Erd¶ ↑

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

Requirements¶ ↑

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

gem 'erd'

Bundle it:

% bundle

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