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  • Best way to get started with Facebook and Ruby on Rails

    - by TMB
    I'm looking to develop my first Facebook application and therefore looking for some advice on where to get started. I've spent a few hours browsing Facebook's Developer Wiki, Facebooker library, looking at the sample chapters in "Developing Facebook Applications with Rails" by Pragmatic Programmers, etc. Since FB is constantly changing their API, and Facebook Connect is newer than the aforementioned book, does anyone have any advice on where to get started?

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  • Looking to clean up a small ruby script.

    - by Badweather
    I'm looking for a much more idiomatic way to do the following little ruby script. File.open("channels.xml").each do |line| if line.match('(mms:\/\/{1}[a-zA-Z\.\d\/\w-]+)') puts line.match('(mms:\/\/{1}[a-zA-Z\.\d\/\w-]+)') end end Thanks in advance for any suggestions.

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  • Ruby: Allowing a module to have settings

    - by JP
    If I'm building a library in ruby, what's the best way to allow users of the library to set module-wide settings that will be available to all sub classes etc of the library? A good example would be if I'm writing a library for posting to a webservice: TheService::File.upload("myfile.txt") # Uploads anonymously TheService::Settings.login("myuser","mypass") # Or any other similar way of doing this TheService::File.upload("myfile.txt") # Uploads as 'myuser' The idea would be that unless TheService::Settings.logout is called then all TheService operations would be conducted under myuser's account. Any ideas?

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  • How to delete a "Recurly" account completely from ruby api

    - by Subrahmanyam Konduri
    Can anyone please tell me how to delete a recurly account. As, I have tried with the following commands, r = Recurly::Account.find(account_code) r.delete And also, I have tried with "r.destroy". But, it only changing the state of recurly account from "active" to "closed" and not deleting the account completely. I am using rails 2.3.11 for this application. Thanks in advance. K. Subrahmanyam.

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  • Ruby hash value truthiness and symbols

    - by John Topley
    Could somebody please explain why the variable named foo remains true in the code below, even though it's set to false when the method is called? And why the symbol version behaves as expected? def test(options = {}) foo = options[:foo] || true bar = options[:bar] || :true puts "foo is #{foo}, bar is #{bar}" end >> test(:foo => false, :bar => :false) foo is true, bar is false I've only tried this using Ruby 1.8.7.

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  • passing a parameter from an other model on ruby

    - by MAGE
    I'm very newbie in ruby and need your help. I must save a "Topic" and make it like this : @topic = Topic.new(params[:topic]) But I would like to pass an other information to this topic. It has a field "community_id" that link it to a community. The logged user has this information on his table. How can I pass the "community_id" from the logged user to the "community_id" of the "topic" created ? thx for your help

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  • Accessing objects memory address in ruby..???

    - by levirg
    hey Folks, Is there any way in ruby to get the memory address of objects.. say.. (i = 5) is that possible to get the mem address of that object 5.. I have been trying to get this over some time.., Any answer would be really appreciated... thanks, Regards levirg

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  • Getting a substring in Ruby by x number of chars

    - by wotaskd
    I'm trying to produce some Ruby code that will take a string and return a new one, with a number x number of characters removed from its end - these can be actual letters, numbers, spaces etc. Ex: given the following string a_string = "a1wer4zx" I need a simple way to get the same string, minus - say - the 3 last digits. In the case above, that would be "a1wer". The way I'm doing it right now seems very convoluted: an_array = a_string.split(//,(a_string.length-2)) an_array.pop new_string = an_array.join Any ideas?

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  • Ruby multiple background threads

    - by turri
    I need to run multiple background threads in a thread pool with timeout. The scheme is something like: #!/usr/bin/env ruby require 'thread' def foo(&block) bar(block) end def bar(block) Thread.abort_on_exception=true @main = Thread.new { block.call } end foo { sleep 1 puts 'test' } Why if i run that i get no output? (and no sleep wait?)

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  • ruby sortby 3rd element in a multidimential array npot working properly

    - by Steven
    Hi, I'm using ruby to sort an array where each element in the array is another array. I have this: Data = Data.SortBy { |Info| info[3] } example data in this column: 3.1 2 5.65 -1 0.4 -9.43 -10.87 -2.3 It should sort this into: 5.65 3.1 2 0.4 -1 -2.3 -9.43 -10.87 But it comes out like this: 5.65 3.1 2 0.4 -1 -10.87 -2.3 -9.43 It's only comparing the first char of the float... not the whole number?

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  • class_eval in ruby?

    - by fayer
    i dont understand class_eval in ruby. http://pastebin.com/RMnvTCyz what does the % mean? what does class_eval do? and where is (val) coming from? thanks

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  • Malthusian Growth Model in Ruby

    - by GregDean
    Hello. I am interested in modeling a Malthusian growth model in Ruby. Does anyone have any ideas, or are there any interesting libraries that cover this? Any help is appreciated. http://en.wikipedia.org/wiki/Malthusian_growth_model

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  • How to I make private class constants in Ruby

    - by DMisener
    In Ruby how does one create a private class constant? (i.e one that is visible inside the class but not outside) class Person SECRET='xxx' # How to make class private?? def show_secret puts "Secret: #{SECRET}" end end Person.new.show_secret puts Person::SECRET # I'd like this to fail

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  • Strange ruby syntax

    - by AntonAL
    Hi, what the syntax is in Action Mailer Basics rails guide ? class UserMailer < ActionMailer::Base def welcome_email(user) recipients user.email from "My Awesome Site Notifications <[email protected]>" subject "Welcome to My Awesome Site" sent_on Time.now body {:user => user, :url => "http://example.com/login"} end end How should i understand the construction, like from "Some text for this field" Is it an assignment the value to a variable, called "from" ?

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  • alternative to rescue in ruby ?

    - by wefwgeweg
    it seems like i have begin rescue end statements everywhere in my code. this doesn't seem like the correct thing to do. i am learning process, can anyone suggest how can i catch any exceptions without having to place everything inside begin,rescue, end. anyway to just tell ruby to shut up and just keep going even if exception is raised ?

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  • Pass variables between separate instances of ruby (without writing to a text file or database)

    - by boulder_ruby
    Lets say I'm running a long worker-script in one of several open interactive rails consoles. The script is updating columns in a very, very, very large table of records. I've muted the ActiveRecord logger to speed up the process, and instruct the script to output some record of progress so I know how roughly how long the process is going to take. That is what I am currently doing and it would look something like this: ModelName.all.each_with_index do |r, i| puts i if i % 250 ...runs some process... r.save end Sometimes its two nested arrays running, such that there would be multiple iterators and other things running all at once. Is there a way that I could do something like this and access that variable from a separate rails console? (such that the variable would be overwritten every time the process is run without much slowdown) records = ModelName.all $total = records.count records.each_with_index do |r, i| $i = i ...runs some process... r.save end meanwhile mid-process in other console puts "#{($i/$total * 100).round(2)}% complete" #=> 67.43% complete I know passing global variables from one separate instance of ruby to the next doesn't work. I also just tried this to no effect as well unix console 1 $X=5 echo {$X} #=> 5 unix console 2 echo {$X} #=> "" Lastly, I also know using global variables like this is a major software design pattern no-no. I think that's reasonable, but I'd still like to know how to break that rule if I'd like. Writing to a text file obviously would work. So would writing to a separate database table or something. That's not a bad idea. But the really cool trick would be sharing a variable between two instances without writing to a text file or database column. What would this be called anyway? Tunneling? I don't quite know how to tag this question. Maybe bad-idea is one of them. But honestly design-patterns isn't what this question is about.

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