[ic] Perl Cart Maniuplation

[Mike Heins]

Quoting Erik Fantasia (epfantasia@hotmail.com):
> I'm at the moment doing various things on the basket page with some perl, 
> such as:
> 
> my $cart = $Carts->{main};
> my $count = 0;
> 
> foreach $item (@cart) {
> 
> ...
> 
> }
> 
> Now one of the things I would like to do is allow customers to forward order 
> items not currently in stock by including a separate line in the basket with 
> the quantity to be ordered.  I've worked out that an identical line can be 
> added in the loop with:
> 
> splice (@{$Carts->{main}},$count,1,$item); # NB: $count++ precedes
> 
> However, then when i try to adjust any of the properties of this new nested 
> hash, ie:
> 
> $Carts->{main}[$count]{mv_ip} = $count;
> 
> The new hash remains unchanged from the original $items hashref!
> 
> Any clues?
> 

This is just perl. You have copied the reference -- the data hasn't
changed. 

You would have to do something like:

	my $cart = $Carts->{main};

	my @clone;

	foreach my $item (@$carts) {
	    my $onhand = $Tag->data('inventory', 'quantity', $item->{code});
	    push @clone, { %$item }
			if $onhand - $item->{quantity} < 1;
	}

	foreach my $new (@clone) {
	    push @$cart, $new;
	    $new->{mv_ip} = $#$carts;
	}


-- 
Mike Heins
Perusion -- Expert Interchange Consulting    http://www.perusion.com/
phone +1.513.523.7621      <mike@perusion.com>

For a successful technology, reality must take precedence over public
relations, for Nature cannot be fooled. -- Dick Feynman