Merge 'trunk' into 'DBIx-Class-current'
[dbsrgits/DBIx-Class-Historic.git] / t / run / 16joins.tl
CommitLineData
0567538f 1sub run_tests {
1edaf6fe 2my $schema = shift;
0567538f 3
4use IO::File;
5
6BEGIN {
7 eval "use DBD::SQLite";
8 plan $@
9 ? ( skip_all => 'needs DBD::SQLite for testing' )
0823196c 10 : ( tests => 44 );
0567538f 11}
12
58ff4acf 13# figure out if we've got a version of sqlite that is older than 3.2.6, in
14# which case COUNT(DISTINCT()) doesn't work
15my $is_broken_sqlite = 0;
16my ($sqlite_major_ver,$sqlite_minor_ver,$sqlite_patch_ver) =
17 split /\./, $schema->storage->dbh->get_info(18);
18if( $schema->storage->dbh->get_info(17) eq 'SQLite' &&
19 ( ($sqlite_major_ver < 3) ||
20 ($sqlite_major_ver == 3 && $sqlite_minor_ver < 2) ||
21 ($sqlite_major_ver == 3 && $sqlite_minor_ver == 2 && $sqlite_patch_ver < 6) ) ) {
22 $is_broken_sqlite = 1;
23}
485f6e10 24
0567538f 25# test the abstract join => SQL generator
26my $sa = new DBIC::SQL::Abstract;
27
28my @j = (
29 { child => 'person' },
30 [ { father => 'person' }, { 'father.person_id' => 'child.father_id' }, ],
31 [ { mother => 'person' }, { 'mother.person_id' => 'child.mother_id' } ],
32);
33my $match = 'person child JOIN person father ON ( father.person_id = '
34 . 'child.father_id ) JOIN person mother ON ( mother.person_id '
35 . '= child.mother_id )'
36 ;
37is( $sa->_recurse_from(@j), $match, 'join 1 ok' );
38
39my @j2 = (
40 { mother => 'person' },
41 [ [ { child => 'person' },
42 [ { father => 'person' },
43 { 'father.person_id' => 'child.father_id' }
44 ]
45 ],
46 { 'mother.person_id' => 'child.mother_id' }
47 ],
48);
49$match = 'person mother JOIN (person child JOIN person father ON ('
50 . ' father.person_id = child.father_id )) ON ( mother.person_id = '
51 . 'child.mother_id )'
52 ;
53is( $sa->_recurse_from(@j2), $match, 'join 2 ok' );
54
55my @j3 = (
56 { child => 'person' },
57 [ { father => 'person', -join_type => 'inner' }, { 'father.person_id' => 'child.father_id' }, ],
58 [ { mother => 'person', -join_type => 'inner' }, { 'mother.person_id' => 'child.mother_id' } ],
59);
60$match = 'person child INNER JOIN person father ON ( father.person_id = '
61 . 'child.father_id ) INNER JOIN person mother ON ( mother.person_id '
62 . '= child.mother_id )'
63 ;
64
65is( $sa->_recurse_from(@j3), $match, 'join 3 (inner join) ok');
66
f9db5527 67my $rs = $schema->resultset("CD")->search(
0567538f 68 { 'year' => 2001, 'artist.name' => 'Caterwauler McCrae' },
69 { from => [ { 'me' => 'cd' },
70 [
71 { artist => 'artist' },
72 { 'me.artist' => 'artist.artistid' }
73 ] ] }
74 );
75
ebaefbc2 76cmp_ok( $rs + 0, '==', 1, "Single record in resultset");
0567538f 77
78is($rs->first->title, 'Forkful of bees', 'Correct record returned');
79
f9db5527 80$rs = $schema->resultset("CD")->search(
0567538f 81 { 'year' => 2001, 'artist.name' => 'Caterwauler McCrae' },
82 { join => 'artist' });
83
ebaefbc2 84cmp_ok( $rs + 0, '==', 1, "Single record in resultset");
0567538f 85
86is($rs->first->title, 'Forkful of bees', 'Correct record returned');
87
f9db5527 88$rs = $schema->resultset("CD")->search(
0567538f 89 { 'artist.name' => 'We Are Goth',
90 'liner_notes.notes' => 'Kill Yourself!' },
91 { join => [ qw/artist liner_notes/ ] });
92
ebaefbc2 93cmp_ok( $rs + 0, '==', 1, "Single record in resultset");
0567538f 94
95is($rs->first->title, 'Come Be Depressed With Us', 'Correct record returned');
96
8fe164b9 97# when using join attribute, make sure slice()ing all objects has same count as all()
f9db5527 98$rs = $schema->resultset("CD")->search(
8fe164b9 99 { 'artist' => 1 },
100 { join => [qw/artist/], order_by => 'artist.name' }
101);
102cmp_ok( scalar $rs->all, '==', scalar $rs->slice(0, $rs->count - 1), 'slice() with join has same count as all()' );
103
0823196c 104eval { $rs->search(undef, { rows => 0, offset => 3 })->all; };
105
106ok($@, "rows => 0 errors: $@");
107
f9db5527 108$rs = $schema->resultset("Artist")->search(
0567538f 109 { 'liner_notes.notes' => 'Kill Yourself!' },
110 { join => { 'cds' => 'liner_notes' } });
111
112cmp_ok( $rs->count, '==', 1, "Single record in resultset");
113
114is($rs->first->name, 'We Are Goth', 'Correct record returned');
115
f9db5527 116$rs = $schema->resultset("CD")->search(
0567538f 117 { 'artist.name' => 'Caterwauler McCrae' },
118 { prefetch => [ qw/artist liner_notes/ ],
119 order_by => 'me.cdid' });
120
ebaefbc2 121cmp_ok($rs + 0, '==', 3, 'Correct number of records returned');
0567538f 122
d52170d4 123my $queries = 0;
124$schema->storage->debugcb(sub { $queries++ });
125
126$queries = 0;
127$schema->storage->debug(1);
0567538f 128
129my @cd = $rs->all;
130
131is($cd[0]->title, 'Spoonful of bees', 'First record returned ok');
132
7cd300ea 133ok(!defined $cd[0]->liner_notes, 'No prefetch for NULL LEFT join');
0567538f 134
135is($cd[1]->{_relationship_data}{liner_notes}->notes, 'Buy Whiskey!', 'Prefetch for present LEFT JOIN');
136
dd417d06 137is(ref $cd[1]->liner_notes, 'DBICTest::LinerNotes', 'Prefetch returns correct class');
138
0567538f 139is($cd[2]->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'Prefetch on parent object ok');
140
d52170d4 141is($queries, 1, 'prefetch ran only 1 select statement');
142
143$schema->storage->debug(0);
0567538f 144
9b465d00 145# test for partial prefetch via columns attr
d20bb28e 146my $cd = $schema->resultset('CD')->find(1,
147 {
9b465d00 148 columns => [qw/title artist.name/],
0e35aa05 149 join => { 'artist' => {} }
d20bb28e 150 }
151);
152ok(eval { $cd->artist->name eq 'Caterwauler McCrae' }, 'single related column prefetched');
153
b3e8ac9b 154# start test for nested prefetch SELECT count
d52170d4 155$queries = 0;
156$schema->storage->debug(1);
b3e8ac9b 157
158$rs = $schema->resultset('Tag')->search(
159 {},
160 {
161 prefetch => { cd => 'artist' }
162 }
163);
164
165my $tag = $rs->first;
166
167is( $tag->cd->title, 'Spoonful of bees', 'step 1 ok for nested prefetch' );
168
169is( $tag->cd->artist->name, 'Caterwauler McCrae', 'step 2 ok for nested prefetch');
170
171# count the SELECTs
d52170d4 172#$selects++ if /SELECT(?!.*WHERE 1=0.*)/;
173is($queries, 1, 'nested prefetch ran exactly 1 select statement (excluding column_info)');
b3e8ac9b 174
d52170d4 175$queries = 0;
c5b7d799 176
d20bb28e 177$cd = $schema->resultset('CD')->find(1, { prefetch => 'artist' });
c5b7d799 178
179is($cd->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'artist prefetched correctly on find');
180
d52170d4 181is($queries, 1, 'find with prefetch ran exactly 1 select statement (excluding column_info)');
182
183$schema->storage->debug(0);
c5b7d799 184
b3e8ac9b 185$rs = $schema->resultset('Tag')->search(
186 {},
187 {
188 join => { cd => 'artist' },
189 prefetch => { cd => 'artist' }
190 }
191);
192
193cmp_ok( $rs->count, '>=', 0, 'nested prefetch does not duplicate joins' );
194
f9db5527 195my ($artist) = $schema->resultset("Artist")->search({ 'cds.year' => 2001 },
0567538f 196 { order_by => 'artistid DESC', join => 'cds' });
197
198is($artist->name, 'Random Boy Band', "Join search by object ok");
199
f9db5527 200my @cds = $schema->resultset("CD")->search({ 'liner_notes.notes' => 'Buy Merch!' },
0567538f 201 { join => 'liner_notes' });
202
203cmp_ok(scalar @cds, '==', 1, "Single CD retrieved via might_have");
204
205is($cds[0]->title, "Generic Manufactured Singles", "Correct CD retrieved");
206
f9db5527 207my @artists = $schema->resultset("Artist")->search({ 'tags.tag' => 'Shiny' },
0567538f 208 { join => { 'cds' => 'tags' } });
209
210cmp_ok( @artists, '==', 2, "two-join search ok" );
211
15c382be 212$rs = $schema->resultset("CD")->search(
213 {},
214 { group_by => [qw/ title me.cdid /] }
215);
216
485f6e10 217SKIP: {
218 skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1
219 if $is_broken_sqlite;
220 cmp_ok( $rs->count, '==', 5, "count() ok after group_by on main pk" );
221}
15c382be 222
223cmp_ok( scalar $rs->all, '==', 5, "all() returns same count as count() after group_by on main pk" );
224
225$rs = $schema->resultset("CD")->search(
226 {},
227 { join => [qw/ artist /], group_by => [qw/ artist.name /] }
228);
229
485f6e10 230SKIP: {
231 skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1
232 if $is_broken_sqlite;
233 cmp_ok( $rs->count, '==', 3, "count() ok after group_by on related column" );
234}
15c382be 235
8839560b 236$rs = $schema->resultset("Artist")->search(
6991aba3 237 {},
01c73d7b 238 { join => [qw/ cds /], group_by => [qw/ me.name /], having =>{ 'MAX(cds.cdid)'=> \'< 5' } }
6991aba3 239);
240
8839560b 241cmp_ok( $rs->all, '==', 2, "results ok after group_by on related column with a having" );
6991aba3 242
01c73d7b 243$rs = $rs->search( undef, { having =>{ 'count(*)'=> \'> 2' }});
6991aba3 244
8839560b 245cmp_ok( $rs->all, '==', 1, "count() ok after group_by on related column with a having" );
489709af 246
247$rs = $schema->resultset("Artist")->search(
248 { 'cds.title' => 'Spoonful of bees',
249 'cds_2.title' => 'Forkful of bees' },
250 { join => [ 'cds', 'cds' ] });
251
485f6e10 252SKIP: {
253 skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1
254 if $is_broken_sqlite;
255 cmp_ok($rs->count, '==', 1, "single artist returned from multi-join");
256}
257
489709af 258is($rs->next->name, 'Caterwauler McCrae', "Correct artist returned");
259
d52170d4 260$queries = 0;
887ce227 261$schema->storage->debug(1);
262
263my $tree_like =
264 $schema->resultset('TreeLike')->find(4,
265 { join => { parent => { parent => 'parent' } },
266 prefetch => { parent => { parent => 'parent' } } });
267
268is($tree_like->name, 'quux', 'Bottom of tree ok');
269$tree_like = $tree_like->parent;
270is($tree_like->name, 'baz', 'First level up ok');
271$tree_like = $tree_like->parent;
272is($tree_like->name, 'bar', 'Second level up ok');
273$tree_like = $tree_like->parent;
274is($tree_like->name, 'foo', 'Third level up ok');
275
276$schema->storage->debug(0);
277
278cmp_ok($queries, '==', 1, 'Only one query run');
279
0823196c 280# has_many resulting in an additional select if no records available despite prefetch
281my $track = $schema->resultset("Artist")->create( {
282 artistid => 4,
283 name => 'Artist without CDs',
284} );
285
286$queries = 0;
287$schema->storage->debug(1);
288
289my $artist_without_cds = $schema->resultset("Artist")->find(4, {
290 join => [qw/ cds /],
291 prefetch => [qw/ cds /],
292});
293my @no_cds = $artist_without_cds->cds;
294
295is($queries, 1, 'prefetch ran only 1 sql statement');
296
297$schema->storage->debug(0);
298
489709af 299} # end run_tests
0567538f 300
3011;