# Engines **URL:** https://www.ruby-forum.com/c/ruby-on-rails/rails-engines/9.md?page=1 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 2 --- ## [Migrations concensus?](https://www.ruby-forum.com/t/migrations-concensus/176995)
**Author:** [@rogerdpack](https://www.ruby-forum.com/u/rogerdpack)\ **Replies:** 4\ **Last updated:** [October 12, 2009, 3:04pm UTC](https://www.ruby-forum.com/t/migrations-concensus/176995 "2009-10-12T15:04:39Z")
It appears from http://rails-engines.org/news/2009/02/02/engines-in-rails-2-3/ that migrations and copying public assets are no longer supported. However, from it appears that migrations are still supported via a r… --- ## [Migrations possible?](https://www.ruby-forum.com/t/migrations-possible/176992)
**Author:** [@rogerdpack](https://www.ruby-forum.com/u/rogerdpack)\ **Replies:** 1\ **Last updated:** [October 9, 2009, 2:31pm UTC](https://www.ruby-forum.com/t/migrations-possible/176992 "2009-10-09T14:31:57Z")
Was there ever any concensus on how to get migrations to run with the latest versions of engines? Do I need to write a plugin that will do it for me? Thanks! -r --- ## [Version of Engines that's compatible with rails 2.2.2?](https://www.ruby-forum.com/t/version-of-engines-thats-compatible-with-rails-2-2-2/176501)
**Author:** [@cmaxvv](https://www.ruby-forum.com/u/cmaxvv)\ **Replies:** 2\ **Last updated:** [October 2, 2009, 5:42pm UTC](https://www.ruby-forum.com/t/version-of-engines-thats-compatible-with-rails-2-2-2/176501 "2009-10-02T17:42:44Z")
Hi - sorry if this has been asked, i searched the archive for 2.2.2 but couldn’t see anything. Anyway - is there a version of Engines compatible with rails 2.2.2? The one i got off github requires 2.3.2 or later. I c… --- ## [Engines version for rails 2.2.2?](https://www.ruby-forum.com/t/engines-version-for-rails-2-2-2/176502)
**Author:** [@cmaxvv](https://www.ruby-forum.com/u/cmaxvv)\ **Replies:** 0\ **Last updated:** [October 1, 2009, 11:57am UTC](https://www.ruby-forum.com/t/engines-version-for-rails-2-2-2/176502 "2009-10-01T11:57:11Z")
Hi - sorry if this has been asked, i searched but couldn’t see anything. Anyway - is there a version of Engines compatible with rails 2.2.2? The one i got off github requires 2.3.2 or later. thanks max --- ## [Bad link?](https://www.ruby-forum.com/t/bad-link/174401)
**Author:** [@rogerdpack](https://www.ruby-forum.com/u/rogerdpack)\ **Replies:** 0\ **Last updated:** [August 26, 2009, 1:33pm UTC](https://www.ruby-forum.com/t/bad-link/174401 "2009-08-26T13:33:15Z")
sorry if this is the wrong place for this, but there appears to be a bad link: http://rails-engines.org/development the link to “README” Also any update on the “no migrations” aspect of EDGE? Thanks. -r --- ## [Login\_engine - rake migrate error, "ENGINE=InnoDB"](https://www.ruby-forum.com/t/login-engine-rake-migrate-error-engine-innodb/51953)
**Author:** [@brad](https://www.ruby-forum.com/u/brad)\ **Replies:** 7\ **Last updated:** [July 2, 2009, 9:16am UTC](https://www.ruby-forum.com/t/login-engine-rake-migrate-error-engine-innodb/51953 "2009-07-02T09:16:34Z")
Hi, I followed all the instructions at http://api.rails-engines.org/login\_engine/ and successfully installed and used the Login\_Engine with a local MySQL database instance. However, when I did exactly the same (sligh… --- ## [Engines 2.3 compatibility](https://www.ruby-forum.com/t/engines-2-3-compatibility/165964)
**Author:** [@nitr0z](https://www.ruby-forum.com/u/nitr0z)\ **Replies:** 1\ **Last updated:** [May 15, 2009, 8:19pm UTC](https://www.ruby-forum.com/t/engines-2-3-compatibility/165964 "2009-05-15T20:19:16Z")
Hi all, I’ve just made the appropriate changes to bring the engines plugin into compatibility with Rails 2.3, and the engine features it implements. You can find these changes in the ‘edge’ branch of the git reposito… --- ## [Specifying Order for Application & Plugin Routes](https://www.ruby-forum.com/t/specifying-order-for-application-plugin-routes/167342)
**Author:** [@willclarkdesigns](https://www.ruby-forum.com/u/willclarkdesigns)\ **Replies:** 1\ **Last updated:** [May 6, 2009, 9:58pm UTC](https://www.ruby-forum.com/t/specifying-order-for-application-plugin-routes/167342 "2009-05-06T21:58:50Z")
I see that with the latest version of Rails & Engines (http://www.rails-engines.org/news/2009/04/20/edge-engines-now-compatible-with-rails-2-3/) the plugin routes are to be moved to plugin\_root/config/routes.rb and Ra… --- ## [Introduction](https://www.ruby-forum.com/t/introduction/167111)
**Author:** [@add](https://www.ruby-forum.com/u/add)\ **Replies:** 0\ **Last updated:** [May 4, 2009, 5:43am UTC](https://www.ruby-forum.com/t/introduction/167111 "2009-05-04T05:43:52Z")
Zhengzhou Vipeak Heavy Industry Machinery Co., Ltd has long been one of the best powder processing machinery companies in China, Welcome all the customers from worldwide to browse our website and choose our machinery. … --- ## [Re: Engines 2.3 compatibility](https://www.ruby-forum.com/t/re-engines-2-3-compatibility/166072)
**Author:** [@Michael\_Klett](https://www.ruby-forum.com/u/Michael_Klett)\ **Replies:** 3\ **Last updated:** [May 1, 2009, 8:01pm UTC](https://www.ruby-forum.com/t/re-engines-2-3-compatibility/166072 "2009-05-01T20:01:09Z")
If the community feels that controlling the positioning of the routes is necessary, we should be pursuing this as part of the Rails core implementation, i.e. with tickets and patches and +1s. I have a use-case for n… --- ## [NoMethodError In Production Mode](https://www.ruby-forum.com/t/nomethoderror-in-production-mode/166625)
**Author:** [@willclarkdesigns](https://www.ruby-forum.com/u/willclarkdesigns)\ **Replies:** 0\ **Last updated:** [April 28, 2009, 12:02am UTC](https://www.ruby-forum.com/t/nomethoderror-in-production-mode/166625 "2009-04-28T00:02:57Z")
I am working on an app using the Rails Engine plugin. In development mode, everything works fine. However, when I switch to production mode I get a NoMethodError for any of my methods in any of my models. I know there… --- ## [Rails.plugins](https://www.ruby-forum.com/t/rails-plugins/165966)
**Author:** [@nitr0z](https://www.ruby-forum.com/u/nitr0z)\ **Replies:** 2\ **Last updated:** [April 21, 2009, 12:01pm UTC](https://www.ruby-forum.com/t/rails-plugins/165966 "2009-04-21T12:01:44Z")
One of the handy things missing from Rails, that the engines plugin tries to provide but which isn’t really core to its functionality, is a way of inspecting the set of loaded plugins while the application is running. … --- ## [Stack level too deep (SystemStackError)](https://www.ruby-forum.com/t/stack-level-too-deep-systemstackerror/59216)
**Author:** [@cwd](https://www.ruby-forum.com/u/cwd)\ **Replies:** 9\ **Last updated:** [April 15, 2009, 8:46pm UTC](https://www.ruby-forum.com/t/stack-level-too-deep-systemstackerror/59216 "2009-04-15T20:46:18Z")
I have the following installed: Engines version 1.1.1 login\_engine 1.0.1 user\_engine (no version noted, cuz no CHANGELOG provided, but just upgraded) Runs great on my dev machine (don’t they always?) using Ruby 1.8.… --- ## [Alternatives to mixins](https://www.ruby-forum.com/t/alternatives-to-mixins/161945)
**Author:** [@arjackson](https://www.ruby-forum.com/u/arjackson)\ **Replies:** 8\ **Last updated:** [March 16, 2009, 6:07pm UTC](https://www.ruby-forum.com/t/alternatives-to-mixins/161945 "2009-03-16T18:07:26Z")
Hi all, I was reading James’ summary of engines in rails 2.3 ( http://rails-engines.org/news/2009/02/02/engines-in-rails-2-3/) and at the bottom there is “While the code mixing mechanism is quite neat, there are oth… --- ## [Subfolders in models](https://www.ruby-forum.com/t/subfolders-in-models/162951)
**Author:** [@arjackson](https://www.ruby-forum.com/u/arjackson)\ **Replies:** 0\ **Last updated:** [March 16, 2009, 4:25am UTC](https://www.ruby-forum.com/t/subfolders-in-models/162951 "2009-03-16T04:25:03Z")
Hi all, Not sure if I should ask here or the rails mailing list. Now that we can have app/models work automatically, shouldn’t there be a way to add load\_paths within a plugin’s init.rb, so that I don’t have to use … --- ## [Failing to gem update](https://www.ruby-forum.com/t/failing-to-gem-update/162082)
**Author:** [@pesho318i](https://www.ruby-forum.com/u/pesho318i)\ **Replies:** 0\ **Last updated:** [March 5, 2009, 3:45pm UTC](https://www.ruby-forum.com/t/failing-to-gem-update/162082 "2009-03-05T15:45:17Z")
Hi, I keep on receiving the following error when I try to gem update: Updating installed gems Updating facebooker Building native extensions. This could take a while… ERROR: While executing gem … (Gem::Installer::E… --- ## [Re: Will engines be around in Rails 2.3?](https://www.ruby-forum.com/t/re-will-engines-be-around-in-rails-2-3/160874)
**Author:** [@Michael\_Klett](https://www.ruby-forum.com/u/Michael_Klett)\ **Replies:** 1\ **Last updated:** [February 21, 2009, 11:13am UTC](https://www.ruby-forum.com/t/re-will-engines-be-around-in-rails-2-3/160874 "2009-02-21T11:13:32Z")
I didn’t notice a mention of engine routes and how they are currently different in Rails 2.3.0. As far as I can tell, there is no control over ordering. All of the plugin/engine routes load, and then the main app r… --- ## [Will engines be around in Rails 2.3?](https://www.ruby-forum.com/t/will-engines-be-around-in-rails-2-3/160798)
**Author:** [@Trevor\_Rowe](https://www.ruby-forum.com/u/Trevor_Rowe)\ **Replies:** 10\ **Last updated:** [February 21, 2009, 11:12am UTC](https://www.ruby-forum.com/t/will-engines-be-around-in-rails-2-3/160798 "2009-02-21T11:12:21Z")
I know they are adding a lot to the core of rails, but what about the rest? Will the Engines plugin live on to provide the missing pieces? --- ## [MissingSourceFile: no such file to load -- login\_engine](https://www.ruby-forum.com/t/missingsourcefile-no-such-file-to-load-login-engine/64046)
**Author:** [@jqr](https://www.ruby-forum.com/u/jqr)\ **Replies:** 3\ **Last updated:** [February 18, 2009, 12:42am UTC](https://www.ruby-forum.com/t/missingsourcefile-no-such-file-to-load-login-engine/64046 "2009-02-18T00:42:46Z")
This error seems to stem from the require line in application.rb. I’m new to Rails, but I’m assuming that this should load the lib/login\_engine.rb from within the vendor/plugins/login\_engine directory. I’ve been over… --- ## [Rails 2.3 (minus) engines = headaches](https://www.ruby-forum.com/t/rails-2-3-minus-engines-headaches/159917)
**Author:** [@davidjrice](https://www.ruby-forum.com/u/davidjrice)\ **Replies:** 0\ **Last updated:** [February 10, 2009, 1:04am UTC](https://www.ruby-forum.com/t/rails-2-3-minus-engines-headaches/159917 "2009-02-10T01:04:16Z")
Engine-Users mailing list removed\_email\_address@domain.invalid http://lists.rails-engines.org/listinfo.cgi/engine-users-rails-engines.org --- ## [Ignore / setup loaded plugins](https://www.ruby-forum.com/t/ignore-setup-loaded-plugins/157904)
**Author:** [@fero](https://www.ruby-forum.com/u/fero)\ **Replies:** 2\ **Last updated:** [January 16, 2009, 4:46pm UTC](https://www.ruby-forum.com/t/ignore-setup-loaded-plugins/157904 "2009-01-16T16:46:58Z")
Hello Is there way to ignore loading plugin without removing it from plugins directory? Or select plugins i wish to use manually? Thank you for replying. Fero --- ## [Parent controller is removed from the module tree](https://www.ruby-forum.com/t/parent-controller-is-removed-from-the-module-tree/157716)
**Author:** [@Andy\_Matsubara](https://www.ruby-forum.com/u/Andy_Matsubara)\ **Replies:** 0\ **Last updated:** [January 14, 2009, 6:44pm UTC](https://www.ruby-forum.com/t/parent-controller-is-removed-from-the-module-tree/157716 "2009-01-14T18:44:47Z")
Hello, I’m a newbie in this list. And Ive just begun using the Rails Engin plugin. I’m using a plugin’s controller, which is a child class of “Admin::AdminController”. When I reload the page. Rails causes a error wh… --- ## [ActionMailer failing test](https://www.ruby-forum.com/t/actionmailer-failing-test/156558)
**Author:** [@Diego\_Algorta](https://www.ruby-forum.com/u/Diego_Algorta)\ **Replies:** 3\ **Last updated:** [January 6, 2009, 5:16pm UTC](https://www.ruby-forum.com/t/actionmailer-failing-test/156558 "2009-01-06T17:16:43Z")
Hi all, I have an app using rails 2.2.2 and engines from master branch commit 5a2fb6db. I have an Emailer \< ActionMailer::Base but I need to have some of the templates in the app and some others in an engines plugin.… --- ## [Mongrel not connecting](https://www.ruby-forum.com/t/mongrel-not-connecting/144918)
**Author:** [@hema\_mca](https://www.ruby-forum.com/u/hema_mca)\ **Replies:** 2\ **Last updated:** [December 31, 2008, 3:35pm UTC](https://www.ruby-forum.com/t/mongrel-not-connecting/144918 "2008-12-31T15:35:35Z")
I upgraded my system to new version… now if i run the mongrel it is saying Starting Rails with development environment… \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* \* config.breakpoint\_serve… --- ## [Rails 2.0.2 upgrade difficulties](https://www.ruby-forum.com/t/rails-2-0-2-upgrade-difficulties/124847)
**Author:** [@Sean\_Schofield](https://www.ruby-forum.com/u/Sean_Schofield)\ **Replies:** 11\ **Last updated:** [December 27, 2008, 6:11pm UTC](https://www.ruby-forum.com/t/rails-2-0-2-upgrade-difficulties/124847 "2008-12-27T18:11:38Z")
Getting a routing error when I tried upgrading to Rails 2.0.2. … vendor/plugins/engines/lib/engines/rails\_extensions/routing.rb:69:in \`from\_plugin’: You have a nil object when you didn’t expect it! (NoMethodError) Th… --- ## [I'm interested in writing test for the windows copy of assets bug](https://www.ruby-forum.com/t/im-interested-in-writing-test-for-the-windows-copy-of-assets-bug/143528)
**Author:** [@Miles\_G](https://www.ruby-forum.com/u/Miles_G)\ **Replies:** 3\ **Last updated:** [December 25, 2008, 8:54pm UTC](https://www.ruby-forum.com/t/im-interested-in-writing-test-for-the-windows-copy-of-assets-bug/143528 "2008-12-25T20:54:31Z")
Hi, I was interested in writing a test for this bug (the fix is trivial) but didn’t want to bother if it’s already been done by somebody or if somebody is in the middle of doing it. --- ## [Testing Engines with Spec](https://www.ruby-forum.com/t/testing-engines-with-spec/155850)
**Author:** [@Antonio\_Tapiador\_de](https://www.ruby-forum.com/u/Antonio_Tapiador_de)\ **Replies:** 0\ **Last updated:** [December 17, 2008, 3:29pm UTC](https://www.ruby-forum.com/t/testing-engines-with-spec/155850 "2008-12-17T15:29:05Z")
Hi, I’d like to write Spec tests of my Engine. However, I don’t know how to setup the database, environment, boot and any other things present in an ordinary Rails app. Anyone have pointers to examples, tips? Than… --- ## [Solved: plugin models unloading after first request](https://www.ruby-forum.com/t/solved-plugin-models-unloading-after-first-request/149383)
**Author:** [@elijah](https://www.ruby-forum.com/u/elijah)\ **Replies:** 1\ **Last updated:** [November 17, 2008, 9:22am UTC](https://www.ruby-forum.com/t/solved-plugin-models-unloading-after-first-request/149383 "2008-11-17T09:22:39Z")
I haven’t been able to find this advice anywhere else, so I am posting here so that it may help another lost soul. Some plugins have a problem: if a plugin applies a mixin directly to a model in app/models, this mixin… --- ## [Unclear how to create new timestamped plugin migrations](https://www.ruby-forum.com/t/unclear-how-to-create-new-timestamped-plugin-migrations/152916)
**Author:** [@davidjrice](https://www.ruby-forum.com/u/davidjrice)\ **Replies:** 0\ **Last updated:** [November 9, 2008, 6:45pm UTC](https://www.ruby-forum.com/t/unclear-how-to-create-new-timestamped-plugin-migrations/152916 "2008-11-09T18:45:06Z")
So excited the migrations issue has been resolved. My issue is, I’m working on a plugin, and I want to add a new migration in the plugin directory. Per the new migrations.rb docs (see snippet at end), my migrations sh… --- ## [Undefined method \`start\_all' for Engines:Module](https://www.ruby-forum.com/t/undefined-method-start-all-for-engines-module/152535)
**Author:** [@mwalsh](https://www.ruby-forum.com/u/mwalsh)\ **Replies:** 0\ **Last updated:** [November 4, 2008, 11:16pm UTC](https://www.ruby-forum.com/t/undefined-method-start-all-for-engines-module/152535 "2008-11-04T23:16:48Z")
I am trying to upgrade Rails on an application we have from 1.1.6 to 2.1.2. I unfroze Rails and refroze at 2.1.2. I then removed the engines plugin and install the latest from git. However, I now get this error when I… [Previous page](https://www.ruby-forum.com/c/ruby-on-rails/rails-engines/9.md) [Next page](https://www.ruby-forum.com/c/ruby-on-rails/rails-engines/9.md?page=2)