ruby

rails2 and aws-simple (simpledb): data cannot be deleted from amazon simpledb?

i am developing a ruby on rails (2.3.8) application with data storage amazon simpledb. i am using the aws-sdb gem in the version aws-sdb (0.3.1) there are a few bugs, but the problems are outlined in the comments of this tutorial from amazon: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=1242 i am wondering if it ...

How to deal with Denial of Service attack and Session fixation and Cross Site request forgery in Rails?

Hi, I have just started learning Ruby on Rails. I happened to look for prevention of DNS attacks in Rails and ended up reading about DNS, Session fixation and Cross Site request forgery in Rails? How do you prevent all the above three attacks?? Could you suggest me a good tutorial on how to deal with attack in RoR? Looking forward f...

Rails — Params with "dot" (e.g. /google.com)

How to make form Google.com param (e.g. /some_action/Google.com) a single param, but not "id"=>"Google", "format"=>"com" ? So i need "id"=>"Google.com" ...

Anything like bpython for Ruby?

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

Java method introspection from JRuby

Is there a way from JRuby to introspect on a Java object and find out its Java-land methods? Like what http://github.com/oggy/looksee provides, but for Java. Or like (someobject).methods - 1.methods This would be nice for just taking a look at what a Java object provides versus the APIDoc for it. ...

Ruby Module Inclusion in Methods

In class Foo I'd like to include method Bar under certain conditions: module Bar def some_method "orly" end end class Foo def initialize(some_condition) if !some_condition "bar" else class << self; include Bar; end end end end Is there any cleaner (and clearer) way to achieve the incl...

Is Ruby on Rails suitable for a non-web application?

I am interested in developing a workstation-based application that communicates with a proprietary data server and that presents information from that server to the user. I am not intending the user interface to be browser-based, and have been considering Qt as my framework. Should I consider RoR for this? Thanks. ...

How do you check the Gem Version in Ruby at Runtime?

Is it possible to check the gem version of the currently loaded gem in a ruby/rails app? During debugging, I would like to be able to do something like: puts RubyGem.loaded_version(:active_support) Anything like that exist? ...

[BUG] Bus Error - What causes this in Ruby?

I have run into this error 5 or 10 times over the past few years and have never found a clear answer to this problem. Here is the error: $ rake db:migrate /usr/lib/ruby/gems/1.8/gems/libxml-ruby-0.9.5/lib/libxml_ruby.bundle: [BUG] Bus Error ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin9.7.0] Abort trap The app I am running thi...

Installing The ruby-gmail rubygem on Mac OS Snow Leopard

I'm working off these instructions: http://github.com/dcparker/ruby-gmail From the home directory I do a standard install and good stuff happens: Johnny-Goodmans-MacBook-Pro:gmail johnnygoodman$ sudo gem install ruby-gmail Successfully installed ruby-gmail-0.2.1 1 gem installed Installing ri documentation for ruby-gmail-0.2.1... Insta...

High concurrent request server in ruby

I'm trying to write a simple server that will grab an mp3 file from rackspace cloudfiles, and stream it to a client over HTTP. The server must be able to stream to multiple clients simultaneously, however, I'm finding it difficult to come up with a viable solution. Anyone have some ideas? ...

Advantages/disadvantages of Python and Ruby

Possible Duplicate: What does Ruby have that Python doesnt, and vice versa? I know this is going to seem a little like all the other python vs ruby question out there, but I'm not looking specifically to pick one over the other all the time. My question is, essentially, why would you use one language over the other when you a...

rails question find no result

Hey.Guys! Now .I have a question ,i want someone to help me to solve it ,the log of the problem like the under text >> Department.find(EmeReference.find(:all,:select =>:ref_config_id,:conditions=>"emergency_id = 1")) ActiveRecord::RecordNotFound: Couldn't find Department with ID=0 from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib...

Rack Stream Content

I have a simple rack app that's designed to marshal data from Rackspace CloudFiles, however it doesn't seem to be working. I'm a complete noob when it comes to rack, so I'm hoping someone can show me the follies of my ways. require 'rubygems' require 'cloudfiles' class StreamingFile def initialize(id) user = "<CLOUDFILES USERNAM...

Any non-rails ruby forum application out there?

I have a rather complete application based on sinatra. I feel in need for an easy to integrate forum module (code, extension, etc.). Running a parallel Rails application is not an option on my tiny VPS plan (I even use redis to keep a small footprint). A sinatra based forum would be great news. Thanks ...

how to check string is valid date or not in rails

Hi All, i have a string say "31-02-2010" now i want to check that wheather this date is valid date or not . what is the best way to do it? so i need a method which i operate on string which returns true if date is valid and false if it's invalid. ...

rais belong_to which class to choose

There is a model relation like this. class A belongs_to :ref_config,:class_name => 'User' end My question is : the A has a attribute named flag, now i want to create a function like this: if flag == 1, I want the class A like this belongs_to :ref_config,:class_name => 'Department and if flag == 2, i want the class A like this ...

Inheritance in Ruby / Sinatra

Hi, I'm working on a ruby project using Sinatra as a framework and have a question about extending classes. Lets say I have a User class which is extended by an Admin, does the Admin have to be defined in User.rb? I've tried putting it in Admin.rb but I get an error saying: admin.rb:1: uninitialized constant User (NameError) Thanks....

Do you know of any non-rails ruby forum app?

I am rephrasing my earlier question. This time any answer about a non-rails ruby forum application, be it sinatra based or not, will be fine. Thanks ...

ruby library for GDF file

Does anyone know a ruby library to handle GDF (Geographic Data File) files ? ...