[ic] Re: trying to get a handle on this user tag thing

[interchange-users@icdevgroup.org (C.B. Currier)]

> C.B. Currier writes:
>
> >> It looks like your query is either returning undef or the empty string,
> >> which is why you can't dereference it as an array.
> >>
> >> Jon
> >>
> >> On Wed, 2002-10-02 at 10:28, racke@linuxia.de wrote:
> >> > C.B. Currier writes:
> >> >
> >> > > I am trying to get the syntax to get a db handle for querying
> >> the current
> >> > > db. Below is a sample of the code I have been using but have
> >> been getting
> >> > > the following error.  I have debugged the sql syntax and
> >> found it to work
> >> > > correctly, not returning a null or 0 record result set. But I
> >> believe that
> >> > > the result set returned is not compatable with my variable.
> >> Any guidance on
> >> > > this is much appreciated.
> >> > >
> >> > > C.B.
> >> > >
> >> > > Code:
> >> > >
> >> > > 	sub {
> >> > > 		my $itmcount = 0;
> >> > >
> >> > > 		my $tdb = $db{SKUShipZones};
> >> > >
> >> > > 		my $cart = $Carts->{main};
> >> > > 		$itmcount = @$cart;
> >> > > 		foreach (@$cart){
> >> > > 			my $sql = 'Select * from SKUShipZones where
> >> sku = \''.$_->{code}.'\';';
> >> > > 			my $qry = $Tag->query({sql => $sql,});
> >> > > 			foreach (@$qry){
> >> > > #				<<<DO BLA >>>
> >> > > 			}
> >> > > 		}
> >> > > 		return bla;
> >> > > 	}
> >> > > 	EOF
> >> > >
> >> > > Error:
> >> > >
> >> > > Runtime error: Can't use string ("") as an ARRAY ref while
> >> "strict refs" in
> >> > > use at (eval 185) line 11
> >> >
> >> > I suppose there is something wrong with your query. Check your
> >> > database logs.
> >> >
> >> > This is invalid too: return bla;
> >> >
> >> > Bye
> >> >     Racke
> >
> >
> > I ran a debug on the SQL and checked the mysql logs and found
> no problems
> > with the queries generated.
> > Even generated the sql and ran them myself and found the
> resultsets to be
> > fully populated.
> > Any other thoughts?
>
> Try to add arrayref => 'dummy' to the query parameters.
> I think it returns the arrayref. Otherwise use
> $Scratch->{dummy} as array reference like that:

I believe I really have stepped into it ... I got to the point mentioned
above & all is beginning to work finally. However the code:

> for (@{$Scratch->{dummy}}) {
>   ...
> }
suggested, I cannot fathom how to loop through the recordset array/hash to
get the data out.
I have tried doing such things as
	 for (@{$Scratch->{dummy}}) {
		$Zone = $_->{Zone};
	 }
where zone is the only field returned in the query. Hoever I get nothing.
Help please, this syntax I cannot discern, where shall I look?
I really appreciate any assistance - this project has be quite edifying.

C.B.