9 my $schema = DBICTest->init_schema();
12 # while cds.* will be selected anyway (prefetch currently forces the result of _resolve_prefetch)
13 # only the requested me.name/me.artistid columns will be fetched.
15 # reference sql with select => [...]
16 # SELECT me.name, cds.title, me.artistid, cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track FROM ...
18 my $rs = $schema->resultset('Artist')->search(
19 { 'cds.title' => { '!=', 'Generic Manufactured Singles' } },
21 prefetch => [ qw/ cds / ],
22 order_by => [ { -desc => 'me.name' }, 'cds.title' ],
23 select => [qw/ me.name cds.title me.artistid / ],
27 is ($rs->count, 2, 'Correct number of collapsed artists');
28 my $we_are_goth = $rs->first;
29 is ($we_are_goth->name, 'We Are Goth', 'Correct first artist');
30 is ($we_are_goth->cds->count, 1, 'Correct number of CDs for first artist');
31 is ($we_are_goth->cds->first->title, 'Come Be Depressed With Us', 'Correct cd for artist');
32 }, 'explicit prefetch on a keyless object works');
36 my $rs = $schema->resultset('CD')->search(
39 order_by => [ { -desc => 'me.year' } ],
42 my $years = [qw/ 2001 2001 1999 1998 1997/];
45 [ $rs->search->get_column('me.year')->all ],
47 'Expected years (at least one duplicate)',
51 for my $cd ($rs->all) {
52 my $data = { year => $cd->year, cdid => $cd->cdid };
53 for my $tr ($cd->tracks->all) {
54 push @{$data->{tracks}}, { $tr->get_columns };
56 push @cds_and_tracks, $data;
59 my $pref_rs = $rs->search ({}, { columns => [qw/year cdid/], prefetch => 'tracks' });
61 my @pref_cds_and_tracks;
62 for my $cd ($pref_rs->all) {
63 my $data = { $cd->get_columns };
64 for my $tr ($cd->tracks->all) {
65 push @{$data->{tracks}}, { $tr->get_columns };
67 push @pref_cds_and_tracks, $data;
71 \@pref_cds_and_tracks,
73 'Correct collapsing on non-unique primary object'
77 [ $pref_rs->search ({}, { result_class => 'DBIx::Class::ResultClass::HashRefInflator' })->all ],
79 'Correct HRI collapsing on non-unique primary object'
82 }, 'weird collapse lives');
86 # test implicit prefetch as well
88 my $rs = $schema->resultset('CD')->search(
89 { title => 'Generic Manufactured Singles' },
92 select => [qw/ me.title artist.name / ],
97 is ($cd->title, 'Generic Manufactured Singles', 'CD title prefetched correctly');
98 isa_ok ($cd->artist, 'DBICTest::Artist');
99 is ($cd->artist->name, 'Random Boy Band', 'Artist object has correct name');
101 }, 'implicit keyless prefetch works');
106 $schema->resultset('Track')->search({}, { join => { cd => 'artist' }, '+columns' => 'artist.name' } )->next;
108 qr|\QCan't inflate prefetch into non-existent relationship 'artist' from 'Track', check the inflation specification (columns/as) ending in '...artist.name'|,
109 'Sensible error message on mis-specified "as"',
112 # check complex limiting prefetch without the join-able columns
114 my $pref_rs = $schema->resultset('Owners')->search({}, {
117 columns => 'name', # only the owner name, still prefetch all the books
122 is ($pref_rs->all, 1, 'Expected count of objects on limtied prefetch')
123 } "Complex limited prefetch works with non-selected join condition";