[Catalyst] Some guidance needed please

Matt S Trout dbix-class at trout.me.uk
Thu Sep 13 19:11:49 GMT 2007

On Thu, Sep 13, 2007 at 05:50:21PM +0100, Simon Wilcox wrote:
> Matt S Trout wrote:
> >On Thu, Sep 13, 2007 at 03:14:58PM +0100, Ian Docherty wrote:
> >>Almost, if I do my $used_password = 
> >>$c->model('DBIC::UsedPassword')->result_class->create_limited();
> >>
> >>it works. So that should do for now, thanks Simon and Will for your help 
> >>;)
> >
> >No. Don't do that.
> >
> >Really don't.
> >
> >It's utterly broken.
> Thanks. I'm not as familiar with the interaction of DBIx::Class and 
> Catalyst::Model::* as you are (obviously, I didn't write 'em :) but from 
> here:
> http://search.cpan.org/~ash/DBIx-Class-0.08007/lib/DBIx/Class/ResultSet.pm#result_class
> I find:
> result_class
>     Arguments: $result_class?
>     Return Value: $result_class
>     An accessor for the class to use when creating row objects. 
> Defaults
>     to result_source->result_class - which in most cases is the name of
>     the "table" class.
> This seems to be the right behaviour to me. Can you summarise why it is 
> not ?

No, result_class behaves perfectly.

Trying to create a record via a class method is WRONG. This is not Class::DBI.
Don't do it.

Collection methods should go on resultset objects. Always.

Class method stuff will easily break in all sorts of fun ways because DBIC
isn't designed to work like that.
> So would the original be better written as:
> $c->model('DBIC::UsedPassword')->class->create_limited(); # ?
> If it's not this then the docs are really confusing and I'd really 
> appreciate it if you could provide the correct usage or approach for 
> this situation.

The docs are correct.

That's just completely the wrong place for the create_limited method.

      Matt S Trout       Need help with your Catalyst or DBIx::Class project?
   Technical Director    Want a managed development or deployment platform?
 Shadowcat Systems Ltd.  Contact mst (at) shadowcatsystems.co.uk for a quote
http://chainsawblues.vox.com/                    http://www.shadowcat.co.uk/ 

More information about the Catalyst mailing list