ruby

Paypal Express Checkout with ActiveMerchant as in Shopify

Hi all, I'm successfully using Paypal Express Checkout in a marketplace web app passing for every seller the three parameters to the PaypalExpressGateway (login, password and signature). So, I see that Shopify lets the seller set only the e-mail address of the Paypal account requesting to grant scott_api1.jadedpixel.com as the API Par...

Hot deploy on Heroku with no downtime

A bad side of pushing to Heroku is that I must push the code (and the server restarts automatically) before running my db migrations. This can obviously cause some 500 errors on users navigating the website having the new code without the new tables/attributes: the solution proposed by Heroku is to use the maintenance mode, but I want a...

Ruby: execute a binary file in memory?

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 gives: ArgumentError: string contains null byte ...

What is the best way to format a date in JSON for Mongo DB storage

I have a date with a time. I'm using ruby, but the language shouldn't matter. d = "2010-04-01 13:00:00" What is the best way to format this date for Mongo DB? By 'best' I mean, is there a certain format I could use where Mongo would recognize it as a date and might give me more-advanced filtering optons? ie: If formatted correctly, c...

Find most common string in an array

I have this array, for example (the size is variable): x = ["1.111", "1.122", "1.250", "1.111"] and I need to find the most commom value ("1.111" in this case). Is there an easy way to do that? Tks in advance! EDIT #1: Thank you all for the answers! EDIT #2: I've changed my accepted answer based on Z.E.D.'s information. Thank...

Shell Script Sequencing with Rake

Hi All, I am working on a rake utility and want to implement something mentioned below: There are some shell commands in a sequence in my Rake file. What I want is that the sequence should wait for the previous command to finish processing before it moves to the next one. sh "git commit -m \"#{args.commit_message}\"" do |ok, res| # ...

Regex to extract this semi formatted data

Alright, I can't quite figure out how to do this. Given the following text: Roland AX-1: /start Roland's AX-1 strap-on remote MIDI controller has a very impressive 45-note velocity sensitive keyboard, and has switchable velocity curves, goes octave up/down, transpose, split/layering zones, and has fun tempo control for sequencers and...

Weird problems with ruby servers on Ubuntu 9.10

So I'm using Ubuntu 9.10, trying to setup and deploy my app, but for some reason, whenever I try and boot up thin, it tells me it can't find rails, script/console, however, works fine. Heck, even script/server works fine as long as I don't try and daemonize it, then it just fails without any errors. Any ideas on what the hell is going on...

How do I inherit abstract unit tests in Ruby?

I have two unit tests that should share a lot of common tests with slightly different setup methods. If I write something like class Abstract < Test::Unit::TestCase def setup @field = create end def test_1 ... end end class Concrete1 < Abstract def create SomeClass1.new end end class Concrete2 < Abstract de...

How long does each test take to run in Ruby on Rails?

Is there a way to get a report of how long each test is taking to run on a Ruby on Rails project? I have a a small set of tests, 2 or 3, which take about 50% of the time and I'd like to find out which ones are. ...

Is there a Rails authentication library which separates users from login methods?

In my mental model of authentication, a user should be distinct from the way they log in. So for example, a User could have an associated EmailLogin (with an email/password), or they could have many (or none). Similarly they could have 0..* associated OpenIDLogin credentials. Are there any existing authentication libraries for Rails whi...

How do I call a super class method

I have two classes A, and B. Class B overrides the foo method of class A. Class B has a bar method where I want to call the foo method of the super class. What is the syntax for such a call? class A def foo "hello" end end class B < A def foo super + " world" end def bar # how to call the `foo` method of the supe...

Vim syntax highlighting for ruby 1.9

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}? ...

Xapian gem failed to install on Mac OS X Snow Leopard + macports

I have installed xapian-core + xapian-bindings with macports on snow leopard, then trying to install xapian gem fails: Building native extensions. This could take a while... ERROR: Error installing xapian: ERROR: Failed to build gem native extension. /opt/ruby-enterprise/bin/ruby extconf.rb ./configure --with-ruby checking for a ...

xapian-full installed on mac os x snow leopard but failed with dlopen LoadError

Since I have tried to install xapian but failed, I try another alternative with xapian-full. Installation seems goes well, but when I try to write code with that I got toasted with error message again: irb(main):001:0> require 'xapian' LoadError: dlopen(/opt/ruby-enterprise/lib/ruby/gems/1.8/gems/xapian-full-1.1.3.4/lib/_xapian.bundle, ...

How to submit multipart messages using ActiveResource?

I am trying send user profile images from a client to the server using ActiveResource. It looks like ActiveResource doesn't support multi-part. Is there a gem/plugin that adds Multipart support to ActiveResource? Or any other alternative approach to addressing this issue. ...

Gem Load Error about whois command and removed cache

Hello, I have an awesome trouble with Gem. After executing this command: rm -f /usr/local/lib/ruby/gems/1.9.1/cache/* I can not do any thing. If I try for instance: gem cleanup I get this kind of answer: /usr/local/lib/ruby/gems/1.9.1/gems/gemwhois-0.1/lib/gemwhois.rb:3:in `require': no such file to load -- rubygems/commands/whois...

wrapp a function whose parameters are out type pointer to structure using swig

I have following function : typedef struct tagT{ int a ; int b ; }Point; int lib_a_f_5(Point *out_t) { out_t->a = 20; out_t->b = 30; return 0; } How should I direct the SWIG to generate the correct code for ruby (or lua)? When putting following statement to the interface file : %apply SWIGTYPE Point* {Point *out_t}; I got a warn...

Why is my html getting mal-formed?

I have the following table in a form that's embedded in a formtastic form (semantic_form_for). Everything I ask to be generated by ruby shows up, but the table gets badly mangled (essentially, the tags NEVER get formed. The table headers get drawn correctly There are 14 available_date objects that get passed, and they alternate betwe...

Wrong root on image_tag, include_tags, etc

On my dev setup, generated routes are mysteriously pointing to my public www server. <%= javascript_include_tag :defaults %> [yields] <script src="http://www.mysite.com//javascripts/prototype.js?1265304231" type="text/javascript"></script> <script src="http://www.mysite.com//javascripts/effects.js?1265304231" type="text/javascript"><...