I have a regular expression that returns multiple variables within a match. I am interested in the first non-null variable in a subset of indices within the match, so I am using result = a[1] || a[3] || a[6] || ... I would like to store the relevant indices in a configuration file along with the regular expression itself. What is the ...
require 'net/http' require 'uri' Net::HTTP.get_print URI.parse('http://www.example.com/index.html') when i tried to run this programm i getting error like this why?? c:/ruby/lib/ruby/1.8/net/http.rb:560:in `initialize': getaddrinfo: no address associated with hostname. (SocketError) from c:/ruby/lib/ruby/1.8/net/http.rb:560:in `o...
Hello there :) I am looking for a quite specific tool for generating charts, within Ruby on Rails application. I have done a research and couldn't find a solution that suits me. Maybe you've bumped upon it and could just point me to it with a link? :) My requirements for a solution are: it has to feature basic chart types like Pie, ...
Running Ubuntu Server 10.04 with Rails 2.3.4 and Webrick 1.3.1; our rails app runs fine when called via script/server -e production, but trying to test it as a daemon by calling it with the -d flag produces the following output: => Booting WEBrick => Rails 2.3.4 application starting on http://0.0.0.0:3000 Nothing is produced in the lo...
I'm trying to represent a relationship between users in my application where a user can have many followers and can follow other users. I would like to have something like user.followers() and user.followed_by() Could you please tell me in details how to represent this using ActiveRecord? Thanks. ...
For example, I have 4800 and I would like to see all the divisors of this number. # num = the number you want factors of def divisors_of(num) (1..num).collect { |n| [n, num/n] if ((num/n) * n) == num}.compact end divisors_of(4800) => [[1, 4800], [2, 2400], [3, 1600], [4, 1200], [5, 960], [6, 800], [8, 600], [10, 480], [1...
I have two Const with the same name; One is a global const, and the other is defined under the namespace Admin. But I need to distinguish them;The global one has already defined, and the scoped one need to auto defined if it has not been defined yet: A = 'A Global Const' module Admin A = 'A Const within the Admin namespace' if...
I've configured my Rails 2.3.8 logger in the environment.rb to rotate daily: config.logger = Logger.new("#{RAILS_ROOT}/logs/#{RAILS_ENV}.log", 'daily') and every day in the morning I get the usual: Error during failsafe response: Shifting failed. Is there a decent/elegant/better solution to this? What I've done in the past is just...
we are currently trying to package sqlite3 and sqlite3-ruby with an application that will be released as open source (ruby/rails based) i am evaluating if it is possible to package sqlite3-ruby for windows/linux and mac. my thoughts were, to download sqlite3-amalgamation, sqlite3-ruby on all the platforms and then compile on each. here ...
Using Ruby on Rails 3.0, I would like to have pages where posts have side-by-side translations. For example, a page would look like this +---------------+---------------+-----------------+ | Hello | Hola | Bonjour | +---------------+---------------+-----------------+ ... (there could be many more languages) | He...
I'm wondering what is the best pattern to allow large files to be uploaded to a server using Ruby. I've found Rails and Large, Large file Uploads: Looking at the alternative but it doesn't give any concrete solutions. I don't want to use Rails since I'm working on a simple upload server that'll run in standalone mode. I'm guessing tha...
How can a class method (inside a module) update an instance variable? Consider the code bellow: module Test def self.included(klass) klass.extend ClassMethods end module ClassMethods def update_instance_variable @temp = "It won't work, bc we are calling this on the class, not on the instance." puts "How can I ...
Im trying to add objects to an array by using push. I have a program where u can register guests. When I choose the checkin option from my menu Im unable to add the new guest to the guest history. This dont work: def self.check_in puts "Welcome to the checkin" puts "Please state your first name: " firstName = gets.chomp ...
Say we have a list of rooms with their capacities and a list of meetings with the number of attendees. We want to match each meeting with one room in the following way: A meeting can only be scheduled in a room with capacity equal to or greater than its attendance. If surplus rooms are present, meetings should be scheduled so that the ...
How do I render a view within another view... in rails... is it possible? ...
Is there any web language that allows the client itself to create HTTP posts to external sites. I know that JavaScript does this with XMLHttpRequest, but it does not allow cross-domain posting, unless the recipient domain wants to allow the sending domain. I want to post data to an external site (that I don't control) and have the requ...
Hi, I am trying to get a facebook fql query to work using the browser, I have a valid oauth token (I can make graph api calls with it). Here is the url I tried: https://api.facebook.com/method/fql.query?query=SELECT metric, value FROM insights WHERE object_id=89192912655 AND end_time=1280430050 AND period=86400 AND metric='page_fans'&a...
Does anyone know of any Ruby libraries/gems that allow you to traverse a DOM quickly? I need something which is fast, and doesn't have a lot of dependencies. I've been trying to use Nokogiri, but I'm concerned with the number of 'bug segmentation faults' I've been getting. ...
I can run a single rspec example with spec -e 'should be awesome' spec/models/stuff_spec.rb but how do I run an entire group ? describe 'GoodStuff' do it 'should be awesome' do true.should be_true end it 'want to run this too' do true.should be_true end end I've heard there's a spec -g option, but a) its not docume...
I am inserting data from CSV to database. While i am trying to insert this row 2 créditos,,,,R,75,, into my database i am getting this error Mysql::Error: Incorrect string value: '\xE9ditos...' for column 'message' at row 1: . ...