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|
use strict;
use warnings;
use Test::More;
use lib qw(t/lib);
use DBICTest ':DiffSQL';
my $schema = DBICTest::Schema->connect (DBICTest->_database, { quote_char => '`' });
# cheat
require DBIx::Class::Storage::DBI::mysql;
*DBIx::Class::Storage::DBI::mysql::_get_server_version = sub { 5 };
bless ( $schema->storage, 'DBIx::Class::Storage::DBI::mysql' );
# check that double-subqueries are properly wrapped
{
# the expected SQL may seem wastefully nonsensical - this is due to
# CD's tablename being \'cd', which triggers the "this can be anything"
# mode, and forces a subquery. This in turn forces *another* subquery
# because mysql is being mysql
# Also we know it will fail - never deployed. All we care about is the
# SQL to compare, hence the eval
$schema->is_executed_sql_bind( sub {
eval { $schema->resultset ('CD')->update({ genreid => undef }) }
},[[
'UPDATE cd SET `genreid` = ? WHERE `cdid` IN ( SELECT * FROM ( SELECT `me`.`cdid` FROM cd `me` ) `_forced_double_subquery` )',
[ { dbic_colname => "genreid", sqlt_datatype => "integer" } => undef ],
]], 'Correct update-SQL with double-wrapped subquery' );
# same comment as above
$schema->is_executed_sql_bind( sub {
eval { $schema->resultset ('CD')->delete }
}, [[
'DELETE FROM cd WHERE `cdid` IN ( SELECT * FROM ( SELECT `me`.`cdid` FROM cd `me` ) `_forced_double_subquery` )',
]], 'Correct delete-SQL with double-wrapped subquery' );
# and a couple of really contrived examples (we test them live in t/71mysql.t)
my $rs = $schema->resultset('Artist')->search({ name => { -like => 'baby_%' } });
my ($count_sql, @count_bind) = @${$rs->count_rs->as_query};
$schema->is_executed_sql_bind( sub {
eval {
$schema->resultset('Artist')->search(
{ artistid => {
-in => $rs->get_column('artistid')
->as_query
} },
)->update({ name => \[ "CONCAT( `name`, '_bell_out_of_', $count_sql )", @count_bind ] });
}
}, [[
q(
UPDATE `artist`
SET `name` = CONCAT(`name`, '_bell_out_of_', (
SELECT *
FROM (
SELECT COUNT( * )
FROM `artist` `me`
WHERE `name` LIKE ?
) `_forced_double_subquery`
))
WHERE
`artistid` IN (
SELECT *
FROM (
SELECT `me`.`artistid`
FROM `artist` `me`
WHERE `name` LIKE ?
) `_forced_double_subquery` )
),
( [ { dbic_colname => "name", sqlt_datatype => "varchar", sqlt_size => 100 }
=> 'baby_%' ]
) x 2
]]);
$schema->is_executed_sql_bind( sub {
eval {
$schema->resultset('CD')->search_related('artist',
{ 'artist.name' => { -like => 'baby_with_%' } }
)->delete
}
}, [[
q(
DELETE FROM `artist`
WHERE `artistid` IN (
SELECT *
FROM (
SELECT `artist`.`artistid`
FROM cd `me`
JOIN `artist` `artist`
ON `artist`.`artistid` = `me`.`artist`
WHERE `artist`.`name` LIKE ?
) `_forced_double_subquery`
)
),
[ { dbic_colname => "artist.name", sqlt_datatype => "varchar", sqlt_size => 100 }
=> 'baby_with_%' ],
]] );
}
# Test support for straight joins
{
my $cdsrc = $schema->source('CD');
my $artrel_info = $cdsrc->relationship_info ('artist');
$cdsrc->add_relationship(
'straight_artist',
$artrel_info->{class},
$artrel_info->{cond},
{ %{$artrel_info->{attrs}}, join_type => 'straight' },
);
is_same_sql_bind (
$cdsrc->resultset->search({}, { prefetch => 'straight_artist' })->as_query,
'(
SELECT `me`.`cdid`, `me`.`artist`, `me`.`title`, `me`.`year`, `me`.`genreid`, `me`.`single_track`,
`straight_artist`.`artistid`, `straight_artist`.`name`, `straight_artist`.`rank`, `straight_artist`.`charfield`
FROM cd `me`
STRAIGHT_JOIN `artist` `straight_artist` ON `straight_artist`.`artistid` = `me`.`artist`
)',
[],
'straight joins correctly supported for mysql'
);
}
# Test support for inner joins on mysql v3
for (
[ 3 => 'INNER JOIN' ],
[ 4 => 'JOIN' ],
) {
my ($ver, $join_op) = @$_;
# we do not care at this point if data is available, just do a reconnect cycle
# to clear the server version cache and then get a new maker
{
$schema->storage->disconnect;
$schema->storage->_sql_maker(undef);
no warnings 'redefine';
local *DBIx::Class::Storage::DBI::mysql::_get_server_version = sub { $ver };
$schema->storage->ensure_connected;
$schema->storage->sql_maker;
}
is_same_sql_bind (
$schema->resultset('CD')->search ({}, { prefetch => 'artist' })->as_query,
"(
SELECT `me`.`cdid`, `me`.`artist`, `me`.`title`, `me`.`year`, `me`.`genreid`, `me`.`single_track`,
`artist`.`artistid`, `artist`.`name`, `artist`.`rank`, `artist`.`charfield`
FROM cd `me`
$join_op `artist` `artist` ON `artist`.`artistid` = `me`.`artist`
)",
[],
"default join type works for version $ver",
);
}
done_testing;
|
