009-03-13T09:01:57Z")
I’m a bit confused. I have a scenario similar to (numbered for clarity): Scenario: view basic Given I am logged in as 'fred' When I navigate to the 'foo' tab And I select the 'bar' node Then the node 'ba… --- ## [Loops and Iterators Difference](https://www.ruby-forum.com/t/loops-and-iterators-difference/152172)
**Author:** [@sohdubom](https://www.ruby-forum.com/u/sohdubom)\ **Replies:** 2\ **Last updated:** [October 31, 2008, 11:32am UTC](https://www.ruby-forum.com/t/loops-and-iterators-difference/152172 "2008-10-31T11:32:32Z")
Hi. The way I understand, both loops and iterators are, ‘loops’, but the sutil difference is that a loop is used to just loop several times and an iterators loops several times and also access some attribute of the el… --- ## [How to find carriage-return characters](https://www.ruby-forum.com/t/how-to-find-carriage-return-characters/135076)
**Author:** [@wpwood](https://www.ruby-forum.com/u/wpwood)\ **Replies:** 2\ **Last updated:** [April 18, 2008, 4:43am UTC](https://www.ruby-forum.com/t/how-to-find-carriage-return-characters/135076 "2008-04-18T04:43:28Z")
I need to do a .gsub or .split or the equivalent to locate carriage-return characters ­ Hex 0d . How can I do this in ruby? Thanks. Bill W. --- ## [Enforce mutual exclusivity](https://www.ruby-forum.com/t/enforce-mutual-exclusivity/114108)
**Author:** [@Toby\_OSRourke](https://www.ruby-forum.com/u/Toby_OSRourke)\ **Replies:** 2\ **Last updated:** [September 9, 2007, 12:14am UTC](https://www.ruby-forum.com/t/enforce-mutual-exclusivity/114108 "2007-09-09T00:14:07Z")
Hi, First post, sorry if this is the wrong place or has been answered before. I’m using ActiveRecord and I want to enforce mutual exclusivity on a has\_and\_belongs\_to\_many. A concrete example: I have a User which can… --- ## [Ruby hangs when trying to install RubyGems](https://www.ruby-forum.com/t/ruby-hangs-when-trying-to-install-rubygems/84823)
**Author:** [@john\_old](https://www.ruby-forum.com/u/john_old)\ **Replies:** 2\ **Last updated:** [February 18, 2007, 3:49am UTC](https://www.ruby-forum.com/t/ruby-hangs-when-trying-to-install-rubygems/84823 "2007-02-18T03:49:52Z")
I’ve just set up a minimal Gentoo install and emerged Ruby 1.8.5 from portage. I then went to emerge rubygems, and found that it hangs. Manually downloading the file and running ‘ruby setup.rb’ also hangs. The followi… --- ## [Gr\_modtool make error](https://www.ruby-forum.com/t/gr-modtool-make-error/229671)
**Author:** [@serhat\_b](https://www.ruby-forum.com/u/serhat_b)\ **Replies:** 5\ **Last updated:** [February 26, 2013, 11:13am UTC](https://www.ruby-forum.com/t/gr-modtool-make-error/229671 "2013-02-26T11:13:53Z")
I had tried to make eneable qpsk at grc blocks but it is gives errors at the end, what is problemlem anybody to help? not: i had downloaded qpsk.py from http://gnuradio.org/redmine/projects/gnuradio/repository/revisio… --- ## [Avoiding eval](https://www.ruby-forum.com/t/avoiding-eval/194000)
**Author:** [@rawroe](https://www.ruby-forum.com/u/rawroe)\ **Replies:** 5\ **Last updated:** [August 27, 2010, 6:27pm UTC](https://www.ruby-forum.com/t/avoiding-eval/194000 "2010-08-27T18:27:31Z")
Hey all, If I have a string like “Math”, I know I can use const\_get to turn it into an instance of Class. Awesome. But what if I have something like “Math::PI”. Am I stuck using eval to resolve that? --- ## [Unknown dboard-id](https://www.ruby-forum.com/t/unknown-dboard-id/192717)
**Author:** [@Ninja](https://www.ruby-forum.com/u/Ninja)\ **Replies:** 5\ **Last updated:** [August 4, 2010, 9:09pm UTC](https://www.ruby-forum.com/t/unknown-dboard-id/192717 "2010-08-04T21:09:41Z")
I tested the usrp2 using uhd\_usrp\_probe, why is there a warning about unknown dboard-id or dboard-id combination and Unknown value for RX Subdev and TX Subdev (antenna?)?is there some miss when I assembled the device?… --- ## [Subject in the before block?](https://www.ruby-forum.com/t/subject-in-the-before-block/186129)
**Author:** [@stickstone](https://www.ruby-forum.com/u/stickstone)\ **Replies:** 5\ **Last updated:** [April 1, 2010, 5:00pm UTC](https://www.ruby-forum.com/t/subject-in-the-before-block/186129 "2010-04-01T17:00:42Z")
Is there a reason why I cannot access the subject in the before block? It seems to me that anything that I have access to in the it blocks should also be accessible in the before block. --- ## [Can't start webrick as the root user](https://www.ruby-forum.com/t/cant-start-webrick-as-the-root-user/168655)
**Author:** [@pbhandar](https://www.ruby-forum.com/u/pbhandar)\ **Replies:** 5\ **Last updated:** [May 27, 2009, 6:44pm UTC](https://www.ruby-forum.com/t/cant-start-webrick-as-the-root-user/168655 "2009-05-27T18:44:48Z")
Hi, I am trying to start Webrick as root user and get TCP Bind error even though the port appears to be not taken. Running the same script as a non-root user that owns the ruby installs works just fine. Running dvd… --- ## [Dos listas](https://www.ruby-forum.com/t/dos-listas/86396)
**Author:** [@william](https://www.ruby-forum.com/u/william)\ **Replies:** 5\ **Last updated:** [August 7, 2008, 7:00pm UTC](https://www.ruby-forum.com/t/dos-listas/86396 "2008-08-07T19:00:10Z")
Compañeros, uds tienen un ejemplo en donde se muestren dos listas desplegables, la segunda que dependa de lo ingresado en la primera? mil gracias por la valiosa ayuda. Adelante con Rails!!! --- ## [Herencia en Layouts](https://www.ruby-forum.com/t/herencia-en-layouts/142470)
**Author:** [@aprendiz\_basico](https://www.ruby-forum.com/u/aprendiz_basico)\ **Replies:** 5\ **Last updated:** [July 9, 2008, 2:08am UTC](https://www.ruby-forum.com/t/herencia-en-layouts/142470 "2008-07-09T02:08:09Z")
Hola, En mi aplicación utilizo un layout global /views/layouts/application.html.erb. Ahora bien, necesito un layout para un controller, por ejemplo /layouts/products.html.erb, pero que herede el layout application,… --- ## [Another noob question about stubs](https://www.ruby-forum.com/t/another-noob-question-about-stubs/136187)
**Author:** [@patcito](https://www.ruby-forum.com/u/patcito)\ **Replies:** 5\ **Last updated:** [May 6, 2008, 7:13am UTC](https://www.ruby-forum.com/t/another-noob-question-about-stubs/136187 "2008-05-06T07:13:04Z")
I have this function in my controller: def open\_id\_authentication(openid\_url) authenticate\_with\_open\_id(openid\_url, :required =\> \[:nickname, :email\], :optional =\> \[:fullname\]) do |result, identity\_url, registration| … --- ## [Re: A Question on Packet Processing](https://www.ruby-forum.com/t/re-a-question-on-packet-processing/86387)
**Author:** [@Achilleas\_A](https://www.ruby-forum.com/u/Achilleas_A)\ **Replies:** 5\ **Last updated:** [February 22, 2007, 12:00am UTC](https://www.ruby-forum.com/t/re-a-question-on-packet-processing/86387 "2007-02-22T00:00:09Z")
Tim, I think there are two parts in your question: how to detect an incoming packet and do something with it. how to operate the viterbi algorithm block in a packet to packet basis without generating the flow graph a… --- ## [Masters Thesis on Ruby](https://www.ruby-forum.com/t/masters-thesis-on-ruby/84584)
**Author:** [@snk](https://www.ruby-forum.com/u/snk)\ **Replies:** 5\ **Last updated:** [February 8, 2007, 8:18am UTC](https://www.ruby-forum.com/t/masters-thesis-on-ruby/84584 "2007-02-08T08:18:29Z")
Dear Ruby community, Last week, I submitted by Masters Thesis\[1\] on – to summarize greatly – using Ruby to bring agile software development practices like TDD and BDD to the cold, dark realm of hardware development. I… --- ## [OT: Subversion folder cleanup](https://www.ruby-forum.com/t/ot-subversion-folder-cleanup/55160)
**Author:** [@BuntinS\_SethSKATE](https://www.ruby-forum.com/u/BuntinS_SethSKATE)\ **Replies:** 5\ **Last updated:** [March 17, 2006, 3:34pm UTC](https://www.ruby-forum.com/t/ot-subversion-folder-cleanup/55160 "2006-03-17T15:34:40Z")
How do you clean up your app folder to place onto the server? I want to get rid of all the .svn stuff. Seth B. --- ## [Google Summer of Code 2008?](https://www.ruby-forum.com/t/google-summer-of-code-2008/132326)
**Author:** [@Chiyuan\_Z](https://www.ruby-forum.com/u/Chiyuan_Z)\ **Replies:** 8\ **Last updated:** [March 20, 2008, 3:48pm UTC](https://www.ruby-forum.com/t/google-summer-of-code-2008/132326 "2008-03-20T15:48:01Z")
Hi, Ruby community is participating Google Summer of Code through Ruby Central. However, although project ideas of other organizations have been announced, I found that there’s still no under the Ruby Central page. … [Previous page](https://www.ruby-forum.com/top.md?page=838&per_page=50) [Next page](https://www.ruby-forum.com/top.md?page=840&per_page=50)