Plugin refresh time


#1

Hi there,

I’m currently developing a plugin to do authentication and
authorisation. In the init.rb file of the plugin I have this code:-
$:.unshift File.expand_path(File.join(File.dirname(FILE), ‘lib’))
require ‘open_advantage/authorisation’
ActionController::Base.send :include, OpenAdvantage::Authorisation

and this is the skeleton of my plugin directory structure:-
vendor/plugins/open_advantage/init.rb
vendor/plugins/lib/open_advantage/authorisation.rb

the ‘vendor/plugins/lib/open_advantage/authorisation.rb’ file contains
module OpenAdvantage
module Authorisation
end
end
currently with only a few methods in the Authorisation module.
However, when I change one of the functions in this module the
function is not mirrored in the output of the web browser. For
example if I deliberately make a mistake in the code it carrys on as
before when it should presumably raise a ‘Come on, FFS this is
nonsensical rubbish’ error. It continues to do this until the web
server (either lighttpd or webrick, I’ve tried both) are restarted.

Is there someway I can make the changes I’ve made in my plugin
immediately available to the application? I’ve tried putting various
require and include statements into the app/controllers/
application.rb file, but to no avail. The only way I can find for it
to pick up the changes every time is to pop the classes in the app/
controllers/application.rb file, and I’d really rather not develop
like that.

Any help would be gratefully received.

Thanks,

Anthony


#2

Hello Anthony ~

For changes in a plugin to be picked up the app needs to be restarted.
Imagine if the app had to reload every plugin on every request in
development mode? It would be quite a long wait for apps with many
plugins…

Don’t know if you saw this, but Geoffrey Grosenbach just released this:

http://nubyonrails.com/articles/2006/05/04/the-complete-guide-to-rails-plugins-part-i

It might have some tips.

~ Ben

On 5/5/06, Anthony R. removed_email_address@domain.invalid wrote:

    vendor/plugins/lib/open_advantage/authorisation.rb

before when it should presumably raise a 'Come on, FFS this is

Any help would be gratefully received.

Thanks,

Anthony


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Ben R.
303-947-0446
http://www.benr75.com


#3

Hi again Anthony,

OOPS! I wasn’t very clear, I’ll give an example:

in app/controllers/application.rb

class ApplicationController < ActionController::Base
require_dependency ‘open_advantage/authorization’
include OpenAdvantage::Authorization
end

Oh, and by the way, the correct directory structure is:

vendor/plugins/open_advantage/init.rb
vendor/plugins/open_advantage/lib/open_advantage/authorization.rb

That way, you can get rid of the $:.unshift code.

Begin forwarded message:


#4

Hi Anthony,

while you are developing your plugin (and want reloading capability)
you could move the ‘require’ and ‘include’ lines from init.rb into
your ApplicationController (app/controllers/application.rb).
Assuming all other controllers inherit from this controller the
results ought to be the same.

You’ll need to change the ‘require’ to ‘require_dependency’ but apart
from that it should be fine.

Regards,
Trevor

Trevor S.
http://somethinglearned.com