[html-formfu] inheritance question

[Malcolm]

On Monday 23 February 2009, Carl Franks wrote:

> > Though it would probably help if I got my examples the correct way
> > around.
> >
> >        package MySite::Controller::Profile;
> >        use parent qw(Catalyst::Controller::HTML::FormFu
> > MySite::Controller::Base); works.
> >
> >        package MySite::Controller::Profile;
> >        use parent qw(MySite::Controller::Base
> > Catalyst::Controller::HTML::FormFu); does not.

> Without the code for MySite::Controller::Base, I can only guess that
> it's inheriting from Catalyst::Controller which has a create_action sub,
> meaning that C::C::HTML::FormFu's won't be called.

That is what was happening (though Base was inheriting from a third class, 
which is what was inheriting from Catalyst::Controller, same end result 
though). As the other class didn't use create_action, everything worked with 
things ordered so FormFu gets the call.


On Monday 23 February 2009, Byron Young wrote:

> I put this bit of code in my multiply-inherited controllers to make sure
> everybody's create_action sub is called:
>
> use Class::C3;
> sub create_action {
>     my $self = shift;
>
>     return $self->maybe::next::method(@_);
> }
>
> It works for me.  If somebody has a better way to get around the problem,
> I'd love to hear it.

Thanks.

It does seem somewhat awkward, as you'd have to do the same thing for every 
function. (Though it's much cleaner than the equivalent in C++, which is the 
other language I have to use regularly).

Maybe there's something in Moose that would do it, but I haven't finished 
wrapping my head around Moose yet.