Rails - Jul 2012 - engines: accessing classes from the hosting-apps lib

I have an engine and can access model-classes of the hosting app without 
any troubles. 

But when I try to access classes that are defined in the lib-directory of 
the hosting app, they are not found and I get a 

uninitialized constant Redmine

where Redmine is a module defined in the lib-directory of the hosting app. 
The lib-directory has added this dir to the autoload_paths, but the engine 
does not see them. The documentation 
(http://api.rubyonrails.org/classes/Rails/Engine.html) here is a litte 
vague: 

The Application class adds a couple more paths to this set. And as in your 
Application, all folders under app are automatically added to the load 
path. If you have an app/observers folder for example, it will be added by 
default.

but the paths defined as autoload_paths are not added by default?! 

Is there a way I can get the engine to load the classes in the lib-dir of 
the hosting app?!

thx for any help, 
stefan 

-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/rubyonrails-talk/-/jMVWKss3Tt0J.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en-US.

ok, got this one: 

reason for the trouble was the load-sequence: I tried to include a module 
from the hosting app inside a class inside my plugin: this fails inside 
tests, as the plugin-classes are loaded before the rest of the app (or at 
least, that is my guess): I solved this by including the module only at 
runtime with a 

 
class MyPluginClass
      def initialize
        self.class.send :include, ::Redmine::I18n unless 
self.class.include? ::Redmine::I18n
      end
      ...
end

This gets rid of the direct include-dependency and postpones the include: 
When the class is loaded for the first time, the include is added - now all 
classes, even the ones from lib are available. 

 

Am Donnerstag, 12. Juli 2012 12:05:08 UTC+2 schrieb 
vierund...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org:
>
> I have an engine and can access model-classes of the hosting app without 
> any troubles. 
>
> But when I try to access classes that are defined in the lib-directory of 
> the hosting app, they are not found and I get a 
>
> uninitialized constant Redmine
>
> where Redmine is a module defined in the lib-directory of the hosting app. 
> The lib-directory has added this dir to the autoload_paths, but the engine 
> does not see them. The documentation (
> http://api.rubyonrails.org/classes/Rails/Engine.html) here is a litte 
> vague: 
>
> The Application class adds a couple more paths to this set. And as in 
> your Application, all folders under app are automatically added to the 
> load path. If you have an app/observers folder for example, it will be 
> added by default.
>
> but the paths defined as autoload_paths are not added by default?! 
>
> Is there a way I can get the engine to load the classes in the lib-dir of 
> the hosting app?!
>
> thx for any help, 
> stefan 
>
>
-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/rubyonrails-talk/-/6sAQjLWB1QcJ.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en-US.