Facebooker talk - Jan 2009 - Dynamically setting api/secret keys: a quick howto

This started out as a request for help, but I figured it out so I figured
I''d share. I run several Facebook apps off a single Rails app and I
keep
track of them in the database, so I wanted to set the Facebooker config for
each request, without relying on hard-coded yml files. It''s actually
pretty
simple:

1) Delete your facebooker.yml file so Facebooker''s own initialization
doesn''t override your settings.
2) Run something like this <http://pastie.org/376285> as a
prepend_before_filter (might also work as a regular before_filter).

code copied here:
      # replacement for Facebooker.load_configuration - we need this to set
the app
      # dynamically rather than from facebooker.yml.
      def self.set_facebooker_config app = App.current
        puts "Seting Facebooker config for #{app.api_key}..."
        attributes = app.attributes
        ENV[''FACEBOOK_API_KEY''] =
attributes[''api_key'']
        ENV[''FACEBOOK_SECRET_KEY''] =
attributes[''secret_key'']
        ENV[''FACEBOOKER_RELATIVE_URL_ROOT''] =
attributes[''canvas_page_name'']
        ENV[''FACEBOOKER_API''] = "new"
        ActionController::Base.asset_host =
attributes[''callback_url'']
      end

Hope this saves someone some diving through the Facebooker source.
Robert
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Awesome!

Thanks for posting. The setup code is really messy so I''m sure that  
was a pain to figure out. That''s on my todolist for refactoring to  
simplify.

Mike

On Jan 31, 2009, at 6:50 PM, Robert Matei wrote:
> This started out as a request for help, but I figured it out so I  
> figured I''d share. I run several Facebook apps off a single Rails
> app and I keep track of them in the database, so I wanted to set the  
> Facebooker config for each request, without relying on hard-coded  
> yml files. It''s actually pretty simple:
>
> 1) Delete your facebooker.yml file so Facebooker''s own  
> initialization doesn''t override your settings.
> 2) Run something like this as a prepend_before_filter (might also  
> work as a regular before_filter).
>
> code copied here:
>       # replacement for Facebooker.load_configuration - we need this  
> to set the app
>       # dynamically rather than from facebooker.yml.
>       def self.set_facebooker_config app = App.current
>         puts "Seting Facebooker config for #{app.api_key}..."
>         attributes = app.attributes
>         ENV[''FACEBOOK_API_KEY''] =
attributes[''api_key'']
>         ENV[''FACEBOOK_SECRET_KEY''] =
attributes[''secret_key'']
>         ENV[''FACEBOOKER_RELATIVE_URL_ROOT''] =  
> attributes[''canvas_page_name'']
>         ENV[''FACEBOOKER_API''] = "new"
>         ActionController::Base.asset_host =
attributes[''callback_url'']
>       end
>
> Hope this saves someone some diving through the Facebooker source.
> Robert
> _______________________________________________
> Facebooker-talk mailing list
> Facebooker-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/facebooker-talk
--
Mike Mangino
http://www.elevatedrails.com