Do I need Ruby/ ruby on Rails installed before . . . .

Do I need Ruby/ Rails installed on my system in order to be able to develop rails applications using Raidrails ??

The answer is YES. Before using RaidRails to develop rails application you will need to install and configure a few other things on your computer.

The steps will be as follows:

Install Ruby on Rails
Install RadRails
Configure RadRails


source : http://www.aptana.com/docs/index.php/Installing_and_configuring_RadRails