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70350518 |
1 | use strict; |
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2 | use warnings; |
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3 | |
4 | use Test::More; |
5 | use lib qw(t/lib); |
6 | use DBICTest; |
7 | |
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8 | my $schema = DBICTest->init_schema(); |
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9 | |
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10 | my $rs = $schema->resultset("Artist")->search( |
11 | { artistid => 1 } |
12 | ); |
13 | |
14 | my $artist = $rs->first; |
15 | |
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16 | ok( !defined($rs->get_cache), 'cache is not populated without cache attribute' ); |
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17 | |
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18 | $rs = $schema->resultset('Artist')->search( undef, { cache => 1 } ); |
19 | my $artists = [ $rs->all ]; |
20 | |
21 | is( scalar @{$rs->get_cache}, 3, 'all() populates cache for search with cache attribute' ); |
22 | |
23 | $rs->clear_cache; |
24 | |
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25 | ok( !defined($rs->get_cache), 'clear_cache is functional' ); |
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26 | |
27 | $rs->next; |
28 | |
29 | is( scalar @{$rs->get_cache}, 3, 'next() populates cache for search with cache attribute' ); |
30 | |
31 | pop( @$artists ); |
32 | $rs->set_cache( $artists ); |
33 | |
34 | is( scalar @{$rs->get_cache}, 2, 'set_cache() is functional' ); |
35 | |
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36 | my $cd = $schema->resultset('CD')->find(1); |
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37 | |
38 | $rs->clear_cache; |
39 | |
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40 | $schema->is_executed_querycount( sub { |
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41 | |
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42 | $rs = $schema->resultset('Artist')->search( undef, { cache => 1 } ); |
43 | while( $artist = $rs->next ) {} |
44 | $artist = $rs->first(); |
45 | }, 1, 'revisiting a row does not issue a query when cache => 1' ); |
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46 | |
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47 | my @a = $schema->resultset("Artist")->search( |
48 | { }, |
49 | { |
50 | join => [ qw/ cds /], |
51 | prefetch => [qw/ cds /], |
52 | } |
53 | ); |
54 | |
55 | is(scalar @a, 3, 'artist with cds: count parent objects'); |
56 | |
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57 | $rs = $schema->resultset("Artist")->search( |
58 | { 'artistid' => 1 }, |
59 | { |
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60 | join => [ qw/ cds /], |
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61 | prefetch => [qw/ cds /], |
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62 | } |
63 | ); |
64 | |
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65 | # prefetch SELECT count |
66 | $schema->is_executed_querycount( sub { |
67 | $artist = $rs->first; |
68 | $rs->reset(); |
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69 | |
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70 | # make sure artist contains a related resultset for cds |
71 | isa_ok( $artist->{related_resultsets}{cds}, 'DBIx::Class::ResultSet', 'artist has a related_resultset for cds' ); |
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72 | |
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73 | # check if $artist->cds->get_cache is populated |
74 | is( scalar @{$artist->cds->get_cache}, 3, 'cache for artist->cds contains correct number of records'); |
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75 | |
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76 | # ensure that $artist->cds returns correct number of objects |
77 | is( scalar ($artist->cds), 3, 'artist->cds returns correct number of objects' ); |
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78 | |
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79 | # ensure that $artist->cds->count returns correct value |
80 | is( $artist->cds->count, 3, 'artist->cds->count returns correct value' ); |
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81 | |
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82 | # ensure that $artist->count_related('cds') returns correct value |
83 | is( $artist->count_related('cds'), 3, 'artist->count_related returns correct value' ); |
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84 | |
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85 | }, 1, 'only one SQL statement executed'); |
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86 | |
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87 | |
88 | # make sure related_resultset is deleted after object is updated |
89 | $artist->set_column('name', 'New Name'); |
90 | $artist->update(); |
91 | |
92 | is( scalar keys %{$artist->{related_resultsets}}, 0, 'related resultsets deleted after update' ); |
93 | |
94 | # todo: make sure caching works with nested prefetch e.g. $artist->cds->tracks |
95 | $rs = $schema->resultset("Artist")->search( |
96 | { artistid => 1 }, |
97 | { |
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98 | join => { cds => 'tags' }, |
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99 | prefetch => { |
100 | cds => 'tags' |
101 | }, |
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102 | order_by => { -desc => 'cds.cdid' }, |
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103 | } |
104 | ); |
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105 | { |
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106 | my $artist_count_before = $schema->resultset('Artist')->count; |
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107 | $schema->resultset("Artist")->create({artistid=>4,name=>qq{Humoungous Hamsters}}); |
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108 | is($schema->resultset('Artist')->count, $artist_count_before + 1, 'count() reflects new artist'); |
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109 | my $artist = $schema->resultset("Artist")->search( |
110 | { artistid => 4 },{prefetch=>[qw/cds/]} |
111 | )->first; |
112 | |
113 | is($artist->cds, 0, 'No cds for this artist'); |
114 | } |
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115 | |
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116 | # SELECT count for nested has_many prefetch |
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117 | $schema->is_executed_querycount( sub { |
118 | $artist = ($rs->all)[0]; |
119 | }, 1, 'only one SQL statement executed'); |
120 | |
121 | $schema->is_executed_querycount( sub { |
122 | my @objs; |
123 | my $cds = $artist->cds; |
124 | my $tags = $cds->next->tags; |
125 | while( my $tag = $tags->next ) { |
126 | push @objs, $tag->tagid; #warn "tag:", $tag->ID, " => ", $tag->tag; |
127 | } |
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128 | |
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129 | is_deeply( \@objs, [ 3 ], 'first cd has correct tags' ); |
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130 | |
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131 | $tags = $cds->next->tags; |
132 | @objs = (); |
133 | while( my $tag = $tags->next ) { |
134 | push @objs, $tag->id; #warn "tag: ", $tag->ID; |
135 | } |
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136 | |
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137 | is_deeply( [ sort @objs] , [ 2, 5, 8 ], 'third cd has correct tags' ); |
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138 | |
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139 | $tags = $cds->next->tags; |
140 | @objs = (); |
141 | while( my $tag = $tags->next ) { |
142 | push @objs, $tag->id; #warn "tag: ", $tag->ID; |
143 | } |
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144 | |
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145 | is_deeply( \@objs, [ 1 ], 'second cd has correct tags' ); |
146 | }, 0, 'no additional SQL statements while checking nested data' ); |
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147 | |
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148 | $schema->is_executed_querycount( sub { |
149 | $artist = $schema->resultset('Artist')->find(1, { prefetch => [qw/cds/] }); |
150 | }, 1, 'only one select statement on find with inline has_many prefetch' ); |
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151 | |
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152 | $schema->is_executed_querycount( sub { |
153 | $rs = $schema->resultset('Artist')->search(undef, { prefetch => [qw/cds/] }); |
154 | $artist = $rs->find(1); |
155 | }, 1, 'only one select statement on find with has_many prefetch on resultset' ); |
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156 | |
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157 | done_testing; |