# Migrating from login\_engine to AAA **URL:** \ **Category:** Rails\ **Created:** [May 7, 2007, 4:55pm UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534 "2007-05-07T16:55:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![bartz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ab097/32.png) [@bartz](https://www.ruby-forum.com/u/bartz)\ **Post date:** [May 7, 2007, 4:55pm UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534/1 "2007-05-07T16:55:30Z")
Hello all, I’m currently upgrading my app to Rails 1.2, and the login\_engine has been deprecated for that version. Is there an easy way to upgrade my existing user table (especially passwords) for use with acts\_as\_authenticated? thanks in advance. ---
**Author:** ![bartz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ab097/32.png) [@bartz](https://www.ruby-forum.com/u/bartz)\ **Post date:** [May 14, 2007, 11:56am UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534/2 "2007-05-14T11:56:28Z")
Bart Z. wrote: > Hello all, > > I’m currently upgrading my app to Rails 1.2, and the login\_engine has > been deprecated for that version. > Is there an easy way to upgrade my existing user table (especially > passwords) for use with acts\_as\_authenticated? > > thanks in advance. Nobody?.. ---
**Author:** ![bartz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ab097/32.png) [@bartz](https://www.ruby-forum.com/u/bartz)\ **Post date:** [May 30, 2007, 11:44pm UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534/3 "2007-05-30T23:44:41Z")
I’m in the process of upgrading a rails app from login\_engine to acts as authenticated. I believe that the user table from login\_engine is compatible with AAA. I am having one problem though. When I go to run the AAA generator I get the following error: bash-# script/generate authenticated --svn user account ./script/…/config/…/vendor/plugins/engines/lib/engines.rb:355:in `initialize': Cannot find the engine 'login' in either /vendor/plugins/ login, /vendor/plugins/login_engine or /vendor/plugins/login_bundle. (RuntimeError) from ./script/../config/../vendor/plugins/engines/lib/ engines.rb:172:in `new’ from ./script/…/config/…/vendor/plugins/engines/lib/ engines.rb:172:in `start_engine' from ./script/../config/../vendor/plugins/engines/lib/ engines.rb:141:in `start’ from ./script/…/config/…/vendor/plugins/engines/lib/ engines.rb:140:in `each' from ./script/../config/../vendor/plugins/engines/lib/ engines.rb:140:in `start’ from ./script/…/config/…/config/environment.rb:56 from /usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `gem_original_require' from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:in `require’ from /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/ generate.rb:1 from /usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `gem_original_require' from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:in `require’ from script/generate:3 I have already un-installed the login engine with the following command: bash-# script/plugin remove login\_engine However, it looks like the generator authenticated is still confused. I’m looking for a solution to this problem but haven’t found one yet. On 14 May, 02:56, Bart Z. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![bartz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ab097/32.png) [@bartz](https://www.ruby-forum.com/u/bartz)\ **Post date:** [May 31, 2007, 1:45am UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534/4 "2007-05-31T01:45:50Z")
Ok so what you have to to is add a column to your existing users table called crypted\_password. Also the problems I was having steamed from lines in config/environment specific to login\_engin. I commented those lines out and things started working. On May 14, 2:56 am, Bart Z. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![bartz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ab097/32.png) [@bartz](https://www.ruby-forum.com/u/bartz)\ **Post date:** [May 31, 2007, 12:15am UTC](https://www.ruby-forum.com/t/migrating-from-login-engine-to-aaa/103534/5 "2007-05-31T00:15:45Z")
I completely removed and re-installed acts as authenticated and now I’m getting the following error: bash-# script/generate authenticated --svn user account /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active\_support/ dependencies.rb:123:in `const_missing': uninitialized constant LoginEngine (NameError) from ./script/../config/../vendor/plugins/user_engine/lib/ user_engine.rb:46 from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require' from /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/ active_support/dependencies.rb:147:in`require’ from script/…/config/…/vendor/plugins/user\_engine/ init\_engine.rb:27:in `start_engine' from ./script/../config/../vendor/plugins/engines/lib/ engines.rb:201:in`start\_engine’ from ./script/…/config/…/vendor/plugins/engines/lib/ engines.rb:141:in `start' from ./script/../config/../vendor/plugins/engines/lib/ engines.rb:140:in`each’ from ./script/…/config/…/vendor/plugins/engines/lib/ engines.rb:140:in `start' from ./script/../config/../config/environment.rb:56 from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require' from /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/ generate.rb:1 from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require’ from script/generate:3