Rails - Oct 2005 - Inherits_from Plugin

In the name of "release early, release often" here''s my first
stab at
solving the "inheritance" problem.

Assume:

class Foo < ActiveRecord::Base
end

class Bar < ActiveRecord::Base
   inherits_from :Foo
end

This gives all "bars" access to methods and attributes from the
"foos".

You can grab the code here: http://invisible.ch/projects/wiki

This code is just the result of some playing around and is not  
feature complete. Most notably "find(..., :conditions => ["x =
?",
value] ) will not work if "x" is in the superclass. I don''t
know if
this can be solved without some major reworking of the find method.  
(I have started to play with the find method as can be seen in the  
source code - so far it does nothing)

This will only work in edge rails, because it uses the new "vendors/ 
plugin" feature.

I''m sure, there are better ways to implement this, but for now it  
seems to do what it''s supposed to do. Feedback, criticism and patches  
gladly accepted.

Jens-Christian

--
InVisible GmbH, Langgrütstrasse 172, 8047 Zürich
Phone: +41 44 401 09 30
http://www.invisible.ch   http://not.invisible.ch

Yay! Congrats to Jens-Christian on creating the first (publicly  
announced) 3rd party Rails plugin that uses the vendor/plugin  
"architecture".

- Jamis

On Oct 17, 2005, at 4:14 PM, Jens-Christian Fischer wrote:
> In the name of "release early, release often" here''s my
first stab
> at solving the "inheritance" problem.
>
> Assume:
>
> class Foo < ActiveRecord::Base
> end
>
> class Bar < ActiveRecord::Base
>   inherits_from :Foo
> end
>
> This gives all "bars" access to methods and attributes from the  
> "foos".
>
> You can grab the code here: http://invisible.ch/projects/wiki
>
> This code is just the result of some playing around and is not  
> feature complete. Most notably "find(..., :conditions => ["x =
?",
> value] ) will not work if "x" is in the superclass. I
don''t know if
> this can be solved without some major reworking of the find method.  
> (I have started to play with the find method as can be seen in the  
> source code - so far it does nothing)
>
> This will only work in edge rails, because it uses the new "vendors/ 
> plugin" feature.
>
> I''m sure, there are better ways to implement this, but for now it
> seems to do what it''s supposed to do. Feedback, criticism and  
> patches gladly accepted.
>
> Jens-Christian
>
> --
> InVisible GmbH, Langgrütstrasse 172, 8047 Zürich
> Phone: +41 44 401 09 30
> http://www.invisible.ch   http://not.invisible.ch
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>