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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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• 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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• Audio processing libraries for Ruby?

  - by J. Pablo Fernández

  Any recommendation on libraries to do audio processing in Ruby. I need to do the following two tasks: Find silences, for which I'm happy to just be able to iterate over each sample in the wave. Cut and paste pieces of wav files to form a new wav file. Convert wav to mp3, which I will probably leave to lame anyway. I'm looking for the equivalent of NAudio, a C# library.

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• Writing a file shredder in python or ruby?

  - by pmilb21

  In the effort to learn python and/or ruby, I was wondering how a file shredder would be implemented? I would like it to take in a file as an argument and then employ an algorithm to make that file unrecoverable. Would possibly add the support for multiple files or even whole directories later.

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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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• Automatically download files in Ruby

  - by Obinna

  I'm trying to write a ruby script which automatically downloads some files from some server ever 30-45 minutes (to prevent overload) as long as my computer is turned on. It's possible that my computer might be turned off at some point, but the download should resume (probably re-download the current file). I already have the file list but I can't figure out how to make such a script to run autonomously. What are some ways I can do this?

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• how to implement gmail client with ruby-on-rails

  - by poseid

  Hello, how would I develop an Email client in Ruby-on-rails taking Gmail as an example? I would be especially interested in the send email functions Thanks for any pointers

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• Ruby NTLM Library

  - by Scott Watermasysk

  Anyone have a good NTLM library recommend for Ruby? There is http://rubyforge.org/projects/rubyntlm/ but it has not been touched in quite a while.

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• Ruby javascript unescape equivalent

  - by vise

  I want to unescape the following string: '\u00020\u0002Standard\u00023\u0002Doe John\u000169\u0002\u0010\u0002Lorem\u0002\u0011\u0002Ipsum\u0002\u0014\u0002' Javascripts unescape function works ok, however how can I unescape it in ruby? Take in mind that unescape(previousString) is 0Standard3Doe John69LoremIpsum.

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• First step in Ruby on Rails

  - by ungalnanban

  Hi.. I am going to learn Ruby on Rails (ROR) , can any one help me how to write a "hello world" program and How can I run the program.

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• How to call cgi script from ruby

  - by Maddy

  Hello, I've a remote cgi script hosted on Apache using SSL. It takes in two input variables a and b. I want to call call the cgi script with right input variables using ruby. Any clues would be appreciated.

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• Is there a ruby equivalent of "python -i"?

  - by Steven

  ruby -n is the closest thing I found, but it repeats the whole script. Also it's not available for irb.

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