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• What's the equivalent to "method reference" in Ruby

  - by Oscar Reyes

  for instance in python it is possible to assign a method to a variable: class MyClass def myMethod(self): return "Hi" x = MyClass() method = x.myMethod print method() # prints Hi I know this should be possible in Ruby, but I don't know what's the syntax.

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• Using autofocus and text_field form helpers in Ruby

  - by Lee

  How do I include the 'autofocus' attribute on an HTML5 form using the text_field form helper in ruby? e.g. <%= f.text_field :email % Where does autofocus go? Thanks

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• How to generate Ruby documentation using different template?

  - by htanata

  I want to generate the Ruby documentation with hanna template. How to do that? Or where can I download it if it's available at all? Using rdoc -o ~/doc --inline-source --line-numbers --format=html --template=hanna gives me docs with missing methods. It seems like it doesn't generate methods written in C.

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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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• 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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• cakephp or ruby on rails

  - by dole doug

  Hi there I've put some of my free time on reading/learning about cakephp but now I'm wondering if will not be better to switch completely to ruby on rails. Can you give me the good and the bad of those tools, when is about web-development? many thx

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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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• net/http post with Ruby

  - by Godwin

  Hello all, I have been trying to post blogs to Blogger via the API provided for posting but the problem I have is how to write the ruby code for the http post that will be able to carry the texts and make the post. In the API, it is stated that one has to First, create an XML representation of the post to publish. Please can someone help me with a suggestion. This is the API that was provided: "http://www.blogger.com/feeds/blogID/posts/default"

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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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• Ruby character encoding issue

  - by Roland Soós

  Hi, I write a little ruby script, which sends me an email when a new commit added to our svn. I get the log with this code: log = `/usr/bin/svnlook log #{ARGV[0]}` When I run my script from bash I get good encoded character in the email, but when I try it and create a new commit I get wrong hungarian characters. I commited this: tes oéá I get this in the email: Log: tes ?\197?\145?\195?\169?\195?\161 How can I solve this issue?

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• Checking deployed port in ruby on rails application

  - by john chan

  Is there an elegant way to check which port you deployed a ruby on rails application using mongrel? I could not find a directive (i.e. such as #{RAILS_ROOT} which contains the root directory of the application) that I can use to perform a check. I need this to do a check since I am deploying the same application on different ports and I need the app to do different things according to the port that is being accessed. Any help would be appreciated, Thanks

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• string.split method in ruby behaves funny to me

  - by Steve

  txt = "1aaa5" Then txt.split("a") produces [1, "", "", 5] in ruby 1.9. Anyone can explain why? Particularly, why not [1, 5]? Thanks.

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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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• Execute ruby code in a link in Haml

  - by thermans

  I want to have a "delete user" link in a normal Activerecord table, but I can't figure out how to wrangle the inline ruby in haml. I have this: %tbody - @users.each do |user| %tr %td= user.name %td= user.login %td %a %img{:src => '../images/delete.png', :title => 'Delete user'} How do I make the - user.destroy be a clickable link in Haml?

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• url validation in ruby on rails

  - by jpallavi

  1)Url field should also accept url as “www.abc.com”. If user enters url like this, it should be automatically appended with “http://” resulting in value saved in database as “http://www.abc.com”. If user enters url as “http://www.xyz.com” system should not append “http://”. User should be able to save url with “https://”. what is the code for it in ruby on rails?

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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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• 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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• Ruby weird assignment behaviour

  - by jaycode

  Is this a ruby bug? target_url_to_edit = target_url if target_url_to_edit.include?("http://") target_url_to_edit["http://"] = "" end logger.debug "target url is now #{target_url}" This returns target_url without http://

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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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• Nasty things user supplied ruby code in server can do

  - by nijikunai

  I'd like to run user supplied ruby code in server, what are the potentially nasty things that can happen? I mean things like deleting files etc. Can you give me more examples? Thanks in advance!

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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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• 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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• 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 bindings for Qt gui application.

  - by exvion

  How to create a Qt GUI applications with the ability to access it from the ruby script. Example: require 'myQt' myapp=myQt.new myapp.startQtGuiApp myapp.setValue('TextField1',45) value=myapp.getValue('TextField2')

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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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