File: CD.pm

package info (click to toggle)
libdbix-class-resultset-recursiveupdate-perl 0.45-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,060 kB
  • sloc: perl: 5,130; sql: 640; makefile: 2
file content (132 lines) | stat: -rw-r--r-- 3,910 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
package # hide from PAUSE
    DBICTest::Schema::CD;

use base qw/DBICTest::BaseResult/;

# this tests table name as scalar ref
# DO NOT REMOVE THE \
__PACKAGE__->table(\'cd');

__PACKAGE__->add_columns(
  'cdid' => {
    data_type => 'integer',
    is_auto_increment => 1,
  },
  'artist' => {
    data_type => 'integer',
  },
  'title' => {
    data_type => 'varchar',
    size      => 100,
  },
  'year' => {
    data_type => 'varchar',
    size      => 100,
  },
  'genreid' => {
    data_type => 'integer',
    is_nullable => 1,
    accessor => undef,
  },
  'single_track' => {
    data_type => 'integer',
    is_nullable => 1,
    is_foreign_key => 1,
  }
);
__PACKAGE__->set_primary_key('cdid');
__PACKAGE__->add_unique_constraint([ qw/artist title/ ]);

__PACKAGE__->belongs_to( artist => 'DBICTest::Schema::Artist', undef, {
    is_deferrable => 1,
    proxy => { artist_name => 'name' },
});
__PACKAGE__->belongs_to( very_long_artist_relationship => 'DBICTest::Schema::Artist', 'artist', {
    is_deferrable => 1,
});

# in case this is a single-cd it promotes a track from another cd
__PACKAGE__->belongs_to( single_track => 'DBICTest::Schema::Track', 'single_track',
    { join_type => 'left'}
);

# add a non-left single relationship for the complex prefetch tests
__PACKAGE__->belongs_to( existing_single_track => 'DBICTest::Schema::Track', 'single_track');

__PACKAGE__->has_many( tracks => 'DBICTest::Schema::Track' );
__PACKAGE__->has_many(
    tags => 'DBICTest::Schema::Tag', undef,
    { order_by => 'tag' },
);
__PACKAGE__->has_many(
    cd_to_producer => 'DBICTest::Schema::CD_to_Producer' => 'cd'
);

__PACKAGE__->might_have(
    liner_notes => 'DBICTest::Schema::LinerNotes', undef,
    { proxy => [ qw/notes/ ] },
);
__PACKAGE__->might_have(artwork => 'DBICTest::Schema::Artwork', 'cd_id');
__PACKAGE__->has_one(mandatory_artwork => 'DBICTest::Schema::Artwork', 'cd_id');

__PACKAGE__->many_to_many( producers => cd_to_producer => 'producer' );
__PACKAGE__->many_to_many(
    producers_sorted => cd_to_producer => 'producer',
    { order_by => 'producer.name' },
);

__PACKAGE__->belongs_to('genre', 'DBICTest::Schema::Genre',
    { 'foreign.genreid' => 'self.genreid' },
    {
        join_type => 'left',
        on_delete => 'SET NULL',
        on_update => 'CASCADE',
    },
);

#This second relationship was added to test the short-circuiting of pointless
#queries provided by undef_on_null_fk. the relevant test in 66relationship.t
__PACKAGE__->belongs_to('genre_inefficient', 'DBICTest::Schema::Genre',
    { 'foreign.genreid' => 'self.genreid' },
    {
        join_type => 'left',
        on_delete => 'SET NULL',
        on_update => 'CASCADE',
        undef_on_null_fk => 0,
    },
);


# This is insane. Don't ever do anything like that
# This is for testing purposes only!

# mst: mo: DBIC is an "object relational mapper"
# mst: mo: not an "object relational hider-because-mo-doesn't-understand-databases
# ribasushi: mo: try it with a subselect nevertheless, I'd love to be proven wrong
# ribasushi: mo: does sqlite actually take this?
# ribasushi: an order in a correlated subquery is insane - how long does it take you on real data?

__PACKAGE__->might_have(
    'last_track',
    'DBICTest::Schema::Track',
    sub {
        my $args = shift;
        return (
            {
                "$args->{foreign_alias}.trackid" => { '=' =>
                    $args->{self_resultsource}->schema->resultset('Track')->search(
                       { 'correlated_tracks.cd' => { -ident => "$args->{self_alias}.cdid" } },
                       {
                          order_by => { -desc => 'position' },
                          rows     => 1,
                          alias    => 'correlated_tracks',
                          columns  => ['trackid']
                       },
                    )->as_query
                }
            }
        );
    },
);

1;