Devise migration on existing model

Question

I\'m migrating from Authlogic to Devise.

UPDATED:

The migration of devise tries to re-create the table users, so i changed as you can see below the create_

Answer 1

add_column(:users, :database_authenticatable, {:null=>false})

You are not providing information for how this field is to be setup. It needs to be a string I think so you want to pass that information.

add_column :users, :database_authenticatable, :string,  :null=>false

More information about the error you are getting:

undefined method `to_sym'

That error for migrations is really frustrating because it lacks content, but what it means is that you got your migration in the wrong order.

For example - if you add a boolean file to the use model:

 add_column :users, :user_is_a_jackass, :boolean, :default => false

That will migrate ok. But if you do it like this:

add_column :users, :user_is_a_jackass, :default => false

You will get the same error because you are not telling the migration what field type it should be.