8 use DBICTest ':DiffSQL';
10 my $schema = DBICTest->init_schema();
12 my $rs = $schema->resultset("CD");
17 $rs->search ({}, {columns => ['year'], distinct => 1})->count,
18 'At least one year is the same in rs'
21 my $rs_title = $rs->get_column('title');
22 my $rs_year = $rs->get_column('year');
23 my $max_year = $rs->get_column(\'MAX (year)');
25 my @all_titles = $rs_title->all;
26 cmp_ok(scalar @all_titles, '==', 5, "five titles returned");
29 while (my $r = $rs_title->next) {
30 push @nexted_titles, $r;
33 is_deeply (\@all_titles, \@nexted_titles, 'next works');
35 is_deeply( [ sort $rs_year->func('DISTINCT') ], [ 1997, 1998, 1999, 2001 ], "wantarray context okay");
36 ok ($max_year->next == $rs_year->max, q/get_column (\'FUNC') ok/);
38 cmp_ok($rs_year->max, '==', 2001, "max okay for year");
39 is($rs_title->min, 'Caterwaulin\' Blues', "min okay for title");
41 cmp_ok($rs_year->sum, '==', 9996, "three artists returned");
43 my $rso_year = $rs->search({}, { order_by => 'cdid' })->get_column('year');
44 is($rso_year->next, 1999, "reset okay");
46 is($rso_year->first, 1999, "first okay");
49 is($rso_year->single, 1999, "single okay");
50 }, qr/Query returned more than one row/, 'single warned');
53 # test distinct propagation
55 [sort $rs->search ({}, { distinct => 1 })->get_column ('year')->all],
56 [sort $rs_year->func('distinct')],
57 'distinct => 1 is passed through properly',
60 # test illogical distinct
61 my $dist_rs = $rs->search ({}, {
64 order_by => { -desc => [qw( cdid year )] },
73 ORDER BY MAX(cdid) DESC, year DESC
76 'Correct SQL on external-ordered distinct',
80 $dist_rs->count_rs->as_query,
90 'Correct SQL on count of external-orderdd distinct',
94 $dist_rs->count_rs->next,
102 'Correct direct count',
105 # test +select/+as for single column
106 my $psrs = $schema->resultset('CD')->search({},
108 '+select' => \'MAX(year)',
112 lives_ok(sub { $psrs->get_column('last_year')->next }, '+select/+as additional column "last_year" present (scalar)');
113 dies_ok(sub { $psrs->get_column('noSuchColumn')->next }, '+select/+as nonexistent column throws exception');
115 # test +select/+as for overriding a column
116 $psrs = $schema->resultset('CD')->search({},
118 'select' => \"'The Final Countdown'",
122 is($psrs->get_column('title')->next, 'The Final Countdown', '+select/+as overridden column "title"');
125 # test +select/+as for multiple columns
126 $psrs = $schema->resultset('CD')->search({},
128 '+select' => [ \'LENGTH(title) AS title_length', 'title' ],
129 '+as' => [ 'tlength', 'addedtitle' ]
132 lives_ok(sub { $psrs->get_column('tlength')->next }, '+select/+as multiple additional columns, "tlength" column present');
133 lives_ok(sub { $psrs->get_column('addedtitle')->next }, '+select/+as multiple additional columns, "addedtitle" column present');
135 # test that +select/+as specs do not leak
137 $psrs->get_column('year')->as_query,
138 '(SELECT me.year FROM cd me)',
140 'Correct SQL for get_column/as'
144 $psrs->get_column('addedtitle')->as_query,
145 '(SELECT me.title FROM cd me)',
147 'Correct SQL for get_column/+as col'
151 $psrs->get_column('tlength')->as_query,
152 '(SELECT LENGTH(title) AS title_length FROM cd me)',
154 'Correct SQL for get_column/+as func'
157 # test that order_by over a function forces a subquery
160 [ $psrs->search ({}, { order_by => { -desc => 'title_length' } })->get_column ('title')->all ],
162 "Generic Manufactured Singles",
163 "Come Be Depressed With Us",
164 "Caterwaulin' Blues",
168 'Subquery count induced by aliased ordering function',
172 # test for prefetch not leaking
174 my $rs = $schema->resultset("CD")->search({}, { prefetch => 'artist' });
175 my $rsc = $rs->get_column('year');
176 is( $rsc->{_parent_resultset}->{attrs}->{prefetch}, undef, 'prefetch wiped' );
180 is ($schema->resultset('BooksInLibrary')->get_column ('price')->sum, 125, 'Sum of a resultset works correctly');
182 # test sum over search_related
183 my $owner = $schema->resultset('Owners')->find ({ name => 'Newton' });
184 ok ($owner->books->count > 1, 'Owner Newton has multiple books');
185 is ($owner->search_related ('books')->get_column ('price')->sum, 60, 'Correctly calculated price of all owned books');
188 # make sure joined/prefetched get_column of a PK dtrt
190 my $j_rs = $rs->search ({}, { join => 'tracks' })->get_column ('cdid');
193 [ sort map { my $c = $rs->next; ( ($c->id) x $c->tracks->count ) } (1 .. $rs->count) ],
194 'join properly explodes amount of rows from get_column',
198 my $p_rs = $rs->search ({}, { prefetch => 'tracks' })->get_column ('cdid');
201 [ sort $rs->get_column ('cdid')->all ],
202 'prefetch properly collapses amount of rows from get_column',
206 my $pob_rs = $rs->search({}, {
207 select => ['me.title', 'tracks.title'],
208 prefetch => 'tracks',
209 order_by => [{-asc => ['position']}],
210 group_by => ['me.title', 'tracks.title'],
213 $pob_rs->get_column("me.title")->as_query,
214 '(SELECT me.title FROM (SELECT me.title, tracks.title FROM cd me LEFT JOIN track tracks ON tracks.cd = me.cdid GROUP BY me.title, tracks.title ORDER BY position ASC) me)',
216 'Correct SQL for prefetch/order_by/group_by'
219 # test aggregate on a function (create an extra track on one cd)
221 my $tr_rs = $schema->resultset("Track");
222 $tr_rs->create({ cd => 2, title => 'dealbreaker' });
225 $tr_rs->get_column('cd')->max,
227 "Correct: Max cd in Track is 5"
230 my $track_counts_per_cd_via_group_by = $tr_rs->search({}, {
231 columns => [ 'cd', { cnt => { count => 'trackid', -as => 'cnt' } } ],
233 })->get_column('cnt');
235 is ($track_counts_per_cd_via_group_by->max, 4, 'Correct max tracks per cd');
236 is ($track_counts_per_cd_via_group_by->min, 3, 'Correct min tracks per cd');
238 sprintf('%0.1f', $track_counts_per_cd_via_group_by->func('avg') ),
240 'Correct avg tracks per cd'
244 # test exotic scenarious (create a track-less cd)
245 # "How many CDs (not tracks) have been released per year where a given CD has at least one track and the artist isn't evancarroll?"
248 $schema->resultset('CD')->create({ artist => 1, title => 'dealbroker no tracks', year => 2001 });
250 my $yp1 = \[ 'year + ?', 1 ];
252 my $rs = $schema->resultset ('CD')->search (
253 { 'artist.name' => { '!=', 'evancarrol' }, 'tracks.trackid' => { '!=', undef } },
255 order_by => 'me.year',
256 join => [qw(artist tracks)],
259 { cnt => { count => 'me.cdid' } },
260 { year_plus_one => $yp1 },
266 'explicitly grouped' => $rs->search_rs({}, { group_by => [ 'year', $yp1 ] } ),
267 'implicitly grouped' => $rs->search_rs({}, { distinct => 1 }),
270 for my $type (keys %$rstypes) {
271 is ($rstypes->{$type}->count, 4, "correct cd count with $type column");
274 [ $rstypes->{$type}->get_column ('year')->all ],
275 [qw(1997 1998 1999 2001)],
276 "Getting $type column works",
280 # Why do we test this - we want to make sure that the selector *will* actually make
281 # it to the group_by as per the distinct => 1 contract. Before 0.08251 this situation
282 # would silently drop the group_by entirely, likely ending up with nonsensival results
283 # With the current behavior the user will at least get a nice fat exception from the
284 # RDBMS (or maybe the RDBMS will even decide to handle the situation sensibly...)
286 [ cnt => 'COUNT( me.cdid )' ],
287 [ year_plus_one => 'year + ?' => [ {} => 1 ] ],
289 my ($col, $sel_grp_sql, @sel_grp_bind) = @$_;
291 warnings_exist { is_same_sql_bind(
292 $rstypes->{'implicitly grouped'}->get_column($col)->as_query,
297 ON artist.artistid = me.artist
298 LEFT JOIN track tracks
299 ON tracks.cd = me.cdid
300 WHERE artist.name != ? AND tracks.trackid IS NOT NULL
301 GROUP BY $sel_grp_sql
302 ORDER BY MIN(me.year)
306 [ { dbic_colname => 'artist.name', sqlt_datatype => 'varchar', sqlt_size => 100 }
310 'Expected (though nonsensical) SQL generated on rscol-with-distinct-over-function',
312 \QUse of distinct => 1 while selecting anything other than a column \E
313 \Qdeclared on the primary ResultSource is deprecated (you selected '$col')\E
314 /x, 'deprecation warning';
318 local $TODO = 'multiplying join leaks through to the count aggregate... this may never actually work';
320 [ $rstypes->{'explicitly grouped'}->get_column ('cnt')->all ],
322 "Get aggregate over group works",