[Dbix-class] Question about dynamic class generation (DBIx::Class::Schema::Loader)

Matt S Trout dbix-class at trout.me.uk
Wed Feb 15 15:34:55 CET 2006


On Wed, Feb 15, 2006 at 11:02:55AM +0000, Dave Howorth wrote:
> castaway at desert-island.demon.co.uk wrote:
> >IMO (and I may be off base), it should be possible to use Loader, which 
> >will have a standard set of predictable results (which should be 
> >detailed in the docs), and then only write your own classes for the 
> >parts you need to change / expand. Some flag should possibly set whether 
> >the user-created classes replace or extend the Loader ones .. ?
> 
> FWIW, that's what I do in my home-grown CDBI/Maypole loader. It works 
> well for me. I haven't needed to replace any automatically-generated 
> classes; I just override individual methods. For example, I define an 
> alternate semantics for find_or_create in my base class and override the 
> method in those classes where it's appropriate (some classes have 
> special change-logging built in that alters how the find part of 
> find_or_create needs to work).
> 
> It would be nice when I get around to migrating to find that DBIC 
> already has the mechanism :)

left_base_classes and additional_base_classes should already do the trick
for this in all Loaders (including the CDBI one)

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