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• Connect to MySQL in Ruby using NetBeans

  - by Varun

  I've downloaded the "dbd-mysql-0.4.4.zip" and linked it to my project. While I try to run a demo code from NetBeans the very first line require "dbi" gives me an error. Is there a different way to do it? I also tried jruby setup.rb config --with=dbi,dbd_mysql from the command prompt and it gave me the following error: config: unknown option --with=dbi,dbd_mysql Try 'ruby setup.rb --help' for detailed usage. Any suggestions please?

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• How to validate SSL certificate chain in ruby with net/http

  - by maledictus

  How can I verify the certificates of a site like https://processing.ukash.com/ in ruby with net/http? https = Net::HTTP.new('processing.ukash.com', 443) https.use_ssl = true https.verify_mode = OpenSSL::SSL::VERIFY_NONE Works so far, but how do I verify that it's the right cert now? I saved the certificate from within firefox, but the resulting .pem file has many certificates in it and net/http doesn't seem to like it.

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• Switching Ruby on Rails databases

  - by Marco

  Hi, I'm starting learning Ruby on Rails. So my application, like every Rails app, has three databases: Development Test Production And the question is: how do i switch from a db to another? Thanks

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• What's the __repr__ equivalence in ruby?

  - by prosseek

  The repr function is fancy as it is called when print OBJECT is used automatically? Is there a ruby equivalence for it? I thought it was to_s, but, I had p OBJECT doesn't seem to call the to_s method.

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• Getting a user country name from originating IP address with Ruby on Rails

  - by TK

  I want to extract a user country name from visitors' IP addresses. I could get the IP address with remote_ip. But what could be the easiest way to get the country name? It doesn't have to be super accurate. Any ruby library (gem or plugin) to do this? I want an simple and easy solution for this.

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• Extract number from string in Ruby

  - by Oscar Reyes

  I'm using this code: s = line.match( /ABCD(\d{4})/ ).values_at( 1 )[0] To extract numbers from strings like: ABCD1234 ABCD1235 ABCD1236 etc. It works, but I wonder what other alternative I have to to this in Ruby?

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• how does Enumerable#cycle work? (ruby)

  - by Radek

  looper = (0..3).cycle 20.times { puts looper.next } can I somehow find the next of 3? I mean if I can get .next of any particular element at any given time. Not just display loop that starts with the first element. UPDATE Of course I went though ruby doc before posting my question. But I did not find answer there ...

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• Tools for development SOAP-service on Ruby 1.9

  - by aaz

  Which set of libraries and tools would you recommend to use for development SOAP-service on Ruby 1.9 - soap-tools, web-servers, or maybe a web-framework?

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• Custom formats in Ruby on Rails

  - by Koning Baard XIV

  I'm creating a website in Ruby on Rails, where users can login using RESTful Authentication. Someone can get a specific user using html, xml and json, just like scaffolding. But I want to add one more format: vCard (e.g. /users/1.vcard). This has a specific format, but how do I define my own formats? Using views, or must I use another way? Thanks

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• Planning to create PDF files in Ruby on Rails

  - by deau

  Hi there, A Ruby on Rails app will have access to a number of images and fonts. The images are components of a visual layout which will be stored separately as a set of rules. The rules specify document dimensions along with which images are used and where. The app needs to take these rules, fetch the images, and generate a PDF that is ready for local printing or emailing. The fonts will also be important. The user needs to customize the layout by inputting text which will be included in the PDF. The PDF must therefore also contain the desired font so that the document renders identically across different machines. Each PDF may have many pages. Each page may have different dimensions but this is not essential. Either way, the ability to manipulate the dimensions and margins given by the PDF is essential. The only thing that needs to be regularly changed is the text. If this is takes too much development then the app can store the layouts in 3rd party PDFs and edit the textual content directly. Eventually though, this will prove too restrictive on the apps intended functionality so I would prefer the app to generate the PDF's itself. I have never worked with PDFs before and, for the most part, I've never had to output anything to the user outside their monitor. A printed medium could require a very different approach to get the best results. If anyone has any advice on how to model the PDF format this it would be really appreciated. The technical aspects of printing such as bleed, resolution and colour have already been factored in to the layouts and images. I am aware that PDF is a proprietary file format and I want to use free or open source software. I have seen a number of Ruby libraries for generating PDF files but because I am new on this scene I have no way to reliably compare them and too little time to implement and test them all. I also have the option of using C to handle this feature and if this is process intensive then that might be preferred. What should I be thinking about and how should I be planning to implement this?

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• Ruby library not found (no such file to load)

  - by Jeremy Gillick

  I manually placed a library in the library directory (/usr/local/lib/ruby/site_ruby/1.8) and when I try to require it, it says "no such file to load". I used "$:.first" to get the library path, so why wont it work? Is there any good way to debug this? Thanks

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• Why are Ruby projects so dominant at Github?

  - by timepilot

  Ruby is the most popular language at Github by far. Compare that with the questions at Stack Overflow or the TIOBE index. What is the reason for this difference in relative popularity in different places?

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• Anything like bpython for Ruby?

  - by macek

  IRb is pretty plain compared to bpython, even when using wirble. Is there any ruby equivalent of bpython?

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• JRuby-friendly method for parallel-testing Ruby on Rails app

  - by Toby Hede

  I am looking for a system to parallelise my tests in a Ruby on Rails app (using rspec, cucumber) that works using JRuby. The systems I can find (hydra, parallel-test) look like they use forking, which is problematic in a JRuby environment.

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• Get methods params type parsing wsdl file in a rails/ruby application

  - by Marco Sangiorgi

  Hi, I have a question about ruby and wsdl soap. I couldn't find a way to get each method's params and their type. For example, if I found out that a soap has a methods called "get_user_information" (using wsdlDriver) is there a way to know if this method requires some params and what type of params does it require (int, string, complex type, ecc..)? I'd like to be able to build html forms from a remote wsdl for each method... Sorry for my horrible English :D

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• convert Ruby to C languge

  - by alaamh

  I have seen this sample written in Ruby code, how i can simulate it in C language? Open3.popen3(command) do |stdin, stdout, stderr| @stop_stdin = stdin while !stdout.eof do output = stdout.read(1024 * 100) list_pipes.each do |out| out.print output end end end

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• Ruby on rails list to columns

  - by Ignas Rytoj

  How to create ruby on rails list(index page) like this: 1 | 2 | 3 4 | 5 | 6 7 | 8 | 9 10| 11| and so on.

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• Can't debug Ruby on Rails application in Netbeans 6.8

  - by wgpubs

  Every time I try to debug my Rails app via Netbeans I get a ... "Could not connect to web server - cannot show http://localhost:3000" Rails - 2.3.5 Ruby - 1.8.7-p249 Anyone know how to resolve this? Thanks

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• Ruby: execute a binary file in memory?

  - by John

  Is it possible to read binary in ruby file and execute it directly in memory? for example something like this: x = IO.read('/bin/ls') execute(x) I tried system(x) but it doesn't work ArgumentError: string contains null byte

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• Detecting OS X camera with Ruby

  - by Anon39393939

  I'd know how to do this with AS3, but ruby search turns up nothing. Any help please.

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• Ruby on rails multiple apps hosting (name server)- configuration question

  - by Sanjay

  I am looking to host multiple ruby on rails apps and want to use lighttpd or nginx.How do I do multiple name server configuration. ? I know how to do it in apache through webmin control panel.But trying to move away from apache here

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• Restrictons of Python compared to Ruby: lambda's

  - by Shyam

  Hi, I was going over some pages from WikiVS, that I quote from: because lambdas in Python are restricted to expressions and cannot contain statements I would like to know what would be a good example (or more) where this restriction would be, preferably compared to the Ruby language. Thank you for your answers, comments and feedback!

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• Handling of 'or' condidions in Ruby vs PHP

  - by Adam

  I'm not sure what to call this, so I'll give an example. In PHP 1==2 || 2 returns 1 or true In Ruby 1==2 || 2 returns 2 (The second statement if the first evaluates to false). Is there any short way to implement similar thing in PHP?

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• Best practices for handling binary data in Ruby?

  - by StackedCrooked

  What are the best practices for reading and writing binary data in Ruby? In the code sample below I needed to send a binary file using over HTTP (as POST data): f = File.new("resp.der", "r") # binary file begin while true out.syswrite(f.sysread(1)) # out is an output stream (type IO) end rescue EOFError => err puts "Sent response." end While this code seems to do a good job, it probably isn't very idiomatic. How can I improve it?

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• Can I generate a ruby on rails database migration file from a MySQL sql file

  - by PlanetMaster

  Hi, I have a sql script file that upon import creates a table in a MySQL database and fills it with 2800 record. These are all the postal codes for the country Belgium. Now I would like to make a Ruby on Rails database migration file from this. Any idea how I can do this? Thanks, Michael

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