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...

When I have a controller that takes more than one has_many argument, I think about creating a namespace. This way I may still use my forums, pages controllers w/out needing any conditional logic, testing for the presence of :course_id in the params hash. ...

Remember to include the host declaration in the database.yml file when you deploy to Dreamhost. Dreamhost does not use "localhost" which is typically the default setting when using the mysql adapter and developing locally or even on a small site. At lea...

paperclip is an awesome plugin for rails. it let's you attach an image to any of your models. installation and usage more information is available at http://jimneath.org/2008/04/17/paperclip-attaching-files-in-rails/ by default paperclip uses the image m...