What's the correct syntax for remove_index in a Rails 3.1.0 migration?

Question

I\'m in the process of adding Devise to an existing Rails app, with a Users table already defined. The devise generator pushed out the following migration:

class         


        

Answer 1

Depending on the database type, you don't need to worry about removing the indexes in the self.down method since the index will automatically be removed from the database when you drop the column.

You can also use this syntax in your self.down method:

def self.down
   remove_column :users, :email
   remove_column :users, :encrypted_password
   remove_column :users, :reset_password_token
end