4 eval "use DBD::SQLite";
5 plan skip_all => 'needs DBD::SQLite for testing' if $@;
8 my $rs = $schema->resultset("Artist")->search(
12 my $artist = $rs->first;
14 is( scalar @{ $rs->get_cache }, 0, 'cache is not populated without cache attribute' );
16 my @a = $schema->resultset("Artist")->search(
20 prefetch => [qw/ cds /],
24 is(scalar @a, 3, 'artist with cds: count parent objects');
26 $rs = $schema->resultset("Artist")->search(
30 prefetch => [qw/ cds /],
34 use Data::Dumper; $Data::Dumper::Deparse = 1;
36 # start test for prefetch SELECT count
37 unlink 't/var/dbic.trace' if -e 't/var/dbic.trace';
38 DBI->trace(1, 't/var/dbic.trace');
43 # make sure artist contains a related resultset for cds
44 is( ref $artist->{related_resultsets}->{cds}, 'DBIx::Class::ResultSet', 'artist has a related_resultset for cds' );
46 # check if $artist->cds->get_cache is populated
47 is( scalar @{$artist->cds->get_cache}, 3, 'cache for artist->cds contains correct number of records');
49 # ensure that $artist->cds returns correct number of objects
50 is( scalar ($artist->cds), 3, 'artist->cds returns correct number of objects' );
52 # ensure that $artist->cds->count returns correct value
53 is( $artist->cds->count, 3, 'artist->cds->count returns correct value' );
55 # ensure that $artist->count_related('cds') returns correct value
56 is( $artist->count_related('cds'), 3, 'artist->count_related returns correct value' );
61 my $trace = IO::File->new('t/var/dbic.trace', '<')
62 or die "Unable to read trace file";
64 $selects++ if /SELECT/;
67 unlink 't/var/dbic.trace';
68 is($selects, 1, 'only one SQL statement executed');
70 # make sure related_resultset is deleted after object is updated
71 $artist->set_column('name', 'New Name');
74 is( scalar keys %{$artist->{related_resultsets}}, 0, 'related resultsets deleted after update' );
76 # todo: make sure caching works with nested prefetch e.g. $artist->cds->tracks
77 $rs = $schema->resultset("Artist")->search(
80 join => { cds => 'tags' },
87 $schema->resultset("Artist")->create({artistid=>4,name=>qq{Humoungous Hamsters}});
88 my $artist = $schema->resultset("Artist")->search(
89 { artistid => 4 },{prefetch=>[qw/cds/]}
92 is($artist->cds, 0, 'No cds for this artist');
95 # SELECT count for nested has_many prefetch
96 unlink 't/var/dbic.trace' if -e 't/var/dbic.trace';
97 DBI->trace(1, 't/var/dbic.trace');
99 $artist = ($rs->all)[0];
102 DBI->trace(0, undef);
104 $trace = IO::File->new('t/var/dbic.trace', '<')
105 or die "Unable to read trace file";
107 $selects++ if /SELECT/;
110 unlink 't/var/dbic.trace';
111 is($selects, 1, 'only one SQL statement executed');
114 #$artist = $rs->find(1);
116 unlink 't/var/dbic.trace' if -e 't/var/dbic.trace';
117 DBI->trace(1, 't/var/dbic.trace');
119 my $cds = $artist->cds;
120 my $tags = $cds->next->tags;
121 while( my $tag = $tags->next ) {
122 push @objs, $tag->tagid; #warn "tag:", $tag->ID, " => ", $tag->tag;
125 is_deeply( \@objs, [ 3 ], 'first cd has correct tags' );
127 $tags = $cds->next->tags;
129 while( my $tag = $tags->next ) {
130 push @objs, $tag->id; #warn "tag: ", $tag->ID;
133 is_deeply( \@objs, [ 2, 5, 8 ], 'second cd has correct tags' );
136 DBI->trace(0, undef);
138 $trace = IO::File->new('t/var/dbic.trace', '<')
139 or die "Unable to read trace file";
141 $selects++ if /SELECT/;
144 unlink 't/var/dbic.trace';
146 is( $selects, 0, 'no additional SQL statements while checking nested data' );
148 # start test for prefetch SELECT count
149 unlink 't/var/dbic.trace' if -e 't/var/dbic.trace';
150 DBI->trace(1, 't/var/dbic.trace');
152 $artist = $schema->resultset('Artist')->find(1, { prefetch => [qw/cds/] });
155 DBI->trace(0, undef);
157 $trace = IO::File->new('t/var/dbic.trace', '<')
158 or die "Unable to read trace file";
160 $selects++ if /SELECT/;
163 unlink 't/var/dbic.trace';
165 is( $selects, 1, 'only one select statement on find with inline has_many prefetch' );
167 # start test for prefetch SELECT count
168 unlink 't/var/dbic.trace' if -e 't/var/dbic.trace';
169 DBI->trace(1, 't/var/dbic.trace');
171 $rs = $schema->resultset('Artist')->search(undef, { prefetch => [qw/cds/] });
172 $artist = $rs->find(1);
175 DBI->trace(0, undef);
177 $trace = IO::File->new('t/var/dbic.trace', '<')
178 or die "Unable to read trace file";
180 $selects++ if /SELECT/;
183 unlink 't/var/dbic.trace';
185 is( $selects, 1, 'only one select statement on find with has_many prefetch on resultset' );