Hello, I’m fairly new to Ruby, but I am trying to understand the relationship between database structure and models. My difficulty is that I have five or so tables all linked together and their primary key column is…
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## [Graphing - best approach? (Google Chart API, Flash, RMagick...?)](https://www.ruby-forum.com/t/graphing-best-approach-google-chart-api-flash-rmagick/135535)
Hi, I want to include some graphs in my RoR application. Any recommendation re where I should jump. I’ve already gone through an RMagick installation for other purposes. Want it to be relatively straight forward,…
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## [Looking for XML parsers in Ruby](https://www.ruby-forum.com/t/looking-for-xml-parsers-in-ruby/127454)
Hi, I am looking for a validating XML parser for ruby. I found that there are libxml-ruby and ruby interface to expat available. Could someone please tell me which is the better in terms of performance and functional…
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## [Changing a files' content](https://www.ruby-forum.com/t/changing-a-files-content/122070)
hi all, i have a text file with various lines, and i want to alter some of these using regex and gsub. so i have patterns={/some\_pattern/=\>“replacement text”} and i’m thinking this: in = File.open(filename) while (…
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## [Lone Star Ruby Conf 2007](https://www.ruby-forum.com/t/lone-star-ruby-conf-2007/104598)
Howdy I am pleased to announce the first annual Lone Star Ruby Conference: Lone Star Ruby Conf 2007 September 7-8, 2007 Norris Conference Center Austin, TX You can take the …
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## [Ruby noob using array for databse lookups](https://www.ruby-forum.com/t/ruby-noob-using-array-for-databse-lookups/85390)
I have this model… class Meeting \< ActiveRecord::Base MEETING\_TYPES = \[\[‘General’ , ‘g’\], \[‘Special’ , ‘s’\], \[‘AGM’ , ‘a’\]\] end I have generated scaffolding and the edit and create are working as expected. Howeve…
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## [Module Definition Idioms](https://www.ruby-forum.com/t/module-definition-idioms/98361)
Looking at HTree, I see a few more things that seem weird to me, but which are probably perfectly normal Ruby: file: parse.rb module HTree def HTree.parse … def def HTree.parse\_xml … end … def Text.parse\_cdata…
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## [Fixtures, Postgres & Constraints](https://www.ruby-forum.com/t/fixtures-postgres-constraints/56081)
Anyone have any tips for handling postgres constraints when using fixtures to load the database, other than to sort out the proper insertion orders or leaving the constraints out? I’d prefer not to do the former since…
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## [Glimmer DSL for SWT 4.26.0.0](https://www.ruby-forum.com/t/glimmer-dsl-for-swt-4-26-0-0/263535)
Glimmer DSL for SWT (JRuby Desktop Development GUI Framework) has just had a major release for the quarterly update of the Eclipse SWT library, which is now up to version 4.26. Glimmer DSL for SWT now matches it with ver…
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## [Test:integration Expected response to be a \<:redirect\>, but was \<404\>](https://www.ruby-forum.com/t/test-integration-expected-response-to-be-a-redirect-but-was-404/165936)
Hello, I’m trying to write some tests and I get a failure error on one test, which I am not sure why or where is my mistake. In my test/integration/product\_test.rb I have: require ‘test\_helper’ class ProductTest \< A…
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## [Building an app with someone else's web design](https://www.ruby-forum.com/t/building-an-app-with-someone-elses-web-design/232404)
I’m building a backend for a web-design created by someone else (that I’m working with). I’ve been provided with a bunch of html files (most, but not necessarily all, to be converted to html.erb files), a bunch of .js…
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## [\[JOBS\] Ruby on Rails Technical Developer](https://www.ruby-forum.com/t/jobs-ruby-on-rails-technical-developer/232675)
Being more of an implementer than a mathematical theorist, I’m having trouble “translating” the “language” spoken by our local Matlab/Simulink boffins. What’s the proper way to implement an “Integrate and Dump” opera…
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## [Problem with "TCP Source" module in the client mode](https://www.ruby-forum.com/t/problem-with-tcp-source-module-in-the-client-mode/239530)
Hi all! I am trying to build following simple scheme: Signal source --\> TCP Sink (server mode) \<---- TCP Source (client mode) –\> GUI Scope Sink It’s strange but this simple scheme isn’t working. sockstat shows me: …
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## [Error\_page without content type](https://www.ruby-forum.com/t/error-page-without-content-type/228982)
Hi I’m setting a custom 404 page with: server { … error\_page 404 /errors/not-found.html; } And the page looks as follows: \ Seite …
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## [Announce take over the release manager of Ruby 2.1.0](https://www.ruby-forum.com/t/announce-take-over-the-release-manager-of-ruby-2-1-0/228639)
I, Naruse, take over the release manager of Ruby 2.1.0 from mame. Ruby 2.1.0 is planed to release in 2013-12-25. I’m planning to call for feature proposals soon like 2.0.0 \[ruby-core:45474\], so if you have a suggesti…
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## [How do you handle \*consuming\* java libraries that use Class.forName?](https://www.ruby-forum.com/t/how-do-you-handle-consuming-java-libraries-that-use-class-forname/227903)
Hi All, Google has shown me several workarounds for not using Class.forName, but I just spent a day and a half figuring out that the reason a java library I was consuming fails under JRuby but works fine with a sim…
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## [Limit serving to responses only below certain size](https://www.ruby-forum.com/t/limit-serving-to-responses-only-below-certain-size/227178)
Hi, Is there a way to server files only below a certain size? eg. Return 403 on files bigger than 5MB?
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## [Re: Happy Birthday Igor](https://www.ruby-forum.com/t/re-happy-birthday-igor/223327)
Thank you! – Igor S.
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## [Need Help With 'Form Letters' In This Event Manager Project](https://www.ruby-forum.com/t/need-help-with-form-letters-in-this-event-manager-project/223266)
Hi friends I am not getting any idea of solving the Iteration 6: Form Letters, in the following link… I am also attaching my .rb file. Please help me in solving it.
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## [Serving big files at constant rates](https://www.ruby-forum.com/t/serving-big-files-at-constant-rates/219725)
Hi, A recent thread kept my attention recently: I don’t have such a big trouble, but I don’t see how to solve it. My server usually serves small files suchas classical web pages. On a particular location, though, I …
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## [jQuery unload() wont work.Help](https://www.ruby-forum.com/t/jquery-unload-wont-work-help/218296)
jQuery unload() wont work.Help. while i close the browser,i let it alert.so i write $(window).unload(function() { alert(‘bye’); }); but it wont work. then.i write window.onbeforeunload = function(){alert(‘bye’)} s…
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## [SOT: HTML question about clickable area](https://www.ruby-forum.com/t/sot-html-question-about-clickable-area/217281)
On the development version of my Web app, the clickable area of some anchors is the text area and the padding (margin and border are both zero). On the production version, only the padding is clickable. Any hints o…
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## [Rspec testing (gunfight at coral)](https://www.ruby-forum.com/t/rspec-testing-gunfight-at-coral/216677)
Can any one give me an explanation on whats going on in this exercise. And any advice on how i should go about it. I dont need any exact codes just yet. But at least a good idea on how to start will be good Thanks Ex…
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## [Paperclip preserve files?](https://www.ruby-forum.com/t/paperclip-preserve-files/216105)
Hi, I am using paperclip to upload files. The problem I am facing is, based on my object property I need to preserve my file. Means my object should be deleted from db but the file need to be restored. I am using t…
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## [Build-gnuradio needs updates](https://www.ruby-forum.com/t/build-gnuradio-needs-updates/214475)
Hi all, I am a newcomer here. I previously use the build-gnuradio script to get a modern version of gnuradio and UHD. The script did a great job. But I guess some (small) updates are needed. One is related to udev co…
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## [Why returns nil?](https://www.ruby-forum.com/t/why-returns-nil/206620)
Hi everyone, I’d like some help to understand this method: def self.authenticate(email, submitted\_password) user = find\_by\_email(email) return nil if user.nil? return user if user.has\_password?(submitted\_password) #…
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## [How to run ./script/generate rx\_config?](https://www.ruby-forum.com/t/how-to-run-script-generate-rx-config/206190)
I’m a newbie and i’m working follow this link http://dima.github.com/2009/03/19/working-with-restfulx-model-attachments.html But I stuck on the step run ./script/generate rx\_config. I don’t know how can I run it. I tr…
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## [Test errors in fuctional test after adding before\_filter :login\_required to controller](https://www.ruby-forum.com/t/test-errors-in-fuctional-test-after-adding-before-filter-login-required-to-controller/205158)
Hello, I added the “before\_filter” to my controllers to require a login of the user. Here’s an example of my Unit Controller with the added before\_filter: IN THE ATTACHED FILE When executing the tests with rake test…
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## [What if I just delete a file from cache to invalidate cache item?](https://www.ruby-forum.com/t/what-if-i-just-delete-a-file-from-cache-to-invalidate-cache-item/199203)
I have a system handling tons of requests per second (god bless nginx). I have proxy\_cache\_key “$request\_uri”; proxy\_cache\_valid 200 1s; I need to increase the cache lifetime. What if I set proxy\_cache\_valid to …
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## [Unmarshall Exception error in using Jersey Java to call rest Apis](https://www.ruby-forum.com/t/unmarshall-exception-error-in-using-jersey-java-to-call-rest-apis/198428)
Hi, I am using Jersey to call the REST API in rails. I am having two tables as blogpost(id,title,desc) comment(id,commentdata) I am trying to write a method in java to post a comment and my url is /api/blogs/comme…
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## [Error generated after calling form\_for](https://www.ruby-forum.com/t/error-generated-after-calling-form-for/196139)
Hello list, I’m a fairly nooby Rails developer of very little brain, and this error has had me confused for the last several hours. It’s a very simple (unfinished) Rails app. It has a model called Tasks. It has a …
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## [Jrubyc bug triggered by more than 3 function arguments?](https://www.ruby-forum.com/t/jrubyc-bug-triggered-by-more-than-3-function-arguments/193141)
Hello List, I am having problems with jrubyc. It might be a bug. I wrote this file: #!/usr/bin/env jruby my\_class.rb require ‘java’ class MyClass def my\_fnc(a, b, c) end end I ran jrubyc: a@z2:/pt/z2/api$ a@z…
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## [Can not open link "http://gnuradio.org/svn/usrp-hw/trunk/USRP\_REV\_4\_2/"](https://www.ruby-forum.com/t/can-not-open-link-http-gnuradio-org-svn-usrp-hw-trunk-usrp-rev-4-2/189129)
Hi all, I want to get usrp board schematic, and this link is usrp board schematic pdf download link, however it can’t be open.
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## [Can't mass-assign these protected attributes: tag\_attributes](https://www.ruby-forum.com/t/cant-mass-assign-these-protected-attributes-tag-attributes/183454)
Hi, I added a textarea to my edit student form, to be able to add tags to this student. I did the simple code below, and this is the error i get. I can’t see what i did wrong… #Error message Processing StudentsContr…
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## [\[Bug #2179\] 1.9.2$B$K$\*$$$F(B block $B$N%9%3!\<%W$,$\*$+$7$$$H$-$,$"$k(B](https://www.ruby-forum.com/t/bug-2179-1-9-2-b-k-f-b-block-b-n-9-3-w-7-h-k-b/176810)
Bug #2179: 1.9.2e$B$K$$$$Fe(B block e$B$N%9%3!\<%W$,$$+$7$$$H$-$,$"$ke(B http://redmine.ruby-lang.org/issues/show/2179 e$B5/I\<\
**Author:** [@spitfire](https://www.ruby-forum.com/u/spitfire)\
**Replies:** 3\
**Last updated:** [September 2, 2009, 3:15pm UTC](https://www.ruby-forum.com/t/next-page-after-log-in/174697 "2009-09-02T15:15:07Z")
Hi, I have a best practice question: In my web apps you have to log in to show a certain Item, but you can show the item’s list without log in. Here are the steps: Items list page -\> click on certain Item -\> show “l…
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## [Capistrano e svn](https://www.ruby-forum.com/t/capistrano-e-svn/172185)
Ciao a tutti, Una domanda veloce veloce: E’ possibile fare un deploy di un applicazione rails con capistrano usando svn senza che sulla macchina di destinazione sia installato svn? Magari esiste una gemma che fa da w…
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## [Uploading to S3 without hitting the local server](https://www.ruby-forum.com/t/uploading-to-s3-without-hitting-the-local-server/165308)
Hi, I guess my question is rather simple, is it possible to upload to S3 without hitting the local server using Rails? If so, are there any tutorials or similar things around? PS: and what about being able to display …
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## [Logging embedded Perl return value](https://www.ruby-forum.com/t/logging-embedded-perl-return-value/165104)
I’m testing the embedded perl module. Is it possible to log the return value? i.e. can I set $return to capture the return value of the handler in this example? log\_format main ‘Return value is $return’; access\_log …
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## [\[Bug #525\] test\_convert(TestBignum) on NETBSD](https://www.ruby-forum.com/t/bug-525-test-convert-testbignum-on-netbsd/147328)
Bug #525: test\_convert(TestBignum) on NETBSD http://redmine.ruby-lang.org/issues/show/525 e$B5/I\<\
**Author:** [@jrochkind](https://www.ruby-forum.com/u/jrochkind)\
**Replies:** 3\
**Last updated:** [November 20, 2008, 4:09pm UTC](https://www.ruby-forum.com/t/rails-2-1-2-complex-find-involving-complex-include-bug/152618 "2008-11-20T16:09:51Z")
So I’m upgrading my app from Rails 1.2.6 to Rails 2.1.2. I have a complex find statement that worked in 1.2.6 and isn’t working in 2.1.2. I think maybe this is a bug, although maybe there’s something else I could be d…
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## [Automatically fill the page cache](https://www.ruby-forum.com/t/automatically-fill-the-page-cache/153254)
Hi, I have my whole site cached with page cache, because each page needs some time to render. What I would like to do is to delete all files in the cache (I have no problem with that). But after I have deleted everyt…
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## [Problem in text file transmission using USRP and GNU Radio (3.1.3)](https://www.ruby-forum.com/t/problem-in-text-file-transmission-using-usrp-and-gnu-radio-3-1-3/153038)
Hi, I have got GNU Radio (3.1.3) installed on Ubuntu 8.04. The installation is followed the guide (http://gnuradio.org/trac/wiki/UbuntuInstall). It works well with USRP on two laptops after running some tests, such a…
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## [Old Rails app: strange problem with getaddrinfo](https://www.ruby-forum.com/t/old-rails-app-strange-problem-with-getaddrinfo/151968)
Hi all I’m trying to get an old Rails App (RAILS\_GEM\_VERSION = ‘1.1.6’) to work again; Strangely I get the following error on most pages, and I don’t have any idea where it could come from: SocketError in Startseite…
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## [Routes, default\_url\_options and languages](https://www.ruby-forum.com/t/routes-default-url-options-and-languages/113957)
Hello, My app is available in 2 languages, English (en) and French (fr). I would like all my URLs to look like this : /fr/companies /en/companies I’ve setup this route : map.connect ‘:lg/:controller/:action/:id’ I…
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## [Error en open\_flash\_chart](https://www.ruby-forum.com/t/error-en-open-flash-chart/143218)
hola lista estoy usando open\_flash\_chart para dibujar las graficas he hecho todo lo que pone la documentación pero me da un error que creo que es de ruta este es el error SWFObject is not defined \[Break on this err…
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## [Problem with redirect\_to and URL structure since upgrade to rails 2.0](https://www.ruby-forum.com/t/problem-with-redirect-to-and-url-structure-since-upgrade-to-rails-2-0/138199)
Hi, I have written a littel rails application with rails 1.x , and used something like redirect\_to :controller =\> “aaa” , :action =\> “bbb” , :id =\> 123 within a controller to jump into a different controller’s act…
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## [How do you populate a collection in a form from a dependent table?](https://www.ruby-forum.com/t/how-do-you-populate-a-collection-in-a-form-from-a-dependent-table/136013)
Hi, I’m working on a food program. The user defines foods, enters their calories, etc. Then the user goes into a day view with defines a meal by selected the foods from a drop down list. So I have a foods controlle…
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## [Link\_to\_remote with partial](https://www.ruby-forum.com/t/link-to-remote-with-partial/128143)
Hi all, I want to use a link and render a partial in the view i have got the following code on the net its not giving any error but i am unable to get the required result on page can anyone clarity my problem; give me …
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