How to Create a New Table With a Unique Index in an Active Record / Rails 4 Migration

Question

How do I create a new table, through a rails migration, and add an unique index to it?

In the docs I found how to add a index to a table after it\'s been created, but h

Answer 1

You can create the table and index with the generator without changing the migration file

For a unique index

rails generate model CreateFoos bar:string:uniq

For a non-unique index

rails generate model CreateFoos bar:string:index