SecureRandom -- Stop writing your own random number and string generators - Momoro Machine
Stop writing your own random string generators. Rails does this for you.
Related cards:
How to make changes to a Ruby gem (as a Rails developer)
At makandra, we've built a few gems over the years. Some of these are quite popular: spreewald (> 1M downloads), active_type (> 1M downloads), and geordi (> 200k downloads)
Developing a Ruby gem is different from developing Rails applications, w...
Ruby: Natural sort strings with Umlauts and other funny characters
Why string sorting sucks in vanilla Ruby
Ruby's sort method doesn't work as expected with special characters (like German umlauts):
["Schwertner", "Schöler"].sort
# => ["Schwertner", "Schöler"] ...
How to create Rails Generators (Rails 3 and above)
General
Programatically invoke Rails generators
: Require the generator, instantiate it and invoke it (because generators are Thor::Groups, you need to invoke them with invoke_all). Example:
require 'generators/wheelie/haml/...
Upgrading Cucumber and Capybara to the latest versions available for Rails 2
Specify these gem versions in your Gemfile:
gem 'cucumber', '~> 1.3.0'
gem 'cucumber-rails', '= 0.3.2' # max version for Rails 2
gem 'capybara', '< 2' # capybara 2+ requires Rails 3
gem 'mime-types', '< 2' # dependeny of capybara
...
Lightning Talk: Coverage based Test Case Prioritization in Ruby on Rails
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra. It has been written as a Ruby Gem and was tested and evaluated against one Ruby on Rails project....
Best practices: Writing a Rails script (and how to test it)
A Rails script lives in lib/scripts and is run with bin/rails runner lib/scripts/.... They are a simple tool to perform some one-time actions on your Rails application. A Rails script has a few advantages over pasting some prepared code into a R...
Ruby: Fixing strings with invalid encoding and converting to UTF-8
When dealing with external data sources, you may have to deal with improperly encoded strings.
While you should prefer deciding on a single encoding with the data-providing party, you can not always force that on external sources.
It gets worse wh...
Ruby and Rails deprecation warnings and how to fix them
Add deprecation warnings and their solution or link to available solutions.
Global access to Rake DSL methods is deprecated. Please include Rake::DSL into classes and modules which use the Rake DSL methods.
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How to get the hostname of the current machine in Rails or a Ruby script
Use Socket.gethostname. So for a machine whose hostname is "happycat", it will look like this:
>> Socket.gethostname
=> "happycat"
That should work right away for your Rails application. For plain Ruby, you first need to do:
requi...
The Exciter - Why You Should Deploy Your Next Application on Ruby 1.9 and a Rant in General
The rubyforge gems model may not be perfect, but damnit people, when there’s a gem update I know that it has actually been tested somewhat and it’s not just whatever random point HEAD happens to be at, at that point in time, by some random Joe who...