Adding index :unique to a column in ruby on rails via generate migration

ruby-on-rails database ruby-on-rails-3.2 migration

Starting from Rails 3.2 you able to use:

 rails g migration add_index_to_table_name column_name:uniq

 rails g scaffold Post title:string:index author:uniq price:decimal{7,2}

upd I'm sorry. The default type if you don't pass it would be string. You can pass type by yourself.

column_name:type:uniq

Thus your example should looks like:

rails g migration add_index_to_customers customerID:integer:uniq

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