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Tag: v0.08270
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use strict;
use warnings;
use Test::More;
use Test::Warn;
use Test::Exception;
use lib qw(t/lib);
use DBICTest;
use DBIC::SqlMakerTest;
my $schema = DBICTest->init_schema();
my $rs = $schema->resultset("CD");
cmp_ok (
$rs->count,
'>',
$rs->search ({}, {columns => ['year'], distinct => 1})->count,
'At least one year is the same in rs'
);
my $rs_title = $rs->get_column('title');
my $rs_year = $rs->get_column('year');
my $max_year = $rs->get_column(\'MAX (year)');
my @all_titles = $rs_title->all;
cmp_ok(scalar @all_titles, '==', 5, "five titles returned");
my @nexted_titles;
while (my $r = $rs_title->next) {
push @nexted_titles, $r;
}
is_deeply (\@all_titles, \@nexted_titles, 'next works');
is_deeply( [ sort $rs_year->func('DISTINCT') ], [ 1997, 1998, 1999, 2001 ], "wantarray context okay");
ok ($max_year->next == $rs_year->max, q/get_column (\'FUNC') ok/);
cmp_ok($rs_year->max, '==', 2001, "max okay for year");
is($rs_title->min, 'Caterwaulin\' Blues', "min okay for title");
cmp_ok($rs_year->sum, '==', 9996, "three artists returned");
my $rso_year = $rs->search({}, { order_by => 'cdid' })->get_column('year');
is($rso_year->next, 1999, "reset okay");
is($rso_year->first, 1999, "first okay");
warnings_exist (sub {
is($rso_year->single, 1999, "single okay");
}, qr/Query returned more than one row/, 'single warned');
# test distinct propagation
is_deeply (
[sort $rs->search ({}, { distinct => 1 })->get_column ('year')->all],
[sort $rs_year->func('distinct')],
'distinct => 1 is passed through properly',
);
# test illogical distinct
my $dist_rs = $rs->search ({}, {
columns => ['year'],
distinct => 1,
order_by => { -desc => [qw( cdid year )] },
});
is_same_sql_bind(
$dist_rs->as_query,
'(
SELECT me.year
FROM cd me
GROUP BY me.year
ORDER BY MAX(cdid) DESC, year DESC
)',
[],
'Correct SQL on external-ordered distinct',
);
is_same_sql_bind(
$dist_rs->count_rs->as_query,
'(
SELECT COUNT( * )
FROM (
SELECT me.year
FROM cd me
GROUP BY me.year
) me
)',
[],
'Correct SQL on count of external-orderdd distinct',
);
is (
$dist_rs->count_rs->next,
4,
'Correct rs-count',
);
is (
$dist_rs->count,
4,
'Correct direct count',
);
# test +select/+as for single column
my $psrs = $schema->resultset('CD')->search({},
{
'+select' => \'MAX(year)',
'+as' => 'last_year'
}
);
lives_ok(sub { $psrs->get_column('last_year')->next }, '+select/+as additional column "last_year" present (scalar)');
dies_ok(sub { $psrs->get_column('noSuchColumn')->next }, '+select/+as nonexistent column throws exception');
# test +select/+as for overriding a column
$psrs = $schema->resultset('CD')->search({},
{
'select' => \"'The Final Countdown'",
'as' => 'title'
}
);
is($psrs->get_column('title')->next, 'The Final Countdown', '+select/+as overridden column "title"');
# test +select/+as for multiple columns
$psrs = $schema->resultset('CD')->search({},
{
'+select' => [ \'LENGTH(title) AS title_length', 'title' ],
'+as' => [ 'tlength', 'addedtitle' ]
}
);
lives_ok(sub { $psrs->get_column('tlength')->next }, '+select/+as multiple additional columns, "tlength" column present');
lives_ok(sub { $psrs->get_column('addedtitle')->next }, '+select/+as multiple additional columns, "addedtitle" column present');
# test that +select/+as specs do not leak
is_same_sql_bind (
$psrs->get_column('year')->as_query,
'(SELECT me.year FROM cd me)',
[],
'Correct SQL for get_column/as'
);
is_same_sql_bind (
$psrs->get_column('addedtitle')->as_query,
'(SELECT me.title FROM cd me)',
[],
'Correct SQL for get_column/+as col'
);
is_same_sql_bind (
$psrs->get_column('tlength')->as_query,
'(SELECT LENGTH(title) AS title_length FROM cd me)',
[],
'Correct SQL for get_column/+as func'
);
# test that order_by over a function forces a subquery
lives_ok ( sub {
is_deeply (
[ $psrs->search ({}, { order_by => { -desc => 'title_length' } })->get_column ('title')->all ],
[
"Generic Manufactured Singles",
"Come Be Depressed With Us",
"Caterwaulin' Blues",
"Spoonful of bees",
"Forkful of bees",
],
'Subquery count induced by aliased ordering function',
);
});
# test for prefetch not leaking
{
my $rs = $schema->resultset("CD")->search({}, { prefetch => 'artist' });
my $rsc = $rs->get_column('year');
is( $rsc->{_parent_resultset}->{attrs}->{prefetch}, undef, 'prefetch wiped' );
}
# test sum()
is ($schema->resultset('BooksInLibrary')->get_column ('price')->sum, 125, 'Sum of a resultset works correctly');
# test sum over search_related
my $owner = $schema->resultset('Owners')->find ({ name => 'Newton' });
ok ($owner->books->count > 1, 'Owner Newton has multiple books');
is ($owner->search_related ('books')->get_column ('price')->sum, 60, 'Correctly calculated price of all owned books');
# make sure joined/prefetched get_column of a PK dtrt
$rs->reset;
my $j_rs = $rs->search ({}, { join => 'tracks' })->get_column ('cdid');
is_deeply (
[ sort $j_rs->all ],
[ sort map { my $c = $rs->next; ( ($c->id) x $c->tracks->count ) } (1 .. $rs->count) ],
'join properly explodes amount of rows from get_column',
);
$rs->reset;
my $p_rs = $rs->search ({}, { prefetch => 'tracks' })->get_column ('cdid');
is_deeply (
[ sort $p_rs->all ],
[ sort $rs->get_column ('cdid')->all ],
'prefetch properly collapses amount of rows from get_column',
);
$rs->reset;
my $pob_rs = $rs->search({}, {
select => ['me.title', 'tracks.title'],
prefetch => 'tracks',
order_by => [{-asc => ['position']}],
group_by => ['me.title', 'tracks.title'],
});
is_same_sql_bind (
$pob_rs->get_column("me.title")->as_query,
'(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)',
[],
'Correct SQL for prefetch/order_by/group_by'
);
# test aggregate on a function (create an extra track on one cd)
{
my $tr_rs = $schema->resultset("Track");
$tr_rs->create({ cd => 2, title => 'dealbreaker' });
is(
$tr_rs->get_column('cd')->max,
5,
"Correct: Max cd in Track is 5"
);
my $track_counts_per_cd_via_group_by = $tr_rs->search({}, {
columns => [ 'cd', { cnt => { count => 'trackid', -as => 'cnt' } } ],
group_by => 'cd',
})->get_column('cnt');
is ($track_counts_per_cd_via_group_by->max, 4, 'Correct max tracks per cd');
is ($track_counts_per_cd_via_group_by->min, 3, 'Correct min tracks per cd');
is (
sprintf('%0.1f', $track_counts_per_cd_via_group_by->func('avg') ),
'3.2',
'Correct avg tracks per cd'
);
}
# test exotic scenarious (create a track-less cd)
# "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?"
{
$schema->resultset('CD')->create({ artist => 1, title => 'dealbroker no tracks', year => 2001 });
my $rs = $schema->resultset ('CD')->search (
{ 'artist.name' => { '!=', 'evancarrol' }, 'tracks.trackid' => { '!=', undef } },
{
order_by => 'me.year',
join => [qw(artist tracks)],
columns => [ 'year', { cnt => { count => 'me.cdid' }} ],
},
);
my $rstypes = {
'explicitly grouped' => $rs->search_rs({}, { group_by => 'year' }),
'implicitly grouped' => $rs->search_rs({}, { distinct => 1 }),
};
for my $type (keys %$rstypes) {
is ($rstypes->{$type}->count, 4, "correct cd count with $type column");
is_deeply (
[ $rstypes->{$type}->get_column ('year')->all ],
[qw(1997 1998 1999 2001)],
"Getting $type column works",
);
}
# Why do we test this - we want to make sure that the selector *will* actually make
# it to the group_by as per the distinct => 1 contract. Before 0.08251 this situation
# would silently drop the group_by entirely, likely ending up with nonsensival results
# With the current behavior the user will at least get a nice fat exception from the
# RDBMS (or maybe the RDBMS will even decide to handle the situation sensibly...)
warnings_exist { is_same_sql_bind(
$rstypes->{'implicitly grouped'}->get_column('cnt')->as_query,
'(
SELECT COUNT( me.cdid )
FROM cd me
JOIN artist artist
ON artist.artistid = me.artist
LEFT JOIN track tracks
ON tracks.cd = me.cdid
WHERE artist.name != ? AND tracks.trackid IS NOT NULL
GROUP BY COUNT( me.cdid )
ORDER BY MIN(me.year)
)',
[ [ { dbic_colname => 'artist.name', sqlt_datatype => 'varchar', sqlt_size => 100 }
=> 'evancarrol'
] ],
'Expected (though nonsensical) SQL generated on rscol-with-distinct-over-function',
) } qr/
\QUse of distinct => 1 while selecting anything other than a column \E
\Qdeclared on the primary ResultSource is deprecated\E
/x, 'deprecation warning';
{
local $TODO = 'multiplying join leaks through to the count aggregate... this may never actually work';
is_deeply (
[ $rstypes->{'explicitly grouped'}->get_column ('cnt')->all ],
[qw(1 1 1 2)],
"Get aggregate over group works",
);
}
}
done_testing;
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