Commit | Line | Data |
a4d36ff6 |
1 | package DBM::Deep::Sector::DBI::Reference; |
2 | |
3 | use 5.006_000; |
4 | |
5 | use strict; |
6 | use warnings FATAL => 'all'; |
7 | |
8 | use base 'DBM::Deep::Sector::DBI'; |
9 | |
10 | sub table { 'refs' } |
11 | |
12 | sub _init { |
13 | my $self = shift; |
14 | |
15 | my $e = $self->engine; |
16 | |
17 | unless ( $self->offset ) { |
18 | $self->{offset} = $self->engine->storage->write_to( |
19 | refs => undef, |
20 | ref_type => $self->type, |
21 | ); |
22 | } |
23 | else { |
24 | my ($rows) = $self->engine->storage->read_from( |
25 | refs => $self->offset, |
26 | qw( ref_type ), |
27 | ); |
28 | |
29 | $self->{type} = $rows->[0]{ref_type}; |
30 | } |
31 | |
32 | return; |
33 | } |
34 | |
35 | sub get_data_for { |
36 | my $self = shift; |
37 | my ($args) = @_; |
38 | |
39 | my ($rows) = $self->engine->storage->read_from( |
40 | datas => { ref_id => $self->offset, key => $args->{key} }, |
41 | qw( id ), |
42 | ); |
43 | |
44 | return unless $rows->[0]{id}; |
45 | |
46 | $self->load( |
47 | $self->engine, |
48 | $rows->[0]{id}, |
49 | 'datas', |
50 | ); |
51 | } |
52 | |
53 | sub write_data { |
54 | my $self = shift; |
55 | my ($args) = @_; |
56 | |
57 | $self->engine->storage->write_to( |
58 | datas => $args->{value}{offset}, |
59 | ref_id => $self->offset, |
60 | data_type => 'S', |
61 | key => $args->{key}, |
62 | value => $args->{value}{data}, |
63 | class => $args->{value}{class}, |
64 | ); |
65 | |
66 | $args->{value}->reload; |
67 | } |
68 | |
69 | sub delete_key { |
70 | my $self = shift; |
71 | my ($args) = @_; |
72 | |
73 | my $old_value = $self->get_data_for({ |
74 | key => $args->{key}, |
75 | }); |
76 | |
77 | my $data; |
78 | if ( $old_value ) { |
79 | $data = $old_value->data; |
80 | $old_value->free; |
81 | } |
82 | |
83 | return $data; |
84 | } |
85 | |
86 | 1; |
87 | __END__ |