7 use DBIC::SqlMakerTest;
9 my $schema = DBICTest->init_schema();
11 my $cd_rs = $schema->resultset('CD')->search (
12 { 'tracks.cd' => { '!=', undef } },
13 { prefetch => ['tracks', 'artist'] },
16 is($cd_rs->count, 5, 'CDs with tracks count');
17 is($cd_rs->search_related('tracks')->count, 15, 'Tracks associated with CDs count (before SELECT()ing)');
19 is($cd_rs->all, 5, 'Amount of CD objects with tracks');
20 is($cd_rs->search_related('tracks')->count, 15, 'Tracks associated with CDs count (after SELECT()ing)');
22 is($cd_rs->search_related ('tracks')->all, 15, 'Track objects associated with CDs (after SELECT()ing)');
24 my $artist = $schema->resultset('Artist')->create({name => 'xxx'});
26 my $artist_rs = $schema->resultset('Artist')->search(
27 {artistid => $artist->id},
28 {prefetch=>'cds', join => 'twokeys' }
31 is($artist_rs->count, 1, "New artist found with prefetch turned on");
32 is(scalar($artist_rs->all), 1, "New artist fetched with prefetch turned on");
33 is($artist_rs->related_resultset('cds')->count, 0, "No CDs counted on a brand new artist");
34 is(scalar($artist_rs->related_resultset('cds')->all), 0, "No CDs fetched on a brand new artist (count == fetch)");
36 # create a cd, and make sure the non-existing join does not skew the count
37 $artist->create_related ('cds', { title => 'yyy', year => '1999' });
38 is($artist_rs->related_resultset('cds')->count, 1, "1 CDs counted on a brand new artist");
39 is(scalar($artist_rs->related_resultset('cds')->all), 1, "1 CDs prefetched on a brand new artist (count == fetch)");
41 # Really fuck shit up with one more cd and some insanity
42 # this doesn't quite work as there are the prefetch gets lost
43 # on search_related. This however is too esoteric to fix right
46 my $cd2 = $artist->create_related ('cds', {
49 tracks => [{ title => 'ping' }, { title => 'pong' }],
52 my $cds = $cd2->search_related ('artist', {}, { join => 'twokeys' })
53 ->search_related ('cds');
54 my $tracks = $cds->search_related ('tracks');
56 is($tracks->count, 2, "2 Tracks counted on cd via artist via one of the cds");
57 is(scalar($tracks->all), 2, "2 Track objects on cd via artist via one of the cds");
59 is($cds->count, 2, "2 CDs counted on artist via one of the cds");
60 is(scalar($cds->all), 2, "2 CD objectson artist via one of the cds");
62 # make sure the join collapses all the way
64 $tracks->count_rs->as_query,
68 LEFT JOIN twokeys twokeys ON twokeys.artist = me.artistid
69 JOIN cd cds ON cds.artist = me.artistid
70 JOIN track tracks ON tracks.cd = cds.cdid
71 WHERE ( me.artistid = ? )
73 [ [ { sqlt_datatype => 'integer', dbic_colname => 'me.artistid' }
78 local $TODO = "Chaining with prefetch is fundamentally broken";
79 $schema->is_executed_querycount( sub {
81 my $cds = $cd2->search_related ('artist', {}, { prefetch => { cds => 'tracks' }, join => 'twokeys' })
82 ->search_related ('cds');
84 my $tracks = $cds->search_related ('tracks');
86 is($tracks->count, 2, "2 Tracks counted on cd via artist via one of the cds");
87 is(scalar($tracks->all), 2, "2 Tracks prefetched on cd via artist via one of the cds");
88 is($tracks->count, 2, "Cached 2 Tracks counted on cd via artist via one of the cds");
90 is($cds->count, 2, "2 CDs counted on artist via one of the cds");
91 is(scalar($cds->all), 2, "2 CDs prefetched on artist via one of the cds");
92 is($cds->count, 2, "Cached 2 CDs counted on artist via one of the cds");
93 }, 3, '2 counts + 1 prefetch?' );