Forum: Rails Engines Conflict with Mail Queue and Engines?

I'm trying to use the Mail Queue plugin from:
ruby script/plugin install svn://rubyforge.org/var/svn/mail-queue

When I try to deliver an email I'm getting the following stack trace.
Looks like it's conflicting with engines, but I can't be sure. Anyone
else seen this or know what might be going on?

-----------------------------------


You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.empty?

/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:371:in
`new_constants_in'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:199:in
`load_file'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:95:in
`rails_pre_engines_require_or_load'
/Work/myapp/site/trunk/config/../vendor/plugins/engines/lib/engines/dependencies_extensions.rb:60:in
`rails_1_1_require_or_load'
/Work/myapp/site/trunk/config/../vendor/plugins/engines/lib/engines/dependencies_extensions.rb:14:in
`require_or_load'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:245:in
`load_missing_constant'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:446:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:458:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:257:in
`load_missing_constant'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:446:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:464:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/plugins/mail-queue/lib/mail_queue.rb:13:in
`deliver!'
/Work/myapp/site/trunk/config/../vendor/rails/actionmailer/lib/action_mailer/base.rb:325:in
`method_missing'
/Work/myapp/site/trunk/config/../app/controllers/estimates_controller.rb:153:in
`new'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:1068:in
`perform_action_without_filters'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:635:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:637:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:641:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:438:in
`call'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:640:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:622:in
`perform_action_without_benchmark'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in
`perform_action_without_rescue'
/usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in
`perform_action_without_rescue'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/rescue.rb:81:in
`perform_action'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:427:in
`process_without_filters'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:627:in
`process_without_session_management_support'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/session_management.rb:114:in
`process'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:330:in
`process'
/Work/myapp/site/trunk/config/../vendor/rails/railties/lib/dispatcher.rb:41:in
`dispatch'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84:in
`process'
/usr/local/lib/ruby/1.8/sync.rb:229:in `synchronize'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83:in
`process'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in
`process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in
`process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:267:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:127:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:211:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:231
/usr/local/bin/mongrel_rails:18

Not sure if anyone saw this as I got a rejected mail message from the
list server. Apologies if this is a duplicate...
---------------


I'm trying to use the Mail Queue plugin from:
ruby script/plugin install svn://rubyforge.org/var/svn/mail-queue

When I try to deliver an email I'm getting the following stack trace.
Looks like it's conflicting with engines, but I can't be sure. Anyone
else seen this or know what might be going on?

-----------------------------------


You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.empty?

/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:371:in
`new_constants_in'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:199:in
`load_file'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:95:in
`rails_pre_engines_require_or_load'
/Work/myapp/site/trunk/config/../vendor/plugins/engines/lib/engines/dependencies_extensions.rb:60:in
`rails_1_1_require_or_load'
/Work/myapp/site/trunk/config/../vendor/plugins/engines/lib/engines/dependencies_extensions.rb:14:in
`require_or_load'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:245:in
`load_missing_constant'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:446:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:458:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:257:in
`load_missing_constant'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:446:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:464:in
`const_missing'
/Work/myapp/site/trunk/config/../vendor/plugins/mail-queue/lib/mail_queue.rb:13:in
`deliver!'
/Work/myapp/site/trunk/config/../vendor/rails/actionmailer/lib/action_mailer/base.rb:325:in
`method_missing'
/Work/myapp/site/trunk/config/../app/controllers/estimates_controller.rb:153:in
`new'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:1068:in
`perform_action_without_filters'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:635:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:637:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:641:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:438:in
`call'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:640:in
`call_filter'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:622:in
`perform_action_without_benchmark'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in
`perform_action_without_rescue'
/usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in
`perform_action_without_rescue'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/rescue.rb:81:in
`perform_action'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:427:in
`process_without_filters'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/filters.rb:627:in
`process_without_session_management_support'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/session_management.rb:114:in
`process'
/Work/myapp/site/trunk/config/../vendor/rails/actionpack/lib/action_controller/base.rb:330:in
`process'
/Work/myapp/site/trunk/config/../vendor/rails/railties/lib/dispatcher.rb:41:in
`dispatch'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84:in
`process'
/usr/local/lib/ruby/1.8/sync.rb:229:in `synchronize'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83:in
`process'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in
`process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in
`process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:267:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:127:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:211:in
`run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:231
/usr/local/bin/mongrel_rails:18

We'd need to find out what constant Mail Queue is expecting in it's
deliver! method, and where engines/Rails is looking to load it from.
Turning on the engines logger should give some fairly detailed output
about Rails attempting to load classes.

I thought I would post my 'fix' incase anyone runs across this post with
the same problem.

I renamed the mail-queue folder in vendor/plugins to mail_queue

After the rename everything worked great.

Subimage Interactive wrote:
> I'm trying to use the Mail Queue plugin from:
> ruby script/plugin install svn://rubyforge.org/var/svn/mail-queue
> 
> When I try to deliver an email I'm getting the following stack trace.
> Looks like it's conflicting with engines, but I can't be sure. Anyone
> else seen this or know what might be going on?

James Smith wrote:
> I thought I would post my 'fix' incase anyone runs across this post with
> the same problem.
> 
> I renamed the mail-queue folder in vendor/plugins to mail_queue
worked for me, as well
rename selenium-plugin as selenium_plugin and voila.

James Smith wrote:
> I thought I would post my 'fix' incase anyone runs across this post with
> the same problem.
> 
> I renamed the mail-queue folder in vendor/plugins to mail_queue

worked for me, as well
rename selenium-plugin as selenium_plugin and voila.

Roger Pack wrote:
> James Smith wrote:
>> I thought I would post my 'fix' incase anyone runs across this post with
>> the same problem.
>> 
>> I renamed the mail-queue folder in vendor/plugins to mail_queue
> 
> worked for me, as well
> rename selenium-plugin as selenium_plugin and voila.