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1 | use strict; |
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2 | use warnings; |
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3 | |
4 | use Test::More; |
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5 | use Test::Deep; |
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6 | use Test::Exception; |
7 | use lib qw(t/lib); |
8 | use DBICTest; |
9 | |
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10 | my $schema = DBICTest->init_schema(); |
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11 | |
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12 | lives_ok(sub { |
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13 | # while cds.* will be selected anyway (prefetch implies it) |
14 | # only the requested me.name column will be fetched. |
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15 | |
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16 | # reference sql with select => [...] |
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17 | # SELECT me.name, cds.title, cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track FROM ... |
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18 | |
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19 | my $rs = $schema->resultset('Artist')->search( |
20 | { 'cds.title' => { '!=', 'Generic Manufactured Singles' } }, |
21 | { |
22 | prefetch => [ qw/ cds / ], |
23 | order_by => [ { -desc => 'me.name' }, 'cds.title' ], |
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24 | select => [qw/ me.name cds.title / ], |
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25 | }, |
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26 | ); |
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27 | |
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28 | is ($rs->count, 2, 'Correct number of collapsed artists'); |
29 | my $we_are_goth = $rs->first; |
30 | is ($we_are_goth->name, 'We Are Goth', 'Correct first artist'); |
31 | is ($we_are_goth->cds->count, 1, 'Correct number of CDs for first artist'); |
32 | is ($we_are_goth->cds->first->title, 'Come Be Depressed With Us', 'Correct cd for artist'); |
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33 | }, 'explicit prefetch on a keyless object works'); |
34 | |
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35 | lives_ok ( sub { |
36 | |
37 | my $rs = $schema->resultset('CD')->search( |
38 | {}, |
39 | { |
40 | order_by => [ { -desc => 'me.year' } ], |
41 | } |
42 | ); |
43 | my $years = [qw/ 2001 2001 1999 1998 1997/]; |
44 | |
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45 | cmp_deeply ( |
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46 | [ $rs->search->get_column('me.year')->all ], |
47 | $years, |
48 | 'Expected years (at least one duplicate)', |
49 | ); |
50 | |
51 | my @cds_and_tracks; |
52 | for my $cd ($rs->all) { |
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53 | my $data = { year => $cd->year, cdid => $cd->cdid }; |
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54 | for my $tr ($cd->tracks->all) { |
55 | push @{$data->{tracks}}, { $tr->get_columns }; |
56 | } |
57 | push @cds_and_tracks, $data; |
58 | } |
59 | |
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60 | my $pref_rs = $rs->search ({}, { columns => [qw/year cdid/], prefetch => 'tracks' }); |
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61 | |
62 | my @pref_cds_and_tracks; |
63 | for my $cd ($pref_rs->all) { |
64 | my $data = { $cd->get_columns }; |
65 | for my $tr ($cd->tracks->all) { |
66 | push @{$data->{tracks}}, { $tr->get_columns }; |
67 | } |
68 | push @pref_cds_and_tracks, $data; |
69 | } |
70 | |
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71 | cmp_deeply ( |
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72 | \@pref_cds_and_tracks, |
73 | \@cds_and_tracks, |
74 | 'Correct collapsing on non-unique primary object' |
75 | ); |
76 | |
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77 | cmp_deeply ( |
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78 | [ $pref_rs->search ({}, { result_class => 'DBIx::Class::ResultClass::HashRefInflator' })->all ], |
79 | \@cds_and_tracks, |
80 | 'Correct HRI collapsing on non-unique primary object' |
81 | ); |
82 | |
83 | }, 'weird collapse lives'); |
84 | |
85 | |
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86 | lives_ok(sub { |
87 | # test implicit prefetch as well |
88 | |
89 | my $rs = $schema->resultset('CD')->search( |
90 | { title => 'Generic Manufactured Singles' }, |
91 | { |
92 | join=> 'artist', |
93 | select => [qw/ me.title artist.name / ], |
94 | } |
95 | ); |
96 | |
97 | my $cd = $rs->next; |
98 | is ($cd->title, 'Generic Manufactured Singles', 'CD title prefetched correctly'); |
99 | isa_ok ($cd->artist, 'DBICTest::Artist'); |
100 | is ($cd->artist->name, 'Random Boy Band', 'Artist object has correct name'); |
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101 | |
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102 | }, 'implicit keyless prefetch works'); |
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103 | |
104 | # sane error |
105 | throws_ok( |
106 | sub { |
107 | $schema->resultset('Track')->search({}, { join => { cd => 'artist' }, '+columns' => 'artist.name' } )->next; |
108 | }, |
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109 | qr|\QInflation into non-existent relationship 'artist' of 'Track' requested, check the inflation specification (columns/as) ending in '...artist.name'|, |
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110 | 'Sensible error message on mis-specified "as"', |
111 | ); |
112 | |
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113 | # check complex limiting prefetch without the join-able columns |
114 | { |
115 | my $pref_rs = $schema->resultset('Owners')->search({}, { |
116 | rows => 3, |
117 | offset => 1, |
118 | columns => 'name', # only the owner name, still prefetch all the books |
119 | prefetch => 'books', |
120 | }); |
121 | |
122 | lives_ok { |
123 | is ($pref_rs->all, 1, 'Expected count of objects on limtied prefetch') |
124 | } "Complex limited prefetch works with non-selected join condition"; |
125 | } |
126 | |
127 | |
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128 | done_testing; |