- Start by installing (as needed) Eclipse, RDT, and RadRails
- Use RadRails to setup a new blank Ruby on rails project
- In Eclipse, make sure that you switch to the "Rails perspective" (instead of the default "Java perspective")
- Design the database schema for your application and be sure to follow the RoR table naming conventions (e.g., a table named "users" for an automatically generated model for class "User", table "doc_acls" for model "DocAcl", etc.)
- Rails will want 3 databases with names ending in _development, _test, and _production). Create your development database with your application tables. Then, in Eclipse/RadRails, edit in the database information
- Outside of Eclipse, generate models and scaffolds; for example: "ruby script/generate scaffold User Admin", "ruby script/generate model Group", "ruby script/generate model GroupAcl", etc.
- Return to Eclipse/RadRails and do a "refresh" on your project so that Eclipse 'notices' all of the Ruby source files, .rhtml files, etc. that you just generated
- RadRails has a view (lower right part of Eclipse window) with a 'Server" tab - use this to start and stop WEBrick for testing. Point a web browser at http://127.0.0.1:3000
P.S.S. reader Murphee (thanks!) pointed out that you can use the New menu (in the Rails perspective)to create scaffoldsand models - no need to create these externally to Eclipse.