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ruby-on-railsdatabaseruby-on-rails-4schema
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Reputation: 355924

Generating an image of a database schema used in a Rails app

How can I go about generating an image of a database schema used in a Rails app?

Upvotes: 32

Views: 11625

Answers (3)

Vlad Bokov
Vlad Bokov

Reputation: 373

For the sake of completeness there's ruby-toolbox/Rails_Class_Diagrams and besides rails-erd it mentions railroady which looks abandoned, but still works now (at least with rails 8 and graphviz 12)

Upvotes: 0

David Lowenfels
David Lowenfels

Reputation: 997

try this ruby gem: https://voormedia.github.io/rails-erd

It will make a PDF, which you can also customize.

Upvotes: 0

Tom
Tom

Reputation: 15970

Have you tried rake db:schema:dump?

Essentially, make sure that your database.yml file is referencing the database you wish to dump, and then run the command. It'll take all of the tables and indexes in said database and then write it out to schema.rb.

Note that you should rename schema.rb once it contains the dump; otherwise, it could it overwritten.

Upvotes: 6

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