# Ruby **URL:** https://www.ruby-forum.com/c/ruby/7.md?page=1862 [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:** 1863 --- ## [Ruby/Tk: How to access surrounding class from Tk Callback?](https://www.ruby-forum.com/t/ruby-tk-how-to-access-surrounding-class-from-tk-callback/74132)
**Author:** [@unknown](https://www.ruby-forum.com/u/unknown)\ **Replies:** 4\ **Last updated:** [March 8, 2006, 3:39pm UTC](https://www.ruby-forum.com/t/ruby-tk-how-to-access-surrounding-class-from-tk-callback/74132 "2006-03-08T15:39:55Z")
Assume that I’m modelling a visible form, consisting of entry fields, buttons etc., as a class: require ‘tk’ class Form def initialize(…) @foo=1234 … @root=TkRoot.new() { title “My Form” } action\_button=TkButton.… --- ## [Ajax request & updating multiple divs](https://www.ruby-forum.com/t/ajax-request-updating-multiple-divs/78452)
**Author:** [@Chris\_G\_Ssent\_by\_Na](https://www.ruby-forum.com/u/Chris_G_Ssent_by_Na)\ **Replies:** 0\ **Last updated:** [March 8, 2006, 3:24pm UTC](https://www.ruby-forum.com/t/ajax-request-updating-multiple-divs/78452 "2006-03-08T15:24:44Z")
Hi, I’m a relative newbie to RoR and had a question about using form\_remote\_tag. I hope I’m posting this to the right list I am using form\_remote\_tag to update a section of a page using AJAX once a form is submitte… --- ## [Self.included(base) and base.class\_eval problems, etc](https://www.ruby-forum.com/t/self-included-base-and-base-class-eval-problems-etc/78275)
**Author:** [@unknown](https://www.ruby-forum.com/u/unknown)\ **Replies:** 2\ **Last updated:** [March 8, 2006, 2:54pm UTC](https://www.ruby-forum.com/t/self-included-base-and-base-class-eval-problems-etc/78275 "2006-03-08T14:54:15Z")
I spent a whole night trying to figure out why a module I was including wasn’t producing any results. I finally narrowed it down to this bit of code in the module: def self.included(base) base.send :current\_user, :lo… --- ## [REXML, each\_element and XPath](https://www.ruby-forum.com/t/rexml-each-element-and-xpath/54551)
**Author:** [@Thibaut\_BarrSSSSre](https://www.ruby-forum.com/u/Thibaut_BarrSSSSre)\ **Replies:** 3\ **Last updated:** [March 8, 2006, 1:40pm UTC](https://www.ruby-forum.com/t/rexml-each-element-and-xpath/54551 "2006-03-08T13:40:52Z")
Hi! while playing with REXML I try to use each\_element with an x-path expression involving an attribute (doc/element/@attribute) but can’t get it to work this way (it works perfectly fine with both XPath.each and eac… --- ## [Bruce Tate on ActiveRecord](https://www.ruby-forum.com/t/bruce-tate-on-activerecord/54555)
**Author:** [@albino\_squirrel](https://www.ruby-forum.com/u/albino_squirrel)\ **Replies:** 0\ **Last updated:** [March 8, 2006, 1:25pm UTC](https://www.ruby-forum.com/t/bruce-tate-on-activerecord/54555 "2006-03-08T13:25:27Z")
Bruce Tate on ActiveRecord http://www-128.ibm.com/developerworks/java/library/j-cb03076/?ca=dgr-lnxw 01ActiveRecord Stephen --- ## [Re: from Hex to string](https://www.ruby-forum.com/t/re-from-hex-to-string/78331)
**Author:** [@KroegerS\_Simon\_Sext](https://www.ruby-forum.com/u/KroegerS_Simon_Sext)\ **Replies:** 1\ **Last updated:** [March 8, 2006, 12:45pm UTC](https://www.ruby-forum.com/t/re-from-hex-to-string/78331 "2006-03-08T12:45:49Z")
p “66726f6d 70736e20”.scan(/\\w\\w/).inject(’’) {|s, b| s \<\< b.hex.chr} =\> "frompsn " cheers Simon --- ## [Pointer to c array in Ruby](https://www.ruby-forum.com/t/pointer-to-c-array-in-ruby/77884)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 1\ **Last updated:** [March 8, 2006, 12:30pm UTC](https://www.ruby-forum.com/t/pointer-to-c-array-in-ruby/77884 "2006-03-08T12:30:36Z")
Beginner’s question: I’m creating a large C array using ALLOC\_N and I want to pass that pointer to different C extensions. I don’t want to create a Ruby array (i.e. using rb\_ary\_new4()) because I won’t operate on tha… --- ## [Some error for Tk](https://www.ruby-forum.com/t/some-error-for-tk/70472)
**Author:** [@cfc](https://www.ruby-forum.com/u/cfc)\ **Replies:** 4\ **Last updated:** [March 8, 2006, 11:14am UTC](https://www.ruby-forum.com/t/some-error-for-tk/70472 "2006-03-08T11:14:37Z")
Hi. When I was running my program, and click the button, it will show the following message: ArgumentError: wrong number of arguments (1 for 0) But, I have been read some samples… and here is my code: require ‘tk’ … --- ## [From Hex to string](https://www.ruby-forum.com/t/from-hex-to-string/54549)
**Author:** [@unknown](https://www.ruby-forum.com/u/unknown)\ **Replies:** 4\ **Last updated:** [March 8, 2006, 11:02am UTC](https://www.ruby-forum.com/t/from-hex-to-string/54549 "2006-03-08T11:02:08Z")
i have datas like that : 646c6532 00000000 61657674 0000012e 00000000 00000000 0000011c 00000004 00000001 00000000 00000000 00000000 \[…\] 6c6f6e67 00000004 00000000 66726f6d 70736e20 00000008 00000000 005c0001 3b3b3b3… --- ## [Passing the same argument(s) to several methods at once](https://www.ruby-forum.com/t/passing-the-same-argument-s-to-several-methods-at-once/78181)
**Author:** [@IvSSSSn\_Vega\_R](https://www.ruby-forum.com/u/IvSSSSn_Vega_R)\ **Replies:** 6\ **Last updated:** [March 8, 2006, 3:27am UTC](https://www.ruby-forum.com/t/passing-the-same-argument-s-to-several-methods-at-once/78181 "2006-03-08T03:27:40Z")
Hi, I’m a Ruby beginner, but I remember I read somewhere something related… Only at the time I didn’t realize it’s usefulness until now. Maybe I’m mistaken, but is it possible to pass the same argument(s) to several… --- ## [Indexing system - ruby newbie](https://www.ruby-forum.com/t/indexing-system-ruby-newbie/75214)
**Author:** [@addywaddy](https://www.ruby-forum.com/u/addywaddy)\ **Replies:** 18\ **Last updated:** [March 8, 2006, 3:15am UTC](https://www.ruby-forum.com/t/indexing-system-ruby-newbie/75214 "2006-03-08T03:15:36Z")
Hi there, I’m trying to write a class which converts a number into letters like so: 0 =\> - 1 =\> A 10 =\> J 27 =\> AA … ad infinitum. My class looks like this at the moment (please don’t laugh!) def letter(number… --- ## [Strange Complex behaviour](https://www.ruby-forum.com/t/strange-complex-behaviour/78141)
**Author:** [@SchSSS\_le\_Daniel](https://www.ruby-forum.com/u/SchSSS_le_Daniel)\ **Replies:** 1\ **Last updated:** [March 8, 2006, 3:03am UTC](https://www.ruby-forum.com/t/strange-complex-behaviour/78141 "2006-03-08T03:03:33Z")
Hello all, I encountered a strange behaviour irb(main):041:0\* c = Complex(1.0,1.0) =\> Complex(1.0, 1.0) irb(main):042:0\> p = Complex.polar(2\*\*0.5,45.0/3602PI) =\> Complex(1.0, 1.0) irb(main):043:0\> c == p =\> false … --- ## [GemPlugin 0.1 -- A Mongrel Spinoff](https://www.ruby-forum.com/t/gemplugin-0-1-a-mongrel-spinoff/77185)
**Author:** [@Zed\_S](https://www.ruby-forum.com/u/Zed_S)\ **Replies:** 8\ **Last updated:** [March 8, 2006, 1:14am UTC](https://www.ruby-forum.com/t/gemplugin-0-1-a-mongrel-spinoff/77185 "2006-03-08T01:14:54Z")
Hello folks, Well I spent the weekend working on the Mongrel (http://mongrel.rubyforge.org) plugin system, and actually ended up cracking it out into a separate sub-project and releasing it under Ruby or LGPL. The G… --- ## [Trying to do cvs updates inside back accent environments](https://www.ruby-forum.com/t/trying-to-do-cvs-updates-inside-back-accent-environments/78138)
**Author:** [@Xeno\_C](https://www.ruby-forum.com/u/Xeno_C)\ **Replies:** 2\ **Last updated:** [March 8, 2006, 12:17am UTC](https://www.ruby-forum.com/t/trying-to-do-cvs-updates-inside-back-accent-environments/78138 "2006-03-08T00:17:27Z")
I am unable to do: cd somewhere ; cvs update because it doesn’t like the cd, and possibly not the ;. I also get a strange blowup when I do: \`cvs update somewhere\` where it says: Protocol error: ’ Protocol err… --- ## [ZenTest 3.0.0 Released](https://www.ruby-forum.com/t/zentest-3-0-0-released/77546)
**Author:** [@aguynamedryan](https://www.ruby-forum.com/u/aguynamedryan)\ **Replies:** 4\ **Last updated:** [March 8, 2006, 12:02am UTC](https://www.ruby-forum.com/t/zentest-3-0-0-released/77546 "2006-03-08T00:02:17Z")
ZenTest version 3.0.0 has been released! zentest | software projects | by ryan davis == DESCRIPTION ZenTest provides 3 different tools: zentest, unit\_diff, and autotest. ZenTest scans your target and unit-test code a… --- ## [Re: bug in postgres-pr](https://www.ruby-forum.com/t/re-bug-in-postgres-pr/77510)
**Author:** [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\ **Replies:** 1\ **Last updated:** [March 8, 2006, 12:01am UTC](https://www.ruby-forum.com/t/re-bug-in-postgres-pr/77510 "2006-03-08T00:01:09Z")
install postgres-pr --remote’. But ‘DBI.available\_drivers’ does not show anything of Postgres. It shows only: dbi:ODBC: dbi:Oracle: dbi:Proxy: Someone have make it working? Thanks I suspect that’s a bug in DBI.… --- ## [Rails demo application for web page scraping](https://www.ruby-forum.com/t/rails-demo-application-for-web-page-scraping/54536)
**Author:** [@davidtl](https://www.ruby-forum.com/u/davidtl)\ **Replies:** 0\ **Last updated:** [March 7, 2006, 11:41pm UTC](https://www.ruby-forum.com/t/rails-demo-application-for-web-page-scraping/54536 "2006-03-07T23:41:03Z")
Hi all I wrote an application in Ruby on Rails which breaks up web pages and allow you to weave these pieces together into your own personal page, similar to a tapestry. I would like to invite interested programmers a… --- ## [Wired text\_field and text\_area](https://www.ruby-forum.com/t/wired-text-field-and-text-area/78060)
**Author:** [@misiek](https://www.ruby-forum.com/u/misiek)\ **Replies:** 0\ **Last updated:** [March 7, 2006, 10:21pm UTC](https://www.ruby-forum.com/t/wired-text-field-and-text-area/78060 "2006-03-07T22:21:38Z")
I need to return some values to the form so I do \<%= text\_field ‘property’, ‘name’ , :value =\> session\[:property\]\[:name\] %\>Name and the same fo text area \<%= text\_area ‘property’, ‘description’, :value =\> session\[… --- ## [To\_proc](https://www.ruby-forum.com/t/to-proc/77962)
**Author:** [@brian](https://www.ruby-forum.com/u/brian)\ **Replies:** 4\ **Last updated:** [March 7, 2006, 10:12pm UTC](https://www.ruby-forum.com/t/to-proc/77962 "2006-03-07T22:12:36Z")
require ‘facet/symbol/to\_proc’ \[\[1,2\], \[\], \[1,2,3\]\].map(&:length) #line 1 Blows up re undefined method length for Fixnum? \[“ab”, “”, “abc”\].map(&:length) #line 2 =\> \[2, 0, 3\] but this works fine Why does the firs… --- ## [Phoenix Ruby Users Group March Meeting](https://www.ruby-forum.com/t/phoenix-ruby-users-group-march-meeting/78061)
**Author:** [@byrnejb](https://www.ruby-forum.com/u/byrnejb)\ **Replies:** 0\ **Last updated:** [March 7, 2006, 9:51pm UTC](https://www.ruby-forum.com/t/phoenix-ruby-users-group-march-meeting/78061 "2006-03-07T21:51:10Z")
The Phoenix Ruby U. Group will hold its monthly meeting on March 13, 2006. Where: Cyclone Commerce Inc 8388 E Hartford Dr # 100 Scottsdale, AZ When: 13 March, 6:15 pm - ~8:30 pm Topic: Who knows? We’ll make s… --- ## [Accessing variables/constants from another file](https://www.ruby-forum.com/t/accessing-variables-constants-from-another-file/78013)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 1\ **Last updated:** [March 7, 2006, 9:48pm UTC](https://www.ruby-forum.com/t/accessing-variables-constants-from-another-file/78013 "2006-03-07T21:48:07Z")
How can i access “myvariable” in the provided code from Say constants.rb has the following code Module myvariable = ‘foo’ end And another file driver.rb has following code require constants class myclass \< food d… --- ## [YARV 0.4.0 and ActiveRecord 1.13.2 rubygem](https://www.ruby-forum.com/t/yarv-0-4-0-and-activerecord-1-13-2-rubygem/54530)
**Author:** [@Corban\_Brook](https://www.ruby-forum.com/u/Corban_Brook)\ **Replies:** 1\ **Last updated:** [March 7, 2006, 9:46pm UTC](https://www.ruby-forum.com/t/yarv-0-4-0-and-activerecord-1-13-2-rubygem/54530 "2006-03-07T21:46:40Z")
Did some initial speed tests with YARV 0.4.0 and ActiveRecord 1.13.2rubygem. A select of 1000 records and print out to screen with YARV actually proved slower then ruby. ruby: 2.1 seconds yarv: 3.2 seconds In my r… --- ## [StackError: stack level too deep](https://www.ruby-forum.com/t/stackerror-stack-level-too-deep/54527)
**Author:** [@feldpost](https://www.ruby-forum.com/u/feldpost)\ **Replies:** 1\ **Last updated:** [March 7, 2006, 8:46pm UTC](https://www.ruby-forum.com/t/stackerror-stack-level-too-deep/54527 "2006-03-07T20:46:30Z")
i’m currently learning Ruby. So, while learning about code blocks and yields i wanted to put my freshly acquired knowledge to the test and (just to see if i understood correctly) write my own simple each method for Ar… --- ## [Fastcgi or mod\_ruby?](https://www.ruby-forum.com/t/fastcgi-or-mod-ruby/77804)
**Author:** [@Dominik\_Werder](https://www.ruby-forum.com/u/Dominik_Werder)\ **Replies:** 2\ **Last updated:** [March 7, 2006, 8:40pm UTC](https://www.ruby-forum.com/t/fastcgi-or-mod-ruby/77804 "2006-03-07T20:40:15Z")
Hello! Does anybody know whether mod\_ruby or fastcgi is the superior way of doing http based applications? I don’t need the eruby part of mod\_ruby, and at the moment I’m happy with fastcgi, but maybe it’s good to hear … --- ## [OK.rb's First Meeting Reminder--One Week From Today](https://www.ruby-forum.com/t/ok-rbs-first-meeting-reminder-one-week-from-today/78012)
**Author:** [@bbazzarrakk](https://www.ruby-forum.com/u/bbazzarrakk)\ **Replies:** 0\ **Last updated:** [March 7, 2006, 8:31pm UTC](https://www.ruby-forum.com/t/ok-rbs-first-meeting-reminder-one-week-from-today/78012 "2006-03-07T20:31:06Z")
Just a quick reminder here. We will have our first Oklahoma Ruby U.'s Group meeting one week from today. You can find details at: http://www.rubyholic.com/groups/show/79 Please email me if I can answer any questions… --- ## [How to capture eval's stdout in 1.8?](https://www.ruby-forum.com/t/how-to-capture-evals-stdout-in-1-8/54513)
**Author:** [@sgware](https://www.ruby-forum.com/u/sgware)\ **Replies:** 3\ **Last updated:** [March 7, 2006, 8:15pm UTC](https://www.ruby-forum.com/t/how-to-capture-evals-stdout-in-1-8/54513 "2006-03-07T20:15:52Z")
My searches have come up empty, and most of what I found refers to 1.6 (assigning $defout to a StringIO instance). However, under 1.8 this doesn’t work because: a) assignment to $stdout (which deprecates $defout) is d… --- ## [The Golden Fibonacci Ratio (#69)](https://www.ruby-forum.com/t/the-golden-fibonacci-ratio-69/77967)
**Author:** [@davidtl](https://www.ruby-forum.com/u/davidtl)\ **Replies:** 0\ **Last updated:** [March 7, 2006, 7:54pm UTC](https://www.ruby-forum.com/t/the-golden-fibonacci-ratio-69/77967 "2006-03-07T19:54:29Z")
A PDF version “translate” from Christian N.'s Postscript Code. ( http://www.ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-talk/182741 ) (puts “Usage #$0 filename”; exit(1)) unless ARGV\[0\] require ‘pdf/writer’ pdf = PDF::… --- ## [Postgresql could not connect to](https://www.ruby-forum.com/t/postgresql-could-not-connect-to/77266)
**Author:** [@ngoc](https://www.ruby-forum.com/u/ngoc)\ **Replies:** 1\ **Last updated:** [March 7, 2006, 7:17pm UTC](https://www.ruby-forum.com/t/postgresql-could-not-connect-to/77266 "2006-03-07T19:17:13Z")
Hi My environment is Windows XP and have installed ‘gem install postgres-pr’. Postgresql is running. I have this code for test of connection require ‘dbi’ dbh = DBI.connect(‘DBI:Pg:my\_db:localhost’, ‘my\_account\_nam… --- ## [Nitro + Og 0.29.0: R operator, Improve error handling, routi](https://www.ruby-forum.com/t/nitro-og-0-29-0-r-operator-improve-error-handling-routi/77886)
**Author:** [@gmichelson](https://www.ruby-forum.com/u/gmichelson)\ **Replies:** 1\ **Last updated:** [March 7, 2006, 6:14pm UTC](https://www.ruby-forum.com/t/nitro-og-0-29-0-r-operator-improve-error-handling-routi/77886 "2006-03-07T18:14:00Z")
Dear devs, The Nitro Development Team is proud to announce new versions of Nitro and Og homepage: http://www.nitrohq.com install: gem install nitro download: http://rubyforge.org/projects/nitro/ trac: oree.ch irc:… --- ## [Capistrano](https://www.ruby-forum.com/t/capistrano/77481)
**Author:** [@beachguy82](https://www.ruby-forum.com/u/beachguy82)\ **Replies:** 7\ **Last updated:** [March 7, 2006, 5:10pm UTC](https://www.ruby-forum.com/t/capistrano/77481 "2006-03-07T17:10:00Z")
I’m having trouble finding the benefit of using capistrano. I’m only using rails for a very small blog. Sometime in the next year I do expect to start using rails at work. What are the benefits of using capistrano … [Previous page](https://www.ruby-forum.com/c/ruby/7.md?page=1861) [Next page](https://www.ruby-forum.com/c/ruby/7.md?page=1863)