The mysql2 gem in version 0.3.13 might break while compiling on older patch releases of Ruby 1.9.3 within rvm:
dusen 0.4.8 and edge_rider 0.2.3 no longer depend on Rails (they still depend on ActiveRecord). That means you can...
Do not use .rvmrc files to specify Ruby version and gemset configuration any longer, it's deprecated and not considered...
After running bundler / gem install I could not load nokogiri lately. It died with cannot load such file -- nokogiri/nokogiri.
bundle open BUNDLED_GEM will open the BUNDLED_GEM's source code in your default editor.
Bundler 1.4.0 (still beta) can install gems in parallel, making a run of bundle install much faster.
Ruby's private keyword might do a lot less than you think. "private" does not apply to class methods defined...
RubyLTS is a long term supported fork of Ruby 1.8 that will continue to receive security updates for the forseeable...
The new exception_notification has awesome options like :ignore_crawlers => true and :ignore_if => lambda {...
...}. These options should be helpful...
Consul 0.9 comes with many new features to optimize powers that only check access to a given record. e.g. Power.current.post...
The linked page lists and explains global Ruby "dollar" variables, such as: $: (load path) $* (ARGV) $? (Last exit status) $$ (PID)
Ruby 1.9 brings a shorter way to define lambdas using the -> operator: twice = -> (x) { 2 * x } twice.call(5) # => 10
Using CSS sprites for background images is a technique for optimizing page load time by combining smaller images into a...
Next time you have to do more than trivial CSS changes on a project, you probably want to have live...
Did you know you can do in-place batch processing with plain ruby? The following script will in-place replace...
This card shows how to upgrade a Rails 2 application from Rails 2.3.8 through every single patch level up to...
The Rails secret_token must be unique for each application and any instance of it. If not, someone could exploit...
Merge requests are often rejected for similar reasons. To avoid this, before you send a merge request, please confirm that...
Do it like this: attribute :active, Virtus::Attribute::Boolean Long story In Virtus you define attribute with their type...
Essential backports that enable many of the nice features of Ruby 1.8.7 up to 2.0.0 for earlier versions.
The Ruby on Rails security list archive can be found here: http://groups.google.com/group/rubyonrails-security You can subscribe to this mailing...
As Bill Dueber has on his blog, you can call rvm in the shebang to select a Ruby version like...
Note: These instructions are for a quick per-project setup and may require you to change code. If you generally...
You can detect city and country from an IP address by using the GeoLite database. This is a flat file...