A Rails engine for drawing your app’s ER diagram and operating migrations

• Rails 4.0, 3.2, or 3.1

• Graphviz

Add ‘erd’ gem to your existing app’s Gemfile:

gem 'erd'

Bundle it:

% bundle

Browse at your localhost:3000/erd

• Erd draws an ER diagram based on your app’s database and models

• You can drag and arrange the positions of each model

• You can operate DB schema manipulations such as ‘add column`, `rename column`, `alter column`, `create model (as well as table)`, and `drop table`

• Then, Erd generates migration files on the server

• And you can run each migration on your browser

• Fix buggy JS

• drop column (need to think of the UI)

• stop depending on rails-erd and Graphviz

• tests

• cleaner code (the code is horrible. Please don’t read the code, though of course your patches welcome)

• Send me your pull requests!

• Akira Matsuda

• Teppei Machida (design)

Copyright © 2012 Akira Matsuda. See MIT-LICENSE for further details.