[Dbix-class] initialize()

[Matt S Trout]

On Fri, Nov 18, 2005 at 03:32:03PM -0500, Vsevolod (Simon) Ilyushchenko wrote:
> Hi,
> 
> I'd like to see an initialize() method that is always called from new(). 
> Obviously, it should be an empty method in the framework's classes, but 
> I'd like to be able to override this.
> 
> The reason is that sometimes I need to do additional processing during 
> class creation. If I'm creating a class directly, I can make sure it 
> happens, but if it's created from a relationship, I have no control over it.

Do you really mean class or object here?
 
> I can't simply override new(), because the DBIx classes put themselves 
> in the beginning of @ISA, and Class::Row->new() doesn't call NEXT, so my 
> new() never gets called.

Ok. Two solutions (just because I don't have an answer when you ask me on IRC
doesn't mean I don't think about it later). The quick and dirty -

__PACKAGE__->load_components(qw/.../);
unshift(@ISA, 'My::Base::Class');

The nice one would be to think about how we can make load_components smarter
in the C3 branch - abraxxa's patch (which needs a little tweaking to its
tests but is otherwise good) will let you do

MySchema->load_classes({ 'MyOthers' => [ qw/Foo Bar/ ] },
  qw/Baz Quux/);

to load MyOthers::Foo, MyOthers::Bar, MySchema::Baz and MySchema::Quux.

We could maybe adapt the concept, or perhaps I should just get on with
refactoring the core so (with a little help from C3) you don't need an ISA
list a mile long in the first place ...

-- 
     Matt S Trout       Specialists in Perl consulting, web development, and
  Technical Director    UNIX/Linux systems architecture and automation. Mail
Shadowcat Systems Ltd.  mst (at) shadowcatsystems.co.uk for more information

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