Let me see if I got this straight...

Suppose I have an online store where I sell goods to several different countries each using its own currency. I could say (for Brazil's case):

my $real = new Currency;
$real->name('Real');
$real->country('BR');
$real->dolarValue(1.81);
[download]

And repeat this as many times necessary for each country. Then use set everything up, and use DBI to get the items from a shopping cart as usual (name, price, other attributes). Then my app would work as if my currency variables had been declared at startup, so I wouldn't have to do a 'select' myself to find out what the price of an item was in Reals?

That's a bit confusing... Let me try this instead.
Instead of doing two selects (one for the product, and one for the currency), I could have the currency loaded as an object and do my select on the product as if the currency information had always been there?

#!/home/bbq/bin/perl
# Trust no1!