I am new to rails, but not to ruby, and the book I am reading (Pragmatic Programmers Agile Dev. with Rails 4th Ed.) just introduced me to unit tests in Rails. The book showed me the default rails testing suite (a subclass of Test::Unit). In the Rails community, is this the main testing framework that is used, because I use RSpec when doi...
In Ruby on Rails,I got a string number is made of 3 parts : prefix , counter , suffix In model Setup: def self.number prefix = setup.receipt_prefix.blank? ? "" : setup.receipt_prefix.to_s counter = setup.receipt_counter.blank? ? "" : setup.receipt_counter+1 suffix = setup.receipt_suffix.blank? ? "" : setup.receipt_suffix.to_s each i...
I'm trying to get started using the Google Data API for Google Book Search in my Ruby on Rails 3 application, and I don't even understand how to get started. What gems do I need? What do I need to do in order to do something simple like searching for books with a title of Foobar? ...
I'm using ActiveRecord and Ruby (outside of Rails) to track some statistics. I added a method (total_cost) to one of my models to do calculations using a couple of the columns in the current model as well as a column from another model. I'd really like to be able to use some of ActiveRecord's provisions for math (averaging, sums) and ...
On a page in a model, I'm showing two links 'Choose Picture' and 'Take Picture'. I'm suceessfully successfully returning to that page after choosing picture and the chosen image is being shown correctly. However, when I click 'Take Picture', camera opens up, I take picture, the calling page loads with image shown and then immediately the...
I have a problem validating a perfectly valid XML with it's schema file in Ruby. It works OK on my development machine (OS X 10.6) but fails everytime on the production system (Debian 4.1). The part of the XML that gives errors is this: <ROUNDINGS>-0.02</ROUNDINGS> And the XSD pattern is this: <xsd:element name="ROUNDINGS"> <xsd:s...
Hello. I need to transform ["a", "b", "c", "d"] to {:a => {:b => {:c => "d" }}} ? Any ideas ? Thanks ...
What I want to do: In a model.rb, in after_commit, I want to run rake task ts:reindex ts:reindex is normally run with a rake ts:index ...
Hi, Can someone please spend me some line of codes, that add a text at the bottom of an image? I want to use Rmagick but I'm open for other tools also. thank you! ...
Hi I'm looking for an equivalent of the haskell instersperse function in Ruby. Basically that add something (like a separator) between each element of a list. intersperse(nil, [1,2,3]) => [1,nil,2,nil,3,nil,4]. I'm not asking for any code (I can do it , and I'd probably have done it before you read the question). I'm just wondering ...
Hi, I have an Foo module, that it is namespace for many classes ie: Foo::Bar, Foo::Baz an so on. Is there an way to return all class names namespaced by Foo? ...
Hi! I want to execute some ruby code on the start of application. Actualy this is some SQL for creating all my tables if they are not already exists. Nowaday I should run my sql manualy (creating new tables ordinary), but I want to write somewhere in my helloworld.rb sql, which will execute sql once my app is started or restarded. Th...
I am using Ruby 1.9.1p430 (2010-08-16 revision 28998) on MS Ws7 with MS Office 2010 I have launched a copy of Word from Ruby using WIN32OLE: wd = WIN32OLE.new('Word.Application') All works fine, I can manipulate my document as required. However, the Word window is in the background and I would like to bring it to the foreground so th...
Netbeans 6.9 JRuby 1.5.0 rails 2.3.4 Error example: NoMethodError in Report#week Showing app/views/report/_list_record.html.erb where line #26 raised: You have a nil object when you didn't expect it! The error occurred while evaluating nil.sorting .... I can set up breakpoints, the debugger works fine. But when I have a NoSuch...
Often within the console, I'll interrogate an object pp obj.methods.sort #or... pp (obj.methods - Object.methods).sort In Ruby it's pretty common for a developer to provide aliases for methods. I am wondering if there is a reflective way of identifying aliases so that I might be able to display aliased methods, something like... arr...
hi, i'm getting an error when pushing to heroku using rails 3. I'm on windows with ruby 1.8.7 Administrator@WIN-DQC3IH63U7C ~/nasha (master) $ heroku rake db:migrate rake aborted! no such file to load -- mysql /disk1/home/slugs/280561_9c64ba2_1741/mnt/Rakefile:4 (See full trace by running task with --trace) (in /disk1/home/slugs/280561_...
I have an array that looks something like this: [[100, "one"], [101, "one"], [102, "one"], [103, "two"], [104, "three"], [105, "three"]] What I would like to do is create an array of hashes that looks like this [{"one" => [100,101,102]}, {"two" => [103]}, {"three" => [104,105]}] The number portion will always be unique, the ...
This is a newbie question around nginx and thin in the rails environment. In reading/learning on rails I frequently hear about nginx and thin being a great combination for a rails site. In reading the descriptions of each, they both describe themselves as web servers, so I'm a little confused at what the combination brings to the tabl...
In my view i want to diplay current date in mm/dd/yyyy format ...
I am working on a very large Rails application. We initially did not use much inheritance, but we have had some eye opening experiences from a consultant and are looking to refactor some of our models. We have the following pattern a lot in our application: class Project << ActiveRecord::Base has_many :graph_settings end class Graph...