Here is a little code snippet that will fire off a request to update_client_path when you change the select field. This stands alone, rather than being apart of a larger form. The Client::CATEGORY argument is a hash, which I populated manually in my Clien...

After installing Ruby Enterprise Edition, REE, and Passenger on Ubuntu you may see this error message when you run script/console for the first time ./script/console production # => Loading production environment (Rails 2.3.5) Rails requires RubyGems >=...

How much memory is on my linux server? Run the free command free -g total used free shared buffers cached Mem: 2 1 0 0 0 1 -/+ buffers/cache: 0 1 Swap: ...

You need a Mail Transfer Agent MTA on the server. The easiest way is to install Sendmail, which Git uses by default. apt-get install sendmail Remember that /etc/hosts file needs the ip address to map to the domain name your sending mail from # vim /et...

If you are having permission problems using git, such as error: insufficient permission for adding an object to repository database ./objects There are a couple thing you can do to remedy the situation, before moving to a full on git server like gitosis....

What is RVM and why should you use it? RVM is a Ruby interpreter, version management tool. In short, it enables you to switch between different versions and releases of Ruby (for instance, version 1.8.6, 1.8.7, jruby 1.9.2, ruby enterprise edition) on the...

Renaming routes in Rails 2.* is straight forward. It goes something like this. ## config/routes.rb map.resources :users, :as => :members This will give you users_path and form_for(User.new) helpers, for instance, mapping the url to /members instead of ...

Here is the Akismet.rb class, written by David Czarnecki. I've seen several tutorials online using this class, however, the class isn't available at David's blog. So... I reposted it here and at the pastie link below http://pastie.org/1150693 ...

gem server will boot up documentation on port 8808 by default pass it the -p flag followed by the port number to change. gem server -p3000

curl -i -F name=test -F filedata=@localfile.jpg http://example.org/upload Courtesy of http://ariejan.net/2010/06/07/uploading-files-with-curl/