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• Reading lists from a file in Ruby

  - by Gjorgji

  Hi, I have a txt file which contains data in the following format: X1 Y1 X2 Y2 etc.. I want to read the data from this file and create two lists in ruby (X containing X1, X2 and Y containing Y1, Y2). How can I do this in Ruby? Thanks.

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• Ruby on Rails Drawbacks

  - by Shay Friedman

  Ruby on Rails is maybe the most praised web development framework exist. There are tons of reasons for that, but every framework, even the best of its kind, has its drawbacks. I'd like to know the most common problems you run into when developing Ruby on Rails applications and the issues you often struggle with.

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• Vim syntax highlighting for ruby 1.9

  - by Peter

  Ruby 1.9 has a few new syntax elements, such as the {key: value} hash literal syntax. Has anyone written or seen an updated syntax/ruby.vim highlighting file that will highlight key: just like it highlights :key in {:key => value}?

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• warning: Insecure world writable dir when I run a ruby or gem command

  - by Trip

  Not sure why I'm getting this, but I just installed RVM, the new Ruby 1.9, and reinstalled a bunch of gems, and I get this /Users/johnsmith/.rvm/rubies/ruby-1.9.1-p378/bin/gem:4: warning: Insecure world writable dir /opt/local/bin in PATH, mode 040777 Everything still runs otherwise, but I was wondering if there was a way I could get rid of it.

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• Is their any tool that can create Ruby on Rail migration script of existing Database

  - by changed

  Hi I wanted to know if their is any tool that can be used to create sql migration script of existing database in Ruby on Rails. Also is their any visual tool that can be used to write Ruby on Rails migration script.

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• pg.so problem with Ruby in Windows

  - by Alexander

  I have installed the pg module with help of gem install pg Which returned Successfully installed pg-0.8.0-x86-mswin32-60 When a .rb-file looks like this require 'rubygems' require 'pg' I get an LoadError (exception 126) which tells me that it can't find the module C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.8.0-x86-mswin32-60/lib/pg.so. I heard…

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• Mimic C preprocessor with Python/Ruby?

  - by prosseek

  I need to mimic the preprocessor feature of C with Python. If I want to run the debug release, I use as follows with C #ifdef DEBUG printf(...) #endif I just use -DDEBUG or similar to trigger it on or off. What method can I use for Python/Ruby? I mean, what should I do to control the behavior of python/ruby scripts in such a way that I can…

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• Ruby LDAP and Active Directory

  - by Max

  Using Ruby LDAP running on Linux, I can create a new Active Directory user account without a problem. Now I want to be rename a user account username. When I try to change the sAMAccountName, it doesn't work. Is it possible to change an AD user account using Ruby LDAP? If so, how?

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• jruby and Matz Ruby on the same maschine ?

  - by erhard

  Is it possible to run Jruby and native ruby on the same maschine ? For example installing rake or gem under both it find's Matz Ruby extensions /usr/bin/gem or /usr/bin/rake The MRI gems and jruby gems are mixed up. Is there any experience in that constellation ? Thanks erhard

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• Ruby sleep or delay less than a second?

  - by Joseph Silvashy

  So I'm making a script with ruby that must render frames at 24 frames per second, but I need to wait 1/24th of a second between sending the commands... how can I do that? sleep seems to only wait in increments of 1 second or more. update Well ya you can do sleep 0.1 if you want, but is this the best way to delay in a ruby script?

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• Ruby on rails - how to retrieve connection strings

  - by Jett

  Hi Everyone, Are there any ways to retrieve the database connection string where my ruby is connected? what i would like to get is the: 1) Database name where the ruby is connected 2) The username of the SQL Server 3) Password of the SQL Server 4) Server name I want to store it in session variables. (I'am using MS SQL Server.) Please help!…

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• installing ruby on rails without an internet connection

  - by user126015

  hi all, I am trying to install ruby on rails in my own intranet, I don't have an internet connection. There are several tutorials out there that try to explain how to do so, but they don't seem to work. Does anyone know of a full installation (including ruby, rails, IDE) that doesn't demand downloading files from the internet? Thanks alot!

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• Why is "#{String}" a common idiom in Ruby

  - by Tetsujin no Oni

  A Ruby dev I know asked this; my answer is below... Are there other, better reasons? Why do so many Ruby programmers do "{string}" rather than string since the second form is simpler and more efficient?

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• Natural Language Processing in Ruby

  - by Joey Robert

  I'm looking to do some sentence analysis (mostly for twitter apps) and infer some general characteristics. Are there any good natural language processing libraries for this sort of thing in Ruby? Similar to http://stackoverflow.com/questions/870460/java-is-there-a-good-natural-language-processing-library but for Ruby. I'd prefer something very…

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• Need help converting Ruby code to php code

  - by newprog

  Yesterday I posted this queston. Today I found the code which I need but written in Ruby. Some parts of code I have understood (I don't know Ruby) but there is one part that I can't. I think people who know ruby and php can help me understand this code. def do_create(image) # Clear any old info in case of a re-submit …

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• Problem using a method in Ruby

  - by Rafal

  I'm very new to Ruby (and OOP as well) and I don't know why the following thing doesn't work in Ruby I extended the String class with a new method. Easy enough. Now I want to extend the Fixnum class. A String object appears somewhere in the class, but I can't use the method that I defined earlier. Why? Is this normal?

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• Improved UltraEdit wordfile for Ruby? (code folding)

  - by sutch

  The default Ruby wordfile in UltraEdit does not support code folding. Is there a Ruby wordfile for UltraEdit that does support code folding?

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• How to write to file in Ruby?

  - by ohana

  I need to read the data out of database and then save it in a text file, how can I do that in Ruby? Is there any file management system in Ruby? Thanks

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• Ruby: play, pause, resume aac (audio) files

  - by rahul

  I need to play, pause and resume AAC (audio) files from a ruby console program (much like iTunes or any music player). After much searching, I've come across these libraries: mp3info metadata id3lib-ruby rvideo (uses ffmpeg) These seem to help me in getting track length and tags which i also need, but I need…

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• undefined method `bytes' for for String in Ruby

  - by artsince

  I am working with ruby 1.8.6 (2007-03-13 patchlevel 0) [x86_64-linux] and I get undefined method `bytes' for #<String:0x2a95ec2268> (NoMethodError) even though my code works on ruby 1.8.7. patchlevel 249 I saw somewhere that you need to add require "jcode" for a similar method not defined error with each_byte. I…

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• Approaching Java from a Ruby perspective

  - by Travis

  There are plenty of resources available to a Java developer for getting a jump-start into Ruby/Rails development. The reverse doesn't appear to be true. What resources would you suggest for getting up-to-date on the current state of java technologies? How about learning how to approach DRY (don't repeat yourself) without…

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• ruby inject recursion?

  - by Matt Humphrey

  the goal is to start with ['a','b','c'] and end up with {'a'={'b'={'c'={}}}} so, getting my bearings, i did this: ruby-1.8.7-p174 ['a','b','c'].inject({}){|h,v| h.update(v = {})} = {"a"={}, "b"={}, "c"={}} and then figured, if i actually pass on the result hash, it will recurse and nest, but: ruby-1.8.7-p174 …

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• net/http post involving texts to a url using Ruby

  - by Godwin

  Hello all, I am writing a mobile App involving creating a Blogger client. I have the APIs that I need but the problem is how to write the ruby code for making a post using the texts beeing provided as well as making comments. The texts are supplied via form input but I don't know how to write the ruby code to post…

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• Ruby On Rails - XML-RPC

  - by Devin Ross

  Hey, I need to implement a ruby on rails project using XML-RPC. I have no idea where to get started but I've used ruby on rails before (just never with XML-RPC). Can someone help me out on get started with this?

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• Can't install Ruby on Rails on Wamp

  - by janoChen

  I followed this tutorial: http://stackoverflow.com/questions/2025449/how-to-install-ruby-on-rails-alongside-wampserver After adding D:\wamp\ruby\bin (my wamp folder is in D:) to my Path and write gem install rails in the command line I get 2 error which says that the following files couldn't be found: …

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