I am going to be away from the internet for a few weeks and would still like to get a project done. What steps should I take to make sure I have access to the things I need (ruby and ROR) while I will be disconnected? ...
Looking at this block, I can follow the whole program until I hit, sum += square. What is he point of this line, what does it say??? sum = 0 [1, 2, 3, 4].each do |value| square = value * value sum += square end puts sum ...
Do the following two lines of code behave in exactly the same way despite slightly different implementations values.map{ |k,v| __send__('%s=' % k.to_s, v) } values.map{ |k,v| __send__("#{k.to_s}=", v) } The second line would be a more common ruby idiom so I was wondering why the other method was used when this was in the Rails Core wh...
I am currently trying to install the gem nfoiled, which provides a ruby interface to ncurses. I do this by using gem install elliottcable-nfoiled as suggest in the README. Downloading it manually from the github repository and then installing it with rake install doesn't work because of a problem with the echoe-gem, thus I am bound to us...
I have a private method in my controller. which is used for some database update. this method i am calling from another controller method. and it works fine. But when i am trying to write a test case for that method then It is tripping on accessing (session variable and params) in my functional all other methods are working fine the pro...
I have an indexed model called Article and I don't want solr to index unpublished articles. class Article < ActiveRecord::Base searchable do text :title text :body end end How can I specify that article that is not #published? should not be indexed? ...
I can't seem to figure out what I am doing wrong here. I have implemented the Super Simple Authentication from Ryan Bates tutorial and while the login portion is functioning correctly, I can't get an error message and redirect to happen correctly for a bad login. Ryan Bates admits in his comments he left this out but can't seem to imple...
I would like to talk to a interactive bash process. Here is an example, so you know what I want to archieve: Program starts a new bash process. User types "ls" into my program. Program sends this command to the bash process. Program reads all available output of the bash (including the prompt) and displays it back to the user. GOTO 1 ...
How can I get the first character in a string using Ruby? Ultimately what I'm doing is taking someone's last name and just creating an initial out of it. So if the string was "Smith" I just want "S". ...
Hi I have a rails model that I am adding validations to and I seem to have run into a bit of weirdness from one of the validators. So here is the table I am working with (From schema.rb): create_table "clients", :force => true do |t| t.string "name" t.string "last_contact" t.integer "contacting_agent" t.date ...
I'm working on 2 cases: assume I have those var: a = "hello" b = "hello-SP" c = "not_hello" Any partial matches I want to accept any string that has the variable a inside, so b and c would match. Patterned match I want to match a string that has a inside, followed by '-', so b would match, c does not. I am having problem, because...
How I can add my own field types to formtastic ? For exemple, I need to have a custom datetime input, and I want something like this: <%= f.input :start_date , :as => :my_date %> This obviously doesn't work because formtastic doesn't know the :my_date (only :boolean, :string, :datetime and so on...) But how can I add additional inpu...
I have successfully installed the Clearance Gem from ThoughtBot. Clearance sends a confirmation email upon a new sign_up and suggests adding: config.action_mailer.default_url_options = { :host => 'localhost:3000' } to your /environments/test.rb and development.rb. I have tried this and also config.action_mailer.default_url_options =...
Hi guys, Is there a way to have treat google serach results as an rss feed? For example say I worked for stackoverflow and wanted to montior how if the results from the following search url: http://www.google.com/search?hl=en&q=stackoverflow changes from day today. It would be cool if I could append &output=rss to the url and get ...
Suppose I have this range: ("aaaaa".."zzzzz") How would I get the Nth item from the range without generating the entire thing before hand/each time? ...
I'd like to be able to use ruby's OptionParser to parse sub-commands of the form COMMAND [GLOBAL FLAGS] [SUB-COMMAND [SUB-COMMAND FLAGS]] like: git branch -a gem list foo I know I could switch to a different option parser library (like Trollop), but I'm interested in learning how to do this from within OptionParser, since I'd like ...
i would like a single alias (ts) which starts my local development server. the script should test for an open port starting at 3000 and use the first available port. additionally, some sites require a rackup file, making -R config.ru necessary. this script should check the current directory for the config.ru file and add that to the alia...
Hi, all. I have application with 2 groups of models - content based (news, questions) and "something" based (devices, applications etc). I need to link all models between groups - for example question may belongs to 3 different things - one application and 2 devices. The same - for news. From other side - i need to see all news articles ...
how do i transform www.bestbuy.com/site/Electronics\Audio\abcat0200000.c=3fid=3dabcat0200000 into its original format ? www.bestbuy.com/site/Electronics/Audio/abcat0200000.c?id=abcat0200000 urldecode ? ...
I have an installation of ruby 1.9.1 ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32] when I try and run a rake task I am getting an error: rake aborted! no such file to load -- ftools C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' C:/Ruby/lib/ruby/gems/1.9.1/gems/act...