2006/4/25, John Siracusa <[EMAIL PROTECTED]>:
[...]
> http://search.cpan.org/dist/Rose-DB-Object/lib/Rose/DB/Object/ConventionMana
> ger.pm#SUMMARY_OF_DEFAULT_CONVENTIONS
>
> You've also discovered that the default CM is not too smart about converting
> (what it thinks are) plural words to singular.
>
> The solution is to create your own convention manager subclass. In your CM
> subclass, override the table_to_class() method (or just override the
> plural_to_singular() method) to do the right thing when the word "address"
> is passed. Then tell your common RDBO base class to use your custom
> convention manager subclass (or specify it as a parameter to the Loader, if
> you're using it).
>
> (In fact, you don't have to make a subclass at all if you simply specify a
> custom plural_to_singular_function() for the default convention manager.
> But the subclass solution is more flexible in the long-run.)
>
> Here's a (very primitive) example:
>
> package My::ConventionManager;
> use base 'Rose::DB::Object::ConventionManager';
>
> sub plural_to_singular
> {
> my($self, $word) = @_;
> return 'address' if($word eq 'address'); # already singular!
> return $self->SUPER::plural_to_singular($word);
> }
>
> ...
>
> package My::Base;
> use base 'Rose::DB::Object';
> use My::ConventionManager;
> __PACKAGE__->meta->convention_manager('My::ConventionManager');
>
> (That's off the top of my head, so please forgive any errors/typos.)
I just encontered the same problem ("categories" vs. "category"). I
used Lingua::EN::Inflect::Number to reasolve it elegantly. Based on
this tip [1] i built my own Metadata class:
package My::DB::Metadata;
use strict;
use warnings;
use base 'Rose::DB::Object::Metadata';
use Lingua::EN::Inflect::Number;
sub init_convention_manager {
my $this = shift;
# Let the base class make ths convention manager object
my $cm = $this->SUPER::init_convention_manager(@_);
# Set the new singular-to-plural function
$cm->singular_to_plural_function(\&Lingua::EN::Inflect::Number::to_PL);
$cm->plural_to_singular_function(\&Lingua::EN::Inflect::Number::to_S);
# Return the modified convention manager
return $cm;
}
It works just fine.
[1]
http://search.cpan.org/dist/Rose-DB-Object/lib/Rose/DB/Object/ConventionManager.pm#TIPS_AND_TRICKS
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