Rails - Apr 2007 - Help with "A copy of ApplicationController has been removed from the module tree but is still active!"

Hi,

I am on Edge Rails, hence with the new dependencies mechanism.

I am trying to get the plugin "acts_as_wizard"  (to work.

I have refactored it to use the new plugin loading system, as best I  
know how:

Key part:

module ActsAsWizard
	module ActionControllerExtensions

	  def self.append_features(base)
	    super
			base.class_eval do
				cattr_accessor :wizards # Hash, contains all the wizards this  
controller participates in
	  			alias_method :original_url_for, :url_for
	  			alias_method :original_render, :render
	  			prepend_before_filter WizardSetupFilter
			end
	  end

....etc.....

Note I changed the filter to prepend.

THis may be related to the problem I have, which is that when I am in  
a wizard, in one of my before_filters defined in my  
ApplicationController, I get a "A copy of ApplicationController has  
been removed from the module tree but is still active!" error halfway  
through the filter.

Does anyone have any idea what sort of thing causes such an error? or  
just any tips for debugging problems with the edge rails dependencies  
mechanism. It''s really opaque to me at this point.

Michael Johnston

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If I do this: 	config.load_once_paths += %W{ #{RAILS_ROOT}/app/ 
controllers }

things work. But I really hope there is another solution and I am not  
doomed to have to restart the development server for every controller  
change for the rest of the life of the project.

Michael

On 30-Apr-07, at 2:15 AM, Michael Johnston wrote:
>
> Hi,
>
> I am on Edge Rails, hence with the new dependencies mechanism.
>
> I am trying to get the plugin "acts_as_wizard"  (to work.
>
> I have refactored it to use the new plugin loading system, as best I
> know how:
>
> Key part:
>
> module ActsAsWizard
> 	module ActionControllerExtensions
>
> 	  def self.append_features(base)
> 	    super
> 			base.class_eval do
> 				cattr_accessor :wizards # Hash, contains all the wizards this
> controller participates in
> 	  			alias_method :original_url_for, :url_for
> 	  			alias_method :original_render, :render
> 	  			prepend_before_filter WizardSetupFilter
> 			end
> 	  end
>
> ....etc.....
>
> Note I changed the filter to prepend.
>
> THis may be related to the problem I have, which is that when I am in
> a wizard, in one of my before_filters defined in my
> ApplicationController, I get a "A copy of ApplicationController has
> been removed from the module tree but is still active!" error halfway
> through the filter.
>
> Does anyone have any idea what sort of thing causes such an error? or
> just any tips for debugging problems with the edge rails dependencies
> mechanism. It''s really opaque to me at this point.
>
> Michael Johnston
>
> >

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