My::Hash::* reimplementation for separate feature add-on packages (cleanup).

[MyWeb.git] / Hash / Push.pm

diff --git a/Hash/Push.pm b/Hash/Push.pm
new file mode 100644 (file)
index 0000000..4e01cba
--- /dev/null
+++ b/Hash/Push.pm
@@ -0,0 +1,41 @@
+# $Id$
+# Hash tied to optionally dynamically generate its values
+# Copyright (C) 2005 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; exactly version 2 of June 1991 is required
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+package My::Hash::Push;
+our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
+our $CVS_ID=q$Id$;
+use strict;
+use warnings;
+use My::Web;   # for &Wrequire
+Wrequire 'My::Hash';
+our @ISA=qw(My::Hash);
+use Carp qw(cluck confess);
+
+
+sub STORE
+{
+my($this,$key,$value)=@_;
+
+       return $this->pass("STORE",$key,$value) if $key!~/_push$/;
+       my $val_orig=$this->pass("FETCH",$key);
+       $val_orig=[] if !defined $val_orig;
+       $val_orig=[$val_orig] if "ARRAY" ne ref $val_orig;
+       return $this->pass("STORE",$key,[@$val_orig,$value]);
+}
+
+1;