Commit | Line | Data |
0c5ea449 |
1 | use strict; |
2 | use warnings; |
3 | use Test::More; |
4 | |
5 | use lib qw(t/lib); |
6 | use DBICTest; |
7 | use DBIC::SqlMakerTest; |
8 | |
9 | #plan tests => 6; |
10 | plan 'no_plan'; |
11 | |
12 | my $schema = DBICTest->init_schema(); |
a2287768 |
13 | my $sdebug = $schema->storage->debug; |
0c5ea449 |
14 | |
15 | my $cd_rs = $schema->resultset('CD')->search ( |
16 | { 'tracks.cd' => { '!=', undef } }, |
17 | { prefetch => 'tracks' }, |
18 | ); |
19 | |
20 | # Database sanity check |
21 | is($cd_rs->count, 5, 'CDs with tracks count'); |
22 | for ($cd_rs->all) { |
23 | is ($_->tracks->count, 3, '3 tracks for CD' . $_->id ); |
24 | } |
25 | |
26 | # Test a belongs_to prefetch of a has_many |
27 | { |
28 | my $track_rs = $schema->resultset ('Track')->search ( |
29 | { 'me.cd' => { -in => [ $cd_rs->get_column ('cdid')->all ] } }, |
30 | { |
31 | # the select/as is deliberately silly to test both funcs and refs below |
32 | select => [ |
33 | 'me.cd', |
0c5ea449 |
34 | { count => 'me.trackid' }, |
35 | ], |
36 | as => [qw/ |
37 | cd |
38 | track_count |
0c5ea449 |
39 | /], |
40 | group_by => [qw/me.cd/], |
41 | prefetch => 'cd', |
42 | }, |
43 | ); |
44 | |
45 | is($track_rs->count, 5, 'Prefetched count with groupby'); |
46 | is($track_rs->all, 5, 'Prefetched objects with groupby'); |
47 | |
48 | { |
49 | my $query_cnt = 0; |
50 | $schema->storage->debugcb ( sub { $query_cnt++ } ); |
a2287768 |
51 | $schema->storage->debug (1); |
0c5ea449 |
52 | |
53 | $track_rs->reset; |
54 | while (my $collapsed_track = $track_rs->next) { |
0c5ea449 |
55 | my $cdid = $collapsed_track->get_column('cd'); |
56 | is($collapsed_track->get_column('track_count'), 3, "Correct count of tracks for CD $cdid" ); |
57 | ok($collapsed_track->cd->title, "Prefetched title for CD $cdid" ); |
58 | } |
59 | |
60 | is ($query_cnt, 0, 'No queries on prefetched titles'); |
61 | $schema->storage->debugcb (undef); |
a2287768 |
62 | $schema->storage->debug ($sdebug); |
0c5ea449 |
63 | } |
64 | |
65 | # Test sql by hand, as the sqlite db will simply paper over |
66 | # improper group/select combinations |
67 | # |
68 | # the exploded IN needs fixing below, coming in another branch |
69 | # |
70 | is_same_sql_bind ( |
71 | $track_rs->count_rs->as_query, |
72 | '( |
73 | SELECT COUNT( * ) |
74 | FROM ( |
75 | SELECT me.cd |
76 | FROM track me |
77 | JOIN cd cd ON cd.cdid = me.cd |
78 | WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) ) |
79 | GROUP BY me.cd |
80 | ) |
81 | count_subq |
82 | )', |
83 | [ map { [ 'me.cd' => $_] } ($cd_rs->get_column ('cdid')->all) ], |
84 | 'count() query generated expected SQL', |
85 | ); |
86 | |
0c5ea449 |
87 | is_same_sql_bind ( |
88 | $track_rs->as_query, |
89 | '( |
5b45001f |
90 | SELECT me.cd, me.track_count, cd.cdid, cd.artist, cd.title, cd.year, cd.genreid, cd.single_track |
0c5ea449 |
91 | FROM ( |
5b45001f |
92 | SELECT me.cd, COUNT (me.trackid) AS track_count, |
0c5ea449 |
93 | FROM track me |
1c1937b7 |
94 | JOIN cd cd ON cd.cdid = me.cd |
95 | WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) ) |
0c5ea449 |
96 | GROUP BY me.cd |
97 | ) as me |
98 | JOIN cd cd ON cd.cdid = me.cd |
99 | WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) ) |
100 | )', |
1c1937b7 |
101 | [ map |
102 | { [ 'me.cd' => $_] } |
103 | ( $cd_rs->get_column ('cdid')->all, $cd_rs->get_column ('cdid')->all ) |
104 | ], |
0c5ea449 |
105 | 'next() query generated expected SQL', |
106 | ); |
107 | |
108 | |
109 | # add an extra track to one of the cds, and then make sure we can get it on top |
110 | # (check if limit works) |
111 | my $top_cd = $cd_rs->slice (1,1)->next; |
112 | $top_cd->create_related ('tracks', { |
113 | title => 'over the top', |
114 | }); |
115 | |
116 | my $top_cd_collapsed_track = $track_rs->search ({}, { |
117 | rows => 2, |
118 | order_by => [ |
119 | { -desc => 'track_count' }, |
120 | ], |
121 | }); |
122 | |
123 | is ($top_cd_collapsed_track->count, 2); |
124 | |
125 | is ( |
126 | $top_cd->title, |
127 | $top_cd_collapsed_track->first->cd->title, |
128 | 'Correct collapsed track with prefetched CD returned on top' |
129 | ); |
130 | } |
131 | |
132 | # test a has_many/might_have prefetch at the same level |
0c5ea449 |
133 | # Note that one of the CDs now has 4 tracks instead of 3 |
134 | { |
135 | my $most_tracks_rs = $cd_rs->search ({}, { |
136 | prefetch => 'liner_notes', # tracks are alredy prefetched |
137 | select => ['me.cdid', { count => 'tracks.trackid' } ], |
138 | as => [qw/cdid track_count/], |
139 | group_by => 'me.cdid', |
5b45001f |
140 | order_by => { -desc => 'track_count' }, |
0c5ea449 |
141 | rows => 2, |
142 | }); |
143 | |
144 | is_same_sql_bind ( |
145 | $most_tracks_rs->count_rs->as_query, |
146 | '( |
147 | SELECT COUNT( * ) |
148 | FROM ( |
149 | SELECT me.cdid |
150 | FROM cd me |
151 | LEFT JOIN track tracks ON tracks.cd = me.cdid |
152 | LEFT JOIN liner_notes liner_notes ON liner_notes.liner_id = me.cdid |
153 | WHERE ( tracks.cd IS NOT NULL ) |
154 | GROUP BY me.cdid |
155 | LIMIT 2 |
156 | ) count_subq |
157 | )', |
158 | [], |
159 | 'count() query generated expected SQL', |
160 | ); |
161 | |
162 | is_same_sql_bind ( |
163 | $most_tracks_rs->as_query, |
164 | '( |
1c1937b7 |
165 | SELECT me.cdid, me.track_count, tracks.trackid, tracks.cd, tracks.position, tracks.title, tracks.last_updated_on, tracks.last_updated_at, liner_notes.liner_id, liner_notes.notes |
0c5ea449 |
166 | FROM ( |
a57827b6 |
167 | SELECT me.cdid, COUNT( tracks.trackid ) AS track_count |
0c5ea449 |
168 | FROM cd me |
169 | LEFT JOIN track tracks ON tracks.cd = me.cdid |
170 | WHERE ( tracks.cd IS NOT NULL ) |
171 | GROUP BY me.cdid |
1c1937b7 |
172 | ORDER BY track_count DESC |
0c5ea449 |
173 | LIMIT 2 |
174 | ) me |
175 | LEFT JOIN track tracks ON tracks.cd = me.cdid |
176 | LEFT JOIN liner_notes liner_notes ON liner_notes.liner_id = me.cdid |
177 | WHERE ( tracks.cd IS NOT NULL ) |
1c1937b7 |
178 | ORDER BY track_count DESC, tracks.cd |
0c5ea449 |
179 | )', |
180 | [], |
181 | 'next() query generated expected SQL', |
182 | ); |
183 | |
184 | is ($most_tracks_rs->count, 2, 'Limit works'); |
185 | my $top_cd = $most_tracks_rs->first; |
186 | is ($top_cd->id, 2, 'Correct cd fetched on top'); # 2 because of the slice(1,1) above |
187 | |
188 | my $query_cnt = 0; |
189 | $schema->storage->debugcb ( sub { $query_cnt++ } ); |
a2287768 |
190 | $schema->storage->debug (1); |
0c5ea449 |
191 | |
192 | is ($top_cd->get_column ('track_count'), 4, 'Track count fetched correctly'); |
193 | is ($top_cd->tracks->count, 4, 'Count of prefetched tracks rs still correct'); |
194 | is ($top_cd->tracks->all, 4, 'Number of prefetched track objects still correct'); |
195 | is ( |
196 | $top_cd->liner_notes->notes, |
197 | 'Buy Whiskey!', |
198 | 'Correct liner pre-fetched with top cd', |
199 | ); |
200 | |
201 | is ($query_cnt, 0, 'No queries executed during prefetched data access'); |
202 | $schema->storage->debugcb (undef); |
a2287768 |
203 | $schema->storage->debug ($sdebug); |
0c5ea449 |
204 | } |