# Top **URL:** https://www.ruby-forum.com/top.md?page=1466 [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:** 1467 --- ## [PunBB integration](https://www.ruby-forum.com/t/punbb-integration/141296)
**Author:** [@GearSSS\_id\_OSCealla](https://www.ruby-forum.com/u/GearSSS_id_OSCealla)\ **Replies:** 7\ **Last updated:** [June 24, 2008, 11:57pm UTC](https://www.ruby-forum.com/t/punbb-integration/141296 "2008-06-24T23:57:52Z")
Hi, I’m new to ruby and rails and, after some inital success, I’ve hit a bit of a roadblock. I’m setting up a community-based site which will include a forum. I’m thinking of using PunBB for this but I dont understan… --- ## [Gettting the current windows user id](https://www.ruby-forum.com/t/gettting-the-current-windows-user-id/131257)
**Author:** [@Prasanna\_kumar\_N](https://www.ruby-forum.com/u/Prasanna_kumar_N)\ **Replies:** 7\ **Last updated:** [March 11, 2008, 5:52am UTC](https://www.ruby-forum.com/t/gettting-the-current-windows-user-id/131257 "2008-03-11T05:52:20Z")
Hi I have where users can enter title and description that gets stored in the database. since this will not give information on who has entered what… I was thinking of haveing a filed say created\_by to which I can in… --- ## [Query Problem, limiting list results](https://www.ruby-forum.com/t/query-problem-limiting-list-results/113635)
**Author:** [@myowntribe](https://www.ruby-forum.com/u/myowntribe)\ **Replies:** 7\ **Last updated:** [September 3, 2007, 10:00am UTC](https://www.ruby-forum.com/t/query-problem-limiting-list-results/113635 "2007-09-03T10:00:31Z")
Hi all, Could anyone please help me with this query? I need to list user names and pictures of corresponding users and that too by limiting the list to just 5 users. this is the error that occurs in the controller: A… --- ## [Image\_tag and files outsite /public directory](https://www.ruby-forum.com/t/image-tag-and-files-outsite-public-directory/110161)
**Author:** [@jochen\_kaechelin](https://www.ruby-forum.com/u/jochen_kaechelin)\ **Replies:** 7\ **Last updated:** [July 24, 2007, 9:17am UTC](https://www.ruby-forum.com/t/image-tag-and-files-outsite-public-directory/110161 "2007-07-24T09:17:37Z")
I have some image files under /app /uploads /images/ 111.jpg /public /images . . How can I user image\_tag to display the images under /uploads/images/…? Any hints? – Jochen K. gissmoh.de, figgfrosch.de, ror… --- ## [Newb - Active Records question](https://www.ruby-forum.com/t/newb-active-records-question/77429)
**Author:** [@canner](https://www.ruby-forum.com/u/canner)\ **Replies:** 7\ **Last updated:** [November 30, 2006, 6:18pm UTC](https://www.ruby-forum.com/t/newb-active-records-question/77429 "2006-11-30T18:18:37Z")
Can you sort a result set? I’d like to have a generic query, but be able to order it by one of the cols if a param is set. ie @records = Cars.find(:all, :conditions =\> \[“color = ‘Red’”\], :order =\> “sales” ) @record… --- ## [Looking for coaches for the Rails Girls Summer of Code 2015!](https://www.ruby-forum.com/t/looking-for-coaches-for-the-rails-girls-summer-of-code-2015/241466)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [April 8, 2015, 11:16am UTC](https://www.ruby-forum.com/t/looking-for-coaches-for-the-rails-girls-summer-of-code-2015/241466 "2015-04-08T11:16:58Z")
Hello every one, My name is Won and my partner’s name is Yasamin Salami. We both are studying IT in Helsinki, Finland. Even though, I am originally from Korea and my partner is from Iran and we are looking for coache… --- ## [How often ssl\_stapling\_file picks up an updated file?](https://www.ruby-forum.com/t/how-often-ssl-stapling-file-picks-up-an-updated-file/241409)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 1\ **Last updated:** [April 5, 2015, 9:18pm UTC](https://www.ruby-forum.com/t/how-often-ssl-stapling-file-picks-up-an-updated-file/241409 "2015-04-05T21:18:55Z")
Hey all. Before I file a bugreport I’d like to consult with community to make sure whether I get the whole thing right. I use ssl\_stapling\_file and update that file daily. Today I discovered that one of my SSL websi… --- ## [What is the use of Lambda in Ruby?](https://www.ruby-forum.com/t/what-is-the-use-of-lambda-in-ruby/233452)
**Author:** [@addis\_a](https://www.ruby-forum.com/u/addis_a)\ **Replies:** 1\ **Last updated:** [December 14, 2014, 7:24pm UTC](https://www.ruby-forum.com/t/what-is-the-use-of-lambda-in-ruby/233452 "2014-12-14T19:24:58Z")
Hi Guys, i am learning ruby on rails and i am little bit confuse about the use of Lambda. can anybody help me to understand the use of Lambda? --- ## [Ngx.location.capture\_multi multiple posts](https://www.ruby-forum.com/t/ngx-location-capture-multi-multiple-posts/220755)
**Author:** [@aris](https://www.ruby-forum.com/u/aris)\ **Replies:** 1\ **Last updated:** [June 20, 2012, 8:32am UTC](https://www.ruby-forum.com/t/ngx-location-capture-multi-multiple-posts/220755 "2012-06-20T08:32:56Z")
Hello, I try to use ngx.location.capture\_multi to send multiple post requests: upstream \_server1 { server server1:80; } upstream \_server2 { server server2:80; } server { listen 10.0.0.254:80; server\_name server… --- ## [What naming conventions do you use when writing i18n yaml files?](https://www.ruby-forum.com/t/what-naming-conventions-do-you-use-when-writing-i18n-yaml-files/219306)
**Author:** [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Replies:** 1\ **Last updated:** [April 27, 2012, 8:56pm UTC](https://www.ruby-forum.com/t/what-naming-conventions-do-you-use-when-writing-i18n-yaml-files/219306 "2012-04-27T20:56:39Z")
Do you follow naming conventions when writing i18n yaml files? If so, what are they? For example, say you have a “Save changes” button that PUTs to users\_controller.update. What would you call it? users.edit.update\_… --- ## [Is "it\_should\_behave\_like" a code smell?](https://www.ruby-forum.com/t/is-it-should-behave-like-a-code-smell/207988)
**Author:** [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Replies:** 1\ **Last updated:** [June 7, 2011, 6:21pm UTC](https://www.ruby-forum.com/t/is-it-should-behave-like-a-code-smell/207988 "2011-06-07T18:21:50Z")
Consider the following simple Rails app: ==== begin snippet ==== lib/herpable.rb module Herpable; …; end app/models/… class ClassOne; include Herpable; end class ClassTwo; include Herpable; end … ==== end snippet… --- ## [Citrix secure gateway and nginx](https://www.ruby-forum.com/t/citrix-secure-gateway-and-nginx/199821)
**Author:** [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\ **Replies:** 1\ **Last updated:** [November 30, 2010, 9:36am UTC](https://www.ruby-forum.com/t/citrix-secure-gateway-and-nginx/199821 "2010-11-30T09:36:10Z")
Hi group, Does anyone use nginx as reverse proxy on front of Citrix secure gateway (CSG)? Basically, the path will go like this internet \<–\> nginx \<–\> firewall \<–\> CSG I know CSG will use ports 443. 80. 1494, but n… --- ## [Partial rendering results in a blank page?](https://www.ruby-forum.com/t/partial-rendering-results-in-a-blank-page/164948)
**Author:** [@niczm25](https://www.ruby-forum.com/u/niczm25)\ **Replies:** 1\ **Last updated:** [April 7, 2009, 6:27pm UTC](https://www.ruby-forum.com/t/partial-rendering-results-in-a-blank-page/164948 "2009-04-07T18:27:41Z")
I’m stuck with a bug at the moment which is puzzling me. I have a layout containing some HTML and a partial (for the navigation) - there is nothing else there other than the yield. If the nav is included as a partia… --- ## [Git push](https://www.ruby-forum.com/t/git-push/158789)
**Author:** [@raker\_t](https://www.ruby-forum.com/u/raker_t)\ **Replies:** 1\ **Last updated:** [January 28, 2009, 12:26am UTC](https://www.ruby-forum.com/t/git-push/158789 "2009-01-28T00:26:44Z")
As you may have seen via the RSS feed, I have pushed a new IronRuby revision out. This still requires the MERLIN\_ROOT variable and the CSPROJ has load issues due to SpecSharp.targets, but both of those are being phase… --- ## [Fcgi-handler crasht](https://www.ruby-forum.com/t/fcgi-handler-crasht/150741)
**Author:** [@rbjl](https://www.ruby-forum.com/u/rbjl)\ **Replies:** 1\ **Last updated:** [October 12, 2008, 1:23pm UTC](https://www.ruby-forum.com/t/fcgi-handler-crasht/150741 "2008-10-12T13:23:15Z")
ja hallo erstmal,… ich betreibe auf einem kleinen Server eine Hand voll Anwendungen mehr oder weniger produktiv mit mod-fcgid (OS ist Debian). Eine davon stürzt jedoch irgendwie ab, ohne das ich erkennen könnte, wora… --- ## [Phase accumulator](https://www.ruby-forum.com/t/phase-accumulator/145689)
**Author:** [@Sebastiaan\_H](https://www.ruby-forum.com/u/Sebastiaan_H)\ **Replies:** 1\ **Last updated:** [August 12, 2008, 11:32pm UTC](https://www.ruby-forum.com/t/phase-accumulator/145689 "2008-08-12T23:32:55Z")
Brian I had a look at some of the Verilog again. For a decimation of 8, decim\_strobe pulses every 64MHz/4 when FR\_DECIM\_RATE is equal to 3, so this is correct. hb\_strobe will then be 16MHz/2. I’m looking at the ph… --- ## [Adding parts the easy way (KISS-GUI)](https://www.ruby-forum.com/t/adding-parts-the-easy-way-kiss-gui/86464)
**Author:** [@nexflo](https://www.ruby-forum.com/u/nexflo)\ **Replies:** 1\ **Last updated:** [February 22, 2007, 3:42pm UTC](https://www.ruby-forum.com/t/adding-parts-the-easy-way-kiss-gui/86464 "2007-02-22T15:42:55Z")
Hey guys, I just got into Radiant, and I’m loving the simplicity of it. But I can already hear my end clients nagging, coz they cant remember part names and whatelse… well I just solved that by making a stupid simple… --- ## [Problems trying to feed a user agent header to Net::HTTP.get](https://www.ruby-forum.com/t/problems-trying-to-feed-a-user-agent-header-to-net-http-get/58444)
**Author:** [@Xeno\_C](https://www.ruby-forum.com/u/Xeno_C)\ **Replies:** 1\ **Last updated:** [April 21, 2006, 7:47pm UTC](https://www.ruby-forum.com/t/problems-trying-to-feed-a-user-agent-header-to-net-http-get/58444 "2006-04-21T19:47:56Z")
Say, I thought I had this working at one point, but I don’t now seem to be able to feed a user agent header to the get\_response, nor the get method now. Presumably I was mistaken to believe I ever had it. Can someon… --- ## [GEM and module? Could a GEM be a module?](https://www.ruby-forum.com/t/gem-and-module-could-a-gem-be-a-module/245413)
**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\ **Replies:** 4\ **Last updated:** [May 29, 2013, 12:52am UTC](https://www.ruby-forum.com/t/gem-and-module-could-a-gem-be-a-module/245413 "2013-05-29T00:52:50Z")
Hello, I have written a library that calculates dates based on CRON specifications. I’d like to publish it as a GEM. In order to avoid name collisions, I create a module (“Cron”) that holds all the classes that build… --- ## [Dynamically create an array](https://www.ruby-forum.com/t/dynamically-create-an-array/225068)
**Author:** [@aris](https://www.ruby-forum.com/u/aris)\ **Replies:** 4\ **Last updated:** [December 10, 2012, 10:52pm UTC](https://www.ruby-forum.com/t/dynamically-create-an-array/225068 "2012-12-10T22:52:32Z")
Hi Experts, I am trying to create an array from hash example in my hash I have value like grades = { { “subject” =\> english, “Jim” =\> 94, “Billy” =\> 58 } { “subject” =\> math, “Jim” =\> 90, “Billy” =\> 80 } { "… --- ## [Rails 2.3.5 to Rails 3.2 error](https://www.ruby-forum.com/t/rails-2-3-5-to-rails-3-2-error/221796)
**Author:** [@aris](https://www.ruby-forum.com/u/aris)\ **Replies:** 4\ **Last updated:** [August 3, 2012, 9:14am UTC](https://www.ruby-forum.com/t/rails-2-3-5-to-rails-3-2-error/221796 "2012-08-03T09:14:21Z")
I have installed the latest version of rails and jruby. I have copied all my files from rails 2.3.5 version and am trying to bring all to work in this version Project.rb class Project \< ActiveRecord::Base has\_and\_bel… --- ## [How to load a selection list into the method new of a controller?](https://www.ruby-forum.com/t/how-to-load-a-selection-list-into-the-method-new-of-a-controller/220089)
**Author:** [@Gurdipe\_D](https://www.ruby-forum.com/u/Gurdipe_D)\ **Replies:** 4\ **Last updated:** [May 29, 2012, 12:32am UTC](https://www.ruby-forum.com/t/how-to-load-a-selection-list-into-the-method-new-of-a-controller/220089 "2012-05-29T00:32:42Z")
Hi friends! I’m relatively new with Rails and I’m struggling for a long time with this problem (it should have a pattern solution but until now I didn’t find it): I have the following models: Institution, City, Stat… --- ## [Array handling trouble for new guy](https://www.ruby-forum.com/t/array-handling-trouble-for-new-guy/218232)
**Author:** [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Replies:** 4\ **Last updated:** [March 25, 2012, 3:11pm UTC](https://www.ruby-forum.com/t/array-handling-trouble-for-new-guy/218232 "2012-03-25T15:11:04Z")
Greetings all, I’m dipping my toes into Ruby and have hit a stumbling block. I’m attempting to write a random name generator as an exercise for myself. So far I’ve got it reading from a data file but can’t seem to ge… --- ## [Problem on hash with default value](https://www.ruby-forum.com/t/problem-on-hash-with-default-value/213974)
**Author:** [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Replies:** 4\ **Last updated:** [November 17, 2011, 7:09pm UTC](https://www.ruby-forum.com/t/problem-on-hash-with-default-value/213974 "2011-11-17T19:09:18Z")
Hi, I face the following issue with a hash having an empty array as default value. I don’t how to describe it in English, here is an illustrative code: hash = Hash.new Array.new hash\[:a\] = \[1\] hash\[:b\] \<\< 2 puts h… --- ## [Integrate facebook](https://www.ruby-forum.com/t/integrate-facebook/205218)
**Author:** [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Replies:** 4\ **Last updated:** [April 1, 2011, 8:19am UTC](https://www.ruby-forum.com/t/integrate-facebook/205218 "2011-04-01T08:19:40Z")
can u tell me how to integrate facebook in ruby on rails application please give me help --- ## [Helper to generate css-id from AR model. Do I have alzheimers?](https://www.ruby-forum.com/t/helper-to-generate-css-id-from-ar-model-do-i-have-alzheimers/199697)
**Author:** [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\ **Replies:** 4\ **Last updated:** [November 28, 2010, 3:22am UTC](https://www.ruby-forum.com/t/helper-to-generate-css-id-from-ar-model-do-i-have-alzheimers/199697 "2010-11-28T03:22:12Z")
On one of the many Rails projects I’ve worked on over the years, I seem to recall using either a helper or a method on a model to generate a css id based on the model class and id. It was very useful particularly in … --- ## [Form\_for arguments](https://www.ruby-forum.com/t/form-for-arguments/193309)
**Author:** [@swengineer](https://www.ruby-forum.com/u/swengineer)\ **Replies:** 4\ **Last updated:** [August 15, 2010, 10:34pm UTC](https://www.ruby-forum.com/t/form-for-arguments/193309 "2010-08-15T22:34:21Z")
At the following: Getting Started with Rails — Ruby on Rails Guides Under: 7.4 Generating a Controller It mentions the following: \<%= form\_for(\[@post, @post.comments.build\]) do |f| %\> Why should we insert TWO argumen… --- ## [DB structure of a translation Web service](https://www.ruby-forum.com/t/db-structure-of-a-translation-web-service/187922)
**Author:** [@oreng](https://www.ruby-forum.com/u/oreng)\ **Replies:** 4\ **Last updated:** [May 2, 2010, 9:03pm UTC](https://www.ruby-forum.com/t/db-structure-of-a-translation-web-service/187922 "2010-05-02T21:03:55Z")
I am building a Web service that will provide content for different client via Rest API. currently I have: content has\_many :keys (since many keys can reference the same content) content table has only one field - t… --- ## [Caching with Rails](https://www.ruby-forum.com/t/caching-with-rails/187178)
**Author:** [@gregm](https://www.ruby-forum.com/u/gregm)\ **Replies:** 4\ **Last updated:** [April 19, 2010, 1:33pm UTC](https://www.ruby-forum.com/t/caching-with-rails/187178 "2010-04-19T13:33:10Z")
Hi, I’ve been reading the Rails Guide about caching and I have a few questions about it. I’ve read that it is not possible to cache a page with url parameters, for instance ‘http://…/com/products/category\_id=5’. Am I… --- ## [Test database and migrations](https://www.ruby-forum.com/t/test-database-and-migrations/197128)
**Author:** [@grar](https://www.ruby-forum.com/u/grar)\ **Replies:** 4\ **Last updated:** [April 15, 2010, 7:31am UTC](https://www.ruby-forum.com/t/test-database-and-migrations/197128 "2010-04-15T07:31:37Z")
Hi, I’d like to have the results of a migration file that prepopulates my development database available for testing. So, right now, after the usual rake migration, I can access my prepopulated data via script/ conso… --- ## [Searching based on the return values of instance methods](https://www.ruby-forum.com/t/searching-based-on-the-return-values-of-instance-methods/183794)
**Author:** [@Learn\_by\_D](https://www.ruby-forum.com/u/Learn_by_D)\ **Replies:** 4\ **Last updated:** [March 8, 2010, 6:56pm UTC](https://www.ruby-forum.com/t/searching-based-on-the-return-values-of-instance-methods/183794 "2010-03-08T18:56:14Z")
Can I use something like searchlogic to search for objects based on the return values of instance methods? E.g., I’d like to search for users of a certain “age” but age is not a column, it’s an instance method, retur… --- ## [Gain Range error](https://www.ruby-forum.com/t/gain-range-error/181706)
**Author:** [@amarnath\_alapati](https://www.ruby-forum.com/u/amarnath_alapati)\ **Replies:** 4\ **Last updated:** [January 16, 2010, 8:47pm UTC](https://www.ruby-forum.com/t/gain-range-error/181706 "2010-01-16T20:47:57Z")
hi friends, When I tried to print the Transmitter gain range by the following commands, The output is as followss, \[root@localhost digital\]# python benchmark\_tx.py -f 2412M –show-tx-gain-range gr\_fir\_fff: using … --- ## [Jruby Snow Leopard Issue (JIT)](https://www.ruby-forum.com/t/jruby-snow-leopard-issue-jit/177732)
**Author:** [@chiefgeek](https://www.ruby-forum.com/u/chiefgeek)\ **Replies:** 4\ **Last updated:** [October 29, 2009, 8:05pm UTC](https://www.ruby-forum.com/t/jruby-snow-leopard-issue-jit/177732 "2009-10-29T20:05:53Z")
Anyone else seeing the problem on snow leopard, I constantly see it on my macbook air (Jruby 1.3.1) and now with the new release I’m starting to see it on my macbook also on Jruby 1.4RC2. :blush: jruby -S gem Erro… --- ## [How to Grab arguments in POST request?](https://www.ruby-forum.com/t/how-to-grab-arguments-in-post-request/176418)
**Author:** [@dennis\_cao](https://www.ruby-forum.com/u/dennis_cao)\ **Replies:** 4\ **Last updated:** [September 30, 2009, 3:19pm UTC](https://www.ruby-forum.com/t/how-to-grab-arguments-in-post-request/176418 "2009-09-30T15:19:32Z")
Dear ALL: how to Grab arguments in POST request? --- ## [Best practice question](https://www.ruby-forum.com/t/best-practice-question/172763)
**Author:** [@Ashley](https://www.ruby-forum.com/u/Ashley)\ **Replies:** 4\ **Last updated:** [July 28, 2009, 1:23am UTC](https://www.ruby-forum.com/t/best-practice-question/172763 "2009-07-28T01:23:26Z")
Hello guys! Question: Views should be “dumb” and models should deal with db queries… but what if you have a situation like so class User \< ActiveRecord::Base def has\_relationship\_with?( other\_user ) !relationships.… --- ## [Upgrade old rails app issues.. help](https://www.ruby-forum.com/t/upgrade-old-rails-app-issues-help/167340)
**Author:** [@SSSSRek2SSS](https://www.ruby-forum.com/u/SSSSRek2SSS)\ **Replies:** 4\ **Last updated:** [July 27, 2009, 7:26pm UTC](https://www.ruby-forum.com/t/upgrade-old-rails-app-issues-help/167340 "2009-07-27T19:26:25Z")
Hi I never had to upgrade someone elses rail application so this is getting a bit fustrating but mostly because I have no experience… I downloaded GrabTheMic download | SourceForge.net that has not been updated for … --- ## ["fallback" response code](https://www.ruby-forum.com/t/fallback-response-code/169820)
**Author:** [@phillipoertel](https://www.ruby-forum.com/u/phillipoertel)\ **Replies:** 4\ **Last updated:** [June 11, 2009, 1:30pm UTC](https://www.ruby-forum.com/t/fallback-response-code/169820 "2009-06-11T13:30:54Z")
I’m using a custom perl script in the following way: location ~ ^/resources { error\_page 404 @fallback; } location @fallback { perl MyModule::handler; } The fallback works as expected, apart from that it always re… --- ## [Same table, multiple DBs?](https://www.ruby-forum.com/t/same-table-multiple-dbs/169226)
**Author:** [@brian](https://www.ruby-forum.com/u/brian)\ **Replies:** 4\ **Last updated:** [June 1, 2009, 5:29am UTC](https://www.ruby-forum.com/t/same-table-multiple-dbs/169226 "2009-06-01T05:29:40Z")
I’m starting to think about how my application can scale if it needs to. This is all very premature - I don’t even have clear performance goals yet, much lest perf testing in place, so it may be unnecessary. However,… --- ## [Form\_remote\_tag does not update div](https://www.ruby-forum.com/t/form-remote-tag-does-not-update-div/164232)
**Author:** [@zeba-momin](https://www.ruby-forum.com/u/zeba-momin)\ **Replies:** 4\ **Last updated:** [March 30, 2009, 9:28am UTC](https://www.ruby-forum.com/t/form-remote-tag-does-not-update-div/164232 "2009-03-30T09:28:19Z")
Hello all, I’m using a form\_remote\_tag as: \<% form\_remote\_tag(:update=\>“statdiv”,:url =\> { :controller=\>:ticket,:action =\> :status }) do %\> E-mail \<%= text\_field… --- ## [USRP 2 Daughter Cards](https://www.ruby-forum.com/t/usrp-2-daughter-cards/160777)
**Author:** [@jim\_graham](https://www.ruby-forum.com/u/jim_graham)\ **Replies:** 4\ **Last updated:** [February 20, 2009, 1:56pm UTC](https://www.ruby-forum.com/t/usrp-2-daughter-cards/160777 "2009-02-20T13:56:19Z")
I am trying to use the USRP 2 radio. I have been using the rx\_streaming\_sample script to collect data. If I use the rfx1800 daughtercard the results from the set\_center\_freq command seem correct but the output looks… --- ## [Measuring SNR](https://www.ruby-forum.com/t/measuring-snr/160175)
**Author:** [@Swapna\_R](https://www.ruby-forum.com/u/Swapna_R)\ **Replies:** 4\ **Last updated:** [February 14, 2009, 1:50am UTC](https://www.ruby-forum.com/t/measuring-snr/160175 "2009-02-14T01:50:06Z")
Hi, I am trying to implement a particular channel coding technique as part of my work(Master’s Thesis). I need to test this technique in a fading channel. But since I have no control over the channel I cannot quanti… --- ## [Adventures in Optimization... or why CONST frozen is Good](https://www.ruby-forum.com/t/adventures-in-optimization-or-why-const-frozen-is-good/154591)
**Author:** [@amin1426](https://www.ruby-forum.com/u/amin1426)\ **Replies:** 4\ **Last updated:** [December 2, 2008, 4:39pm UTC](https://www.ruby-forum.com/t/adventures-in-optimization-or-why-const-frozen-is-good/154591 "2008-12-02T16:39:41Z")
…or when a language design level optimization is a pessimization. Ruby allows destructive string operations. String instance methods with a “Bang!” at the end. Consider this code. a = \[‘froot’\] b=a.first c = {“d”=\>b… --- ## [Rescue rails errors](https://www.ruby-forum.com/t/rescue-rails-errors/147491)
**Author:** [@mrdamien](https://www.ruby-forum.com/u/mrdamien)\ **Replies:** 4\ **Last updated:** [September 5, 2008, 8:49am UTC](https://www.ruby-forum.com/t/rescue-rails-errors/147491 "2008-09-05T08:49:00Z")
Hi all, Sometime, I get the following error in my application: ActionController::InvalidAuthenticityToken in ManageController#site\_servers ActionController::InvalidAuthenticityToken I tried to put the code in manage… --- ## [Jruby JIT question](https://www.ruby-forum.com/t/jruby-jit-question/147149)
**Author:** [@cremes](https://www.ruby-forum.com/u/cremes)\ **Replies:** 4\ **Last updated:** [August 29, 2008, 6:01am UTC](https://www.ruby-forum.com/t/jruby-jit-question/147149 "2008-08-29T06:01:15Z")
Let’s say I have a pair of objects setup in a publish-subscribe manner. Object A communicates to Object B by creating and sending a new instance of class C for every publish. class A include Observable def publish … --- ## [Grabbing html from pages that require login](https://www.ruby-forum.com/t/grabbing-html-from-pages-that-require-login/146251)
**Author:** [@scudco](https://www.ruby-forum.com/u/scudco)\ **Replies:** 4\ **Last updated:** [August 20, 2008, 3:34pm UTC](https://www.ruby-forum.com/t/grabbing-html-from-pages-that-require-login/146251 "2008-08-20T15:34:48Z")
Hi ive searched the forums already but couldnt come up with any concrete information. Ive written a script that accesses certain pages on ebay and scapes information. Its using open-uri to grab html and just standard … --- ## [Difficulty with gem install on osX](https://www.ruby-forum.com/t/difficulty-with-gem-install-on-osx/145944)
**Author:** [@rick](https://www.ruby-forum.com/u/rick)\ **Replies:** 4\ **Last updated:** [August 15, 2008, 11:34am UTC](https://www.ruby-forum.com/t/difficulty-with-gem-install-on-osx/145944 "2008-08-15T11:34:41Z")
New to the RoR world view and just learning about gems - I’ve hit a snag installing two separate gems that I can’t seem to get past with one of them. My environment is osX 10.5.4 on a ppc processor. I have gcc 4.1 (a… --- ## [Image\_voodoo and attachment\_fu](https://www.ruby-forum.com/t/image-voodoo-and-attachment-fu/145320)
**Author:** [@Matthew\_McKnight](https://www.ruby-forum.com/u/Matthew_McKnight)\ **Replies:** 4\ **Last updated:** [August 8, 2008, 5:00pm UTC](https://www.ruby-forum.com/t/image-voodoo-and-attachment-fu/145320 "2008-08-08T17:00:24Z")
I’m running into an error with image\_voodoo 0.4 and attachment\_fu, it doesn’t appear to be creating any thumbnails. No error messages…except on the view page where the public\_filename is coming up nil. Any ideas as … --- ## [Manipulation des fichier yaml](https://www.ruby-forum.com/t/manipulation-des-fichier-yaml/138575)
**Author:** [@kyo](https://www.ruby-forum.com/u/kyo)\ **Replies:** 4\ **Last updated:** [May 25, 2008, 5:07pm UTC](https://www.ruby-forum.com/t/manipulation-des-fichier-yaml/138575 "2008-05-25T17:07:09Z")
salut j’ai un ficher yaml qui contient : intitule: 0: Ventes 1: Achats 2: Banque 3: Caisse objet: 0: objet1 1: objet2 2: objet3 3: objet4 test: 0: test1 1: test2 je veux chargé ses information dans un selec… --- ## [Comportement ERB?](https://www.ruby-forum.com/t/comportement-erb/119030)
**Author:** [@Jean-Baptiste\_BARTH](https://www.ruby-forum.com/u/Jean-Baptiste_BARTH)\ **Replies:** 4\ **Last updated:** [November 2, 2007, 7:04pm UTC](https://www.ruby-forum.com/t/comportement-erb/119030 "2007-11-02T19:04:26Z")
Bonjour, Je débute en RoR et suis nouveau sur cette liste, donc tout d’abord merci de toutes les infos que vous m’avez déjà apporté sans le savoir :slight\_smile: Je me retrouve avec un comportement génant lors du pars… --- ## [RaislConf a Berlino?](https://www.ruby-forum.com/t/raislconf-a-berlino/114734)
**Author:** [@david](https://www.ruby-forum.com/u/david)\ **Replies:** 4\ **Last updated:** [September 25, 2007, 11:07pm UTC](https://www.ruby-forum.com/t/raislconf-a-berlino/114734 "2007-09-25T23:07:14Z")
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