[Openinteract-help] Re: Callbacks on links_to?

[Vsevolod (S. I. <si...@cs...>]

Chris,

> Coincidentally, I made a change in 0.80 that allows you to do:
> 
> SPOPS class: SPOPS_Books
> Your class: MyBooks isa SPOPS_Books
> SPOPS class: SPOPS_Publisher
> Your class: MyPublisher isa SPOPS_Publisher

Thanks! This almost works out for me. But here is the problem: my 
classes have a superclass. Let's call it MyObject. So I inherit MyBooks 
from SPOPS_Books and MyObject. I have to double-dispatch the new() 
method, but I can live with it.

However, I use strict field checking and field autodiscovery. When I 
begin to store attributes in MyObject via the regular Perl getter/setter 
methods which use $self as a hashref, I start to get SPOPS errors about 
accessing fields that are not present.

Obviously, I can turn strict fields off, but I'd like to retain that. 
The alternative is to somehow keep autodiscovery, but add in the config 
hash of SPOPS_Books additional fields which correspond to "instance 
variables" of MyObject. I am not sure how to do it, but even if I could, 
it's messy because I'll have to repeat it in every SPOPS_* class. This 
can be made a little less messy if I do not inherit from MyObject, but 
store a reference to it, but this one reference still has to be 
mentioned in SPOPS config.

Simon
-- 

Simon (Vsevolod ILyushchenko)   si...@cs...
				http://www.simonf.com

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