Commit | Line | Data |
64acc2bc |
1 | sub run_tests { |
2 | my $schema = shift; |
3 | |
4 | eval "use DBD::SQLite"; |
5 | plan skip_all => 'needs DBD::SQLite for testing' if $@; |
f9cc31dd |
6 | plan tests => 12; |
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7 | |
a86b1efe |
8 | warn " |
9 | This test WILL fail. That's because the has_many prefetch code is |
10 | only half re-written. However, it was utterly borken before, so |
11 | this is arguably an improvement. If you fancy having a go at making |
12 | _construct_object in resultset collapse multiple results into |
13 | appropriate nested structures for inflate_result, be my guest. |
14 | -- mst |
15 | |
16 | "; |
17 | |
64acc2bc |
18 | my $rs = $schema->resultset("Artist")->search( |
19 | { artistid => 1 } |
20 | ); |
21 | |
22 | my $artist = $rs->first; |
23 | |
24 | is( scalar @{ $rs->get_cache }, 0, 'cache is not populated without cache attribute' ); |
25 | |
26 | $rs = $schema->resultset("Artist")->search( |
27 | { 'artistid' => 1 }, |
28 | { |
3c3c416e |
29 | join => [ qw/ cds /], |
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30 | prefetch => [qw/ cds /], |
64acc2bc |
31 | } |
32 | ); |
33 | |
f9cc31dd |
34 | use Data::Dumper; $Data::Dumper::Deparse = 1; |
64acc2bc |
35 | |
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'); |
39 | |
40 | $artist = $rs->first; |
41 | $rs->reset(); |
42 | |
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' ); |
45 | |
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'); |
48 | |
49 | # ensure that $artist->cds returns correct number of objects |
50 | is( scalar ($artist->cds), 3, 'artist->cds returns correct number of objects' ); |
51 | |
52 | # ensure that $artist->cds->count returns correct value |
53 | is( $artist->cds->count, 3, 'artist->cds->count returns correct value' ); |
54 | |
55 | # ensure that $artist->count_related('cds') returns correct value |
56 | is( $artist->count_related('cds'), 3, 'artist->count_related returns correct value' ); |
57 | |
58 | # count the SELECTs |
59 | DBI->trace(0, undef); |
60 | my $selects = 0; |
61 | my $trace = IO::File->new('t/var/dbic.trace', '<') |
62 | or die "Unable to read trace file"; |
63 | while (<$trace>) { |
64 | $selects++ if /SELECT/; |
65 | } |
66 | $trace->close; |
67 | unlink 't/var/dbic.trace'; |
68 | is($selects, 2, 'only one SQL statement for each cached table'); |
69 | |
70 | # make sure related_resultset is deleted after object is updated |
71 | $artist->set_column('name', 'New Name'); |
72 | $artist->update(); |
73 | |
74 | is( scalar keys %{$artist->{related_resultsets}}, 0, 'related resultsets deleted after update' ); |
75 | |
76 | # todo: make sure caching works with nested prefetch e.g. $artist->cds->tracks |
77 | $rs = $schema->resultset("Artist")->search( |
78 | { artistid => 1 }, |
79 | { |
3c3c416e |
80 | join => { cds => 'tags' }, |
64acc2bc |
81 | prefetch => { |
82 | cds => 'tags' |
83 | }, |
64acc2bc |
84 | } |
85 | ); |
86 | |
f9cc31dd |
87 | # SELECT count for nested has_many prefetch |
88 | unlink 't/var/dbic.trace' if -e 't/var/dbic.trace'; |
89 | DBI->trace(1, 't/var/dbic.trace'); |
90 | |
91 | $artist = $rs->first; |
92 | |
93 | # count the SELECTs |
94 | DBI->trace(0, undef); |
6e3b590d |
95 | $selects = 0; |
96 | $trace = IO::File->new('t/var/dbic.trace', '<') |
f9cc31dd |
97 | or die "Unable to read trace file"; |
98 | while (<$trace>) { |
99 | $selects++ if /SELECT/; |
100 | } |
101 | $trace->close; |
102 | unlink 't/var/dbic.trace'; |
103 | is($selects, 3, 'one SQL statement for each cached table with nested prefetch'); |
104 | |
105 | my @objs; |
6e3b590d |
106 | $artist = $rs->find(1); |
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107 | |
108 | unlink 't/var/dbic.trace' if -e 't/var/dbic.trace'; |
109 | DBI->trace(1, 't/var/dbic.trace'); |
110 | |
111 | my $cds = $artist->cds; |
112 | my $tags = $cds->next->tags; |
113 | while( my $tag = $tags->next ) { |
114 | push @objs, $tag->tagid; #warn "tag:", $tag->ID; |
115 | } |
116 | |
117 | is_deeply( \@objs, [ 1 ], 'first cd has correct tags' ); |
118 | |
119 | $tags = $cds->next->tags; |
120 | @objs = (); |
121 | while( my $tag = $tags->next ) { |
122 | push @objs, $tag->id; #warn "tag: ", $tag->ID; |
123 | } |
124 | |
125 | is_deeply( \@objs, [ 2, 5, 8 ], 'second cd has correct tags' ); |
126 | |
127 | # count the SELECTs |
128 | DBI->trace(0, undef); |
6e3b590d |
129 | $selects = 0; |
130 | $trace = IO::File->new('t/var/dbic.trace', '<') |
f9cc31dd |
131 | or die "Unable to read trace file"; |
132 | while (<$trace>) { |
133 | $selects++ if /SELECT/; |
134 | } |
135 | $trace->close; |
136 | unlink 't/var/dbic.trace'; |
137 | |
138 | is( $selects, 0, 'no additional SQL statements while checking nested data' ); |
139 | |
64acc2bc |
140 | } |
141 | |
142 | 1; |