Update Devise to version 2. Comes with some error that prevents the whole up from running, though.

db/migrate/20110514213956_devise_create_users.rb

@@ -1,16 +1,43 @@
 class DeviseCreateUsers < ActiveRecord::Migration
   def self.up
     create_table(:users) do |t|
-      t.database_authenticatable :null => false
-      t.recoverable
-      t.rememberable
-      t.trackable
+      ## Database authenticatable
+      t.string :email,              :null => false, :default => ""
+      t.string :encrypted_password, :null => false, :default => ""
 
-      # t.encryptable
-      # t.confirmable
-      # t.lockable :lock_strategy => :failed_attempts, :unlock_strategy => :both
-      # t.token_authenticatable
+      ## Recoverable
+      t.string   :reset_password_token
+      # t.datetime :reset_password_sent_at
 
+      ## Rememberable
+      t.datetime :remember_created_at
+
+      ## Trackable
+      t.integer  :sign_in_count, :default => 0
+      t.datetime :current_sign_in_at
+      t.datetime :last_sign_in_at
+      t.string   :current_sign_in_ip
+      t.string   :last_sign_in_ip
+
+      ## Encryptable
+      # t.string :password_salt
+
+      ## Confirmable
+      # t.string   :confirmation_token
+      # t.datetime :confirmed_at
+      # t.datetime :confirmation_sent_at
+      # t.string   :unconfirmed_email # Only if using reconfirmable
+
+      ## Lockable
+      # t.integer  :failed_attempts, :default => 0 # Only if lock strategy is :failed_attempts
+      # t.string   :unlock_token # Only if unlock strategy is :email or :both
+      # t.datetime :locked_at
+
+      # Token authenticatable
+      # t.string :authentication_token
+
+      ## Invitable
+      # t.string :invitation_token
 
       t.timestamps
     end

db/migrate/20120422201818_update_devise_to_version2.rb

@@ -0,0 +1,10 @@
+class UpdateDeviseToVersion2 < ActiveRecord::Migration
+  # Changes according to https://github.com/plataformatec/devise/wiki/How-To:-Upgrade-to-Devise-2.0
+  def change
+    add_column :users, :confirmation_token,     :string
+    add_column :users, :confirmed_at,           :datetime
+    add_column :users, :confirmation_sent_at,   :datetime
+    add_column :users, :unconfirmed_email,      :string
+    add_column :users, :reset_password_sent_at, :datetime
+  end
+end