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`, and `drop table`
Then, Erd generates migration files on the server
And you can run each migration on your browser

Better design
Better UI
Fix buggy JS
create table (we need to generate AR model file at the same time)
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)