Hi all. Could you show me live code examples of integration authlogic-openid and recaptcha? I want to prevent users from registering using they own openid-servers to create multiple accounts and use it for spam. Also could you help me plz to understand - how to check confirmed? field on creation UserSession for openid registered users?...
I receive input in the form of URL strings (aka controller/action?example=yes), and I'm wondering if I need to escape the content of the string for security. For example, if I assign the param to a variable: example = params[:example].to_s do I need to escape anything? or do I only apply h() when I put the value of :example back in t...
It took me a while to understand how private methods work in Ruby, and it really strikes me as being very awkward. Does anyone know if there are good reasons for private methods to be handled the way they are? Is it just historic reasons? Or implementation reasons? Or are there good solid logical reasons (ie. semantic)? For example: c...
The Problem I'm working on a problem that involves sharding. As part of the problem I need to find the fastest way to partition a large Ruby hash (> 200,0000 entries) in two or more pieces. Are there any non O(n) approaches? Is there a non-Ruby i.e. C/C++ implementation? Please don't reply with examples using the trivial approach ...
Is there an easy way to determine if a year is a leap year? ...
class A private def initialize puts "wtf?" end end A.new #still works and calls initialize and class A private def self.new super.new end end doesn't work altogether So what's the correct way? I want to make new private and call it via a factory method. ...
In reference to this question: http://stackoverflow.com/questions/614309/ideal-ruby-project-structure I noticed that appname.rb is in lib, and is top level. I was reading through a little of the Rake source code on Github, and I noticed their project structure is pretty much the same. They have a top level 'rake.rb' file in /lib, but I'...
I'd like some thoughts on whether using fork{} to 'background' a process from a rails app is such a good idea or not... From what I gather fork{my_method; Process#setsid} does in fact do what it's supposed to do. 1) creates another processes with a different PID 2) doesn't interrupt the calling process (e.g. it continues w/o waiting f...
I need to implement fine-grained access control in a Ruby on Rails app. The permissions for individual users are saved in a database table and I thought that it would be best to let the respective resource (i.e. the instance of a model) decide whether a certain user is allowed to read from or write to it. Making this decision in the cont...
code: c = 0 items.each { |i| puts i.to_s # if c > 9 escape the each iteration early - and do not repeat c++ } I want to grab the first 10 items then leave the "each" loop. What do I replace the commented line with? is there a better approach? something more Ruby idiomatic? ...
I need to delete an application (MyApp.app), which has read only permissions in all its enclosed folders. Before I delete it, I should change the permissions on all enclosed files/directories to 0644. How do I do this recursively? I've tried begin; FileUtils.chmod(0644, '#{config.appPath}'); rescue; end begin; FileUtils.rm_r('#{config....
I have the following (returning two separate result sets) being successfully executed from a proc but cannot do the same when executing this as a basic query. SELECT * FROM persons; SELECT * FROM addresses; Possible? What's the syntax? EDIT: I am using Ruby's DBI library: dbh.query("SELECT * FROM persons; SELECT * FROM addresses;"...
I have the ruby version manager installed and use the ruby implementation installed by RVM set to the default so that 'which ruby' shows '~/.rvm/ruby-1.8.6-p383/bin/ruby' yet when I open an inf-ruby buffer in emacs, it uses the ruby installed in /usr/bin. Is there a way to get emacs to respect the path for ruby the same way the she...
[EDIT NOTE: Noticed I had put the mutex creation in the constructor. Moved it and noticed no change.] [EDIT NOTE 2: I changed the call to app.exec in a trial run to while TRUE do app.processEvents() puts '." end I noticed that once the Soap4r service started running no process events ever got called again] [EDIT NOTE 3: Cr...
I am trying to code a word descrambler like this one here and was wondering what algorithms I should use to implement this. Also, if anyone can find existing code for this that would be great as well. Basically the functionality is going to be like a boggle solver but without being a matrix, just searching for all word possibilities from...
I'm not clear on how to write simple byte code arrays with ruby, more-so I'm absolutely stumped on how to use the Ruby SerialPort library, well to be honest I have it working pretty well however I have only been successful in sending ASCII over the serial port. For example it's really simple to write ASCII: @sp = SerialPort.new "/dev/...
If I have a time variable in Ruby, how could I say that it refers to an event that happened one of the following: "x minutes ago" or "x hours ago" or "x days ago" Obviously if something happened 2 days ago, I would not want to say it happened such-and-such minutes ago. ...
This is just a hypothetical question, if you wouldn't have the Array and the Hash class, would there be any way of implementing an Array class in pure Ruby? How? ...
Hello, I have a created a userdriven gallery with Ruby on Rails.The site is using a few plugins to create friendly links, permissions, pageless pagniation etc. The application controllers and views has gotton quite complex and I find it difficult and very time consuming to work with. So I thought about rebuilding the app with hobo, as i...
I'm using Ruby and Rake to do our builds at the moment for .Net projects. I call a few commandline tools, such as NCover to check the coverage is high enough. When NCover returns and exit (fail) code though, Rake exits immediately stops. Is there a hook, like on_exit, that I can use. I basically want to output "Build FAILED" in nice re...