User.find :all, :select => "DISTINCT occupation"

Heroku is awesome! Let's say we want to copy a production database to a staging database. We can use the `pg:backups:restore` command to accomplish this. Here is an example. For the source database we are using the `production-app-name` and for stagi...

Stateless components are nice. They are simple to use and understand but can become tricky when you start thinking about data and how to manage state. In general, the consensus seems to be that if your UI is going to need state, then at least the componen...

While writing software it's common to leave comments for your future self. For instance, if you have written some code but realize that it should be refactored to be more efficient, you may place something along the lines of "TODO: change active record fi...

Uncompress a bz2 file using tar command tar --use-compress-program bzip2 -xvf your-file-to-uncompress.tar.bz2 @source http://www.kde.gr.jp/help/doc/kdebase/doc/khelpcenter/faq/HTML/bzip2.html...