lib/Redis/Hash.pm

package Redis::Hash;

use strict;
use warnings;

use Tie::Hash;
use base qw/Redis Tie::StdHash/;

use Data::Dump qw/dump/;

=head1 NAME

Redis::Hash - tie perl hashes into Redis

=head1 SYNOPSYS

  tie %name, 'Redis::Hash', 'prefix';

  my $o = tie %foobar, 'Redis::Hash', 'foobar';
  print $o->info->{used_memory}; # or any redis command

=cut

# mandatory methods
sub TIEHASH {
        my ($class,$name) = @_;
        my $self = Redis->new;
        $name .= ':' if $name;
        $self->{name} = $name || '';
        bless $self => $class;
}

sub STORE {
        my ($self,$key,$value) = @_;
        $self->set( $self->{name} . $key, $value );
}

sub FETCH {
        my ($self,$key) = @_;
        $self->get( $self->{name} . $key );
}

sub FIRSTKEY {
        my $self = shift;
        $self->{keys} = [ $self->keys( $self->{name} . '*' ) ];
        $self->NEXTKEY;
} 

sub NEXTKEY {
        my $self = shift;
        my $key = shift @{ $self->{keys} } || return;
        my $name = $self->{name};
        $key =~ s{^$name}{} || warn "can't strip $name from $key";
        return $key;
}

sub EXISTS {
        my ($self,$key) = @_;
        $self->exists( $self->{name} . $key );
}

sub DELETE {
        my ($self,$key) = @_;
        $self->del( $self->{name} . $key );
}

sub CLEAR {
        my ($self) = @_;
        $self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) );
        $self->{keys} = [];
}

1;
1	package Redis::Hash;
2
3	use strict;
4	use warnings;
5
6	use Tie::Hash;
7	use base qw/Redis Tie::StdHash/;
8
9	use Data::Dump qw/dump/;
10
11	=head1 NAME
12
13	Redis::Hash - tie perl hashes into Redis
14
15	=head1 SYNOPSYS
16
17	tie %name, 'Redis::Hash', 'prefix';
18
19	my $o = tie %foobar, 'Redis::Hash', 'foobar';
20	print $o->info->{used_memory}; # or any redis command
21
22	=cut
23
24	# mandatory methods
25	sub TIEHASH {
26	my ($class,$name) = @_;
27	my $self = Redis->new;
28	$name .= ':' if $name;
29	$self->{name} = $name \|\| '';
30	bless $self => $class;
31	}
32
33	sub STORE {
34	my ($self,$key,$value) = @_;
35	$self->set( $self->{name} . $key, $value );
36	}
37
38	sub FETCH {
39	my ($self,$key) = @_;
40	$self->get( $self->{name} . $key );
41	}
42
43	sub FIRSTKEY {
44	my $self = shift;
45	$self->{keys} = [ $self->keys( $self->{name} . '*' ) ];
46	$self->NEXTKEY;
47	}
48
49	sub NEXTKEY {
50	my $self = shift;
51	my $key = shift @{ $self->{keys} } \|\| return;
52	my $name = $self->{name};
53	$key =~ s{^$name}{} \|\| warn "can't strip $name from $key";
54	return $key;
55	}
56
57	sub EXISTS {
58	my ($self,$key) = @_;
59	$self->exists( $self->{name} . $key );
60	}
61
62	sub DELETE {
63	my ($self,$key) = @_;
64	$self->del( $self->{name} . $key );
65	}
66
67	sub CLEAR {
68	my ($self) = @_;
69	$self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) );
70	$self->{keys} = [];
71	}
72
73	1;