Set/Change Rails id auto increment value

Question

Is there a way for me to set the increment value of id in Rails? Instead of +1, to be +10 (or some other function I specify).

In MySQL there is an option @@auto_increment_increment. Is there a way to set in Rails through ActiveRecord? I am working with both Postgres.

Answer 1

Check the Rails 3.x guide on migrations: http://guides.rubyonrails.org/migrations.html

There is a example where they hardcode some sql

class SomeMigration < ActiveRecord::Migration

    def up
      execute <<-SQL
            ALTER TABLE xxx
      SQL
    end

end