[dbsrgits/DBIx-Class.git] / t / 66relationship.t

use strict;
use warnings;  

use Test::More;
use lib qw(t/lib);
use DBICTest;

my $schema = DBICTest->init_schema();

plan tests => 63;

# has_a test
my $cd = $schema->resultset("CD")->find(4);
my ($artist) = ($INC{'DBICTest/HelperRels'}
                  ? $cd->artist
                  : $cd->search_related('artist'));
is($artist->name, 'Random Boy Band', 'has_a search_related ok');

# has_many test with an order_by clause defined
$artist = $schema->resultset("Artist")->find(1);
my @cds = ($INC{'DBICTest/HelperRels'}
             ? $artist->cds
             : $artist->search_related('cds'));
is( $cds[1]->title, 'Spoonful of bees', 'has_many search_related with order_by ok' );

# search_related with additional abstract query
@cds = ($INC{'DBICTest/HelperRels'}
          ? $artist->cds({ title => { like => '%of%' } })
          : $artist->search_related('cds', { title => { like => '%of%' } } )
       );
is( $cds[1]->title, 'Forkful of bees', 'search_related with abstract query ok' );

# creating a related object
if ($INC{'DBICTest/HelperRels.pm'}) {
  $artist->add_to_cds({ title => 'Big Flop', year => 2005 });
} else {
  $artist->create_related( 'cds', {
      title => 'Big Flop',
      year => 2005,
  } );
}

is( ($artist->search_related('cds'))[3]->title, 'Big Flop', 'create_related ok' );

my( $rs_from_list ) = $artist->search_related_rs('cds');
is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'search_related_rs in list context returns rs' );

( $rs_from_list ) = $artist->cds_rs();
is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'relation_rs in list context returns rs' );

# count_related
is( $artist->count_related('cds'), 4, 'count_related ok' );

# set_from_related
my $track = $schema->resultset("Track")->create( {
  trackid => 1,
  cd => 3,
  position => 98,
  title => 'Hidden Track'
} );
$track->set_from_related( cd => $cd );

is($track->disc->cdid, 4, 'set_from_related ok, including alternative accessor' );

$track->set_from_related( cd => undef );

ok( !defined($track->cd), 'set_from_related with undef ok');

TODO: {
    local $TODO = 'accessing $object->rel and set_from_related';
    my $track = $schema->resultset("Track")->new( {} );
    $track->cd;
    $track->set_from_related( cd => $cd ); 
    ok ($track->cd, 'set_from_related ok after using the accessor' );
};

# update_from_related, the same as set_from_related, but it calls update afterwards
$track = $schema->resultset("Track")->create( {
  trackid => 2,
  cd => 3,
  position => 99,
  title => 'Hidden Track 2'
} );
$track->update_from_related( cd => $cd );

my $t_cd = ($schema->resultset("Track")->search( cd => 4, position => 99 ))[0]->cd;

is( $t_cd->cdid, 4, 'update_from_related ok' );

# find_or_create_related with an existing record
$cd = $artist->find_or_create_related( 'cds', { title => 'Big Flop' } );
is( $cd->year, 2005, 'find_or_create_related on existing record ok' );

# find_or_create_related creating a new record
$cd = $artist->find_or_create_related( 'cds', {
  title => 'Greatest Hits',
  year => 2006,
} );
is( $cd->title, 'Greatest Hits', 'find_or_create_related new record ok' );

@cds = $artist->search_related('cds');
is( ($artist->search_related('cds'))[4]->title, 'Greatest Hits', 'find_or_create_related new record search ok' );

$artist->delete_related( cds => { title => 'Greatest Hits' });
cmp_ok( $schema->resultset("CD")->search( title => 'Greatest Hits' ), '==', 0, 'delete_related ok' );

# find_or_new_related with an existing record
$cd = $artist->find_or_new_related( 'cds', { title => 'Big Flop' } );
is( $cd->year, 2005, 'find_or_new_related on existing record ok' );
ok( $cd->in_storage, 'find_or_new_related on existing record: is in_storage' );

# find_or_new_related instantiating a new record
$cd = $artist->find_or_new_related( 'cds', {
  title => 'Greatest Hits 2: Louder Than Ever',
  year => 2007,
} );
is( $cd->title, 'Greatest Hits 2: Louder Than Ever', 'find_or_new_related new record ok' );
ok( ! $cd->in_storage, 'find_or_new_related on a new record: not in_storage' );

# print STDERR Data::Dumper::Dumper($cd->get_columns);
# $cd->result_source->schema->storage->debug(1);
$cd->artist(undef);
my $newartist = $cd->find_or_new_related( 'artist', {
  name => 'Random Boy Band Two',
  artistid => 200,
} );
# $cd->result_source->schema->storage->debug(0);
is($newartist->name, 'Random Boy Band Two', 'find_or_new_related new artist record with id');
is($newartist->id, 200, 'find_or_new_related new artist id set');

SKIP: {
  skip "relationship checking needs fixing", 1;
  # try to add a bogus relationship using the wrong cols
  eval {
      DBICTest::Schema::Artist->add_relationship(
          tracks => 'DBICTest::Schema::Track',
          { 'foreign.cd' => 'self.cdid' }
      );
  };
  like($@, qr/Unknown column/, 'failed when creating a rel with invalid key, ok');
}
  
# another bogus relationship using no join condition
eval {
    DBICTest::Schema::Artist->add_relationship( tracks => 'DBICTest::Track' );
};
like($@, qr/join condition/, 'failed when creating a rel without join condition, ok');

# many_to_many helper tests
$cd = $schema->resultset("CD")->find(1);
my @producers = $cd->producers();
is( $producers[0]->name, 'Matt S Trout', 'many_to_many ok' );
is( $cd->producers_sorted->next->name, 'Bob The Builder',
    'sorted many_to_many ok' );
is( $cd->producers_sorted(producerid => 3)->next->name, 'Fred The Phenotype',
    'sorted many_to_many with search condition ok' );

$cd = $schema->resultset('CD')->find(2);
my $prod_rs = $cd->producers();
my $prod_before_count = $schema->resultset('Producer')->count;
is( $prod_rs->count, 0, "CD doesn't yet have any producers" );
my $prod = $schema->resultset('Producer')->find(1);
$cd->add_to_producers($prod);
is( $prod_rs->count(), 1, 'many_to_many add_to_$rel($obj) count ok' );
is( $prod_rs->first->name, 'Matt S Trout',
    'many_to_many add_to_$rel($obj) ok' );
$cd->remove_from_producers($prod);
is( $schema->resultset('Producer')->find(1)->name, 'Matt S Trout',
    "producer object exists after remove of link" );
is( $prod_rs->count, 0, 'many_to_many remove_from_$rel($obj) ok' );
$cd->add_to_producers({ name => 'Testy McProducer' });
is( $schema->resultset('Producer')->count, $prod_before_count+1,
    'add_to_$rel($hash) inserted a new producer' );
is( $prod_rs->count(), 1, 'many_to_many add_to_$rel($hash) count ok' );
is( $prod_rs->first->name, 'Testy McProducer',
    'many_to_many add_to_$rel($hash) ok' );
$cd->add_to_producers({ name => 'Jack Black' });
is( $prod_rs->count(), 2, 'many_to_many add_to_$rel($hash) count ok' );
$cd->set_producers($schema->resultset('Producer')->all);
is( $cd->producers->count(), $prod_before_count+2, 
    'many_to_many set_$rel(@objs) count ok' );
$cd->set_producers($schema->resultset('Producer')->find(1));
is( $cd->producers->count(), 1, 'many_to_many set_$rel($obj) count ok' );
$cd->set_producers([$schema->resultset('Producer')->all]);
is( $cd->producers->count(), $prod_before_count+2, 
    'many_to_many set_$rel(\@objs) count ok' );
$cd->set_producers([$schema->resultset('Producer')->find(1)]);
is( $cd->producers->count(), 1, 'many_to_many set_$rel([$obj]) count ok' );

eval { $cd->remove_from_producers({ fake => 'hash' }); };
like( $@, qr/needs an object/, 'remove_from_$rel($hash) dies correctly' );

eval { $cd->add_to_producers(); };
like( $@, qr/needs an object or hashref/,
      'add_to_$rel(undef) dies correctly' );

# many_to_many stresstest
my $twokey = $schema->resultset('TwoKeys')->find(1,1);
my $fourkey = $schema->resultset('FourKeys')->find(1,2,3,4);

is( $twokey->fourkeys->count, 0, 'twokey has no fourkeys' );
$twokey->add_to_fourkeys($fourkey, { autopilot => 'engaged' });
my $got_fourkey = $twokey->fourkeys({ sensors => 'online' })->first;
is( $twokey->fourkeys->count, 1, 'twokey has one fourkey' );
is( $got_fourkey->$_, $fourkey->$_,
    'fourkeys row has the correct value for column '.$_ )
  for (qw(foo bar hello goodbye sensors));
$twokey->remove_from_fourkeys($fourkey);
is( $twokey->fourkeys->count, 0, 'twokey has no fourkeys' );
is( $twokey->fourkeys_to_twokeys->count, 0,
    'twokey has no links to fourkey' );

my $undef_artist_cd = $schema->resultset("CD")->new_result({ 'title' => 'badgers', 'year' => 2007 });
is($undef_artist_cd->has_column_loaded('artist'), '', 'FK not loaded');
is($undef_artist_cd->search_related('artist')->count, 3, 'open search on undef FK');

my $def_artist_cd = $schema->resultset("CD")->new_result({ 'title' => 'badgers', 'year' => 2007, artist => undef });
is($def_artist_cd->has_column_loaded('artist'), 1, 'FK loaded');
is($def_artist_cd->search_related('artist')->count, 0, 'closed search on null FK');

# test undirected many-to-many relationship (e.g. "related artists")
my $undir_maps = $schema->resultset("Artist")->find(1)->artist_undirected_maps;
is($undir_maps->count, 1, 'found 1 undirected map for artist 1');

$undir_maps = $schema->resultset("Artist")->find(2)->artist_undirected_maps;
is($undir_maps->count, 1, 'found 1 undirected map for artist 2');

my $mapped_rs = $undir_maps->search_related('mapped_artists');

my @art = $mapped_rs->all;

cmp_ok(@art, '==', 2, "Both artist returned from map");

my $searched = $mapped_rs->search({'mapped_artists.artistid' => {'!=', undef}});

cmp_ok($searched->count, '==', 2, "Both artist returned from map after adding another condition");

# check join through cascaded has_many relationships
$artist = $schema->resultset("Artist")->find(1);
my $trackset = $artist->cds->search_related('tracks');
# LEFT join means we also see the trackless additional album...
cmp_ok($trackset->count, '==', 11, "Correct number of tracks for artist");

# now see about updating eveything that belongs to artist 2 to artist 3
$artist = $schema->resultset("Artist")->find(2);
my $nartist = $schema->resultset("Artist")->find(3);
cmp_ok($artist->cds->count, '==', 1, "Correct orig #cds for artist");
cmp_ok($nartist->cds->count, '==', 1, "Correct orig #cds for artist");
$artist->cds->update({artist => $nartist->id});
cmp_ok($artist->cds->count, '==', 0, "Correct new #cds for artist");
cmp_ok($nartist->cds->count, '==', 2, "Correct new #cds for artist");
Commit	Line	Data
70350518	1	use strict;
	2	use warnings;
	3
4b8dcc58	4	use Test::More;
	5	use lib qw(t/lib);
	6	use DBICTest;
	7
a47e1233	8	my $schema = DBICTest->init_schema();
5efe4c79	9
f77bad73	10	plan tests => 63;
0567538f	11
0567538f	12	# has_a test
f9db5527	13	my $cd = $schema->resultset("CD")->find(4);
07037f89	14	my ($artist) = ($INC{'DBICTest/HelperRels'}
	15	? $cd->artist
	16	: $cd->search_related('artist'));
0567538f	17	is($artist->name, 'Random Boy Band', 'has_a search_related ok');
	18
	19	# has_many test with an order_by clause defined
f9db5527	20	$artist = $schema->resultset("Artist")->find(1);
07037f89	21	my @cds = ($INC{'DBICTest/HelperRels'}
	22	? $artist->cds
	23	: $artist->search_related('cds'));
	24	is( $cds[1]->title, 'Spoonful of bees', 'has_many search_related with order_by ok' );
0567538f	25
0567538f	26	# search_related with additional abstract query
07037f89	27	@cds = ($INC{'DBICTest/HelperRels'}
	28	? $artist->cds({ title => { like => '%of%' } })
	29	: $artist->search_related('cds', { title => { like => '%of%' } } )
	30	);
0567538f	31	is( $cds[1]->title, 'Forkful of bees', 'search_related with abstract query ok' );
	32
	33	# creating a related object
07037f89	34	if ($INC{'DBICTest/HelperRels.pm'}) {
	35	$artist->add_to_cds({ title => 'Big Flop', year => 2005 });
	36	} else {
	37	$artist->create_related( 'cds', {
	38	title => 'Big Flop',
	39	year => 2005,
	40	} );
	41	}
	42
0567538f	43	is( ($artist->search_related('cds'))[3]->title, 'Big Flop', 'create_related ok' );
0567538f	44
5b89a768	45	my( $rs_from_list ) = $artist->search_related_rs('cds');
	46	is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'search_related_rs in list context returns rs' );
	47
	48	( $rs_from_list ) = $artist->cds_rs();
	49	is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'relation_rs in list context returns rs' );
	50
0567538f	51	# count_related
	52	is( $artist->count_related('cds'), 4, 'count_related ok' );
	53
	54	# set_from_related
f9db5527	55	my $track = $schema->resultset("Track")->create( {
0567538f	56	trackid => 1,
	57	cd => 3,
	58	position => 98,
	59	title => 'Hidden Track'
	60	} );
	61	$track->set_from_related( cd => $cd );
	62
70350518	63	is($track->disc->cdid, 4, 'set_from_related ok, including alternative accessor' );
0567538f	64
2c037e6b	65	$track->set_from_related( cd => undef );
	66
	67	ok( !defined($track->cd), 'set_from_related with undef ok');
	68
f77bad73	69	TODO: {
	70	local $TODO = 'accessing $object->rel and set_from_related';
	71	my $track = $schema->resultset("Track")->new( {} );
	72	$track->cd;
	73	$track->set_from_related( cd => $cd );
	74	ok ($track->cd, 'set_from_related ok after using the accessor' );
	75	};
2c037e6b	76
0567538f	77	# update_from_related, the same as set_from_related, but it calls update afterwards
f9db5527	78	$track = $schema->resultset("Track")->create( {
0567538f	79	trackid => 2,
	80	cd => 3,
	81	position => 99,
365d06b7	82	title => 'Hidden Track 2'
0567538f	83	} );
	84	$track->update_from_related( cd => $cd );
	85
f9db5527	86	my $t_cd = ($schema->resultset("Track")->search( cd => 4, position => 99 ))[0]->cd;
0567538f	87
70350518	88	is( $t_cd->cdid, 4, 'update_from_related ok' );
0567538f	89
	90	# find_or_create_related with an existing record
	91	$cd = $artist->find_or_create_related( 'cds', { title => 'Big Flop' } );
	92	is( $cd->year, 2005, 'find_or_create_related on existing record ok' );
	93
	94	# find_or_create_related creating a new record
	95	$cd = $artist->find_or_create_related( 'cds', {
	96	title => 'Greatest Hits',
	97	year => 2006,
	98	} );
	99	is( $cd->title, 'Greatest Hits', 'find_or_create_related new record ok' );
e02b9964	100
0567538f	101	@cds = $artist->search_related('cds');
	102	is( ($artist->search_related('cds'))[4]->title, 'Greatest Hits', 'find_or_create_related new record search ok' );
	103
87772e46	104	$artist->delete_related( cds => { title => 'Greatest Hits' });
f9db5527	105	cmp_ok( $schema->resultset("CD")->search( title => 'Greatest Hits' ), '==', 0, 'delete_related ok' );
0567538f	106
b3e1f1f5	107	# find_or_new_related with an existing record
	108	$cd = $artist->find_or_new_related( 'cds', { title => 'Big Flop' } );
	109	is( $cd->year, 2005, 'find_or_new_related on existing record ok' );
	110	ok( $cd->in_storage, 'find_or_new_related on existing record: is in_storage' );
	111
	112	# find_or_new_related instantiating a new record
	113	$cd = $artist->find_or_new_related( 'cds', {
	114	title => 'Greatest Hits 2: Louder Than Ever',
	115	year => 2007,
	116	} );
	117	is( $cd->title, 'Greatest Hits 2: Louder Than Ever', 'find_or_new_related new record ok' );
	118	ok( ! $cd->in_storage, 'find_or_new_related on a new record: not in_storage' );
	119
e02b9964	120	# print STDERR Data::Dumper::Dumper($cd->get_columns);
	121	# $cd->result_source->schema->storage->debug(1);
	122	$cd->artist(undef);
	123	my $newartist = $cd->find_or_new_related( 'artist', {
	124	name => 'Random Boy Band Two',
	125	artistid => 200,
	126	} );
ac8a5ba4	127	# $cd->result_source->schema->storage->debug(0);
e02b9964	128	is($newartist->name, 'Random Boy Band Two', 'find_or_new_related new artist record with id');
	129	is($newartist->id, 200, 'find_or_new_related new artist id set');
	130
87772e46	131	SKIP: {
	132	skip "relationship checking needs fixing", 1;
	133	# try to add a bogus relationship using the wrong cols
	134	eval {
	135	DBICTest::Schema::Artist->add_relationship(
	136	tracks => 'DBICTest::Schema::Track',
	137	{ 'foreign.cd' => 'self.cdid' }
	138	);
	139	};
	140	like($@, qr/Unknown column/, 'failed when creating a rel with invalid key, ok');
	141	}
	142
0567538f	143	# another bogus relationship using no join condition
0567538f	144	eval {
3712e4f4	145	DBICTest::Schema::Artist->add_relationship( tracks => 'DBICTest::Track' );
0567538f	146	};
	147	like($@, qr/join condition/, 'failed when creating a rel without join condition, ok');
	148
b3f358b5	149	# many_to_many helper tests
f9db5527	150	$cd = $schema->resultset("CD")->find(1);
7411204b	151	my @producers = $cd->producers();
7411204b	152	is( $producers[0]->name, 'Matt S Trout', 'many_to_many ok' );
b3f358b5	153	is( $cd->producers_sorted->next->name, 'Bob The Builder',
	154	'sorted many_to_many ok' );
	155	is( $cd->producers_sorted(producerid => 3)->next->name, 'Fred The Phenotype',
	156	'sorted many_to_many with search condition ok' );
7411204b	157
3a868fb2	158	$cd = $schema->resultset('CD')->find(2);
b3f358b5	159	my $prod_rs = $cd->producers();
	160	my $prod_before_count = $schema->resultset('Producer')->count;
	161	is( $prod_rs->count, 0, "CD doesn't yet have any producers" );
3a868fb2	162	my $prod = $schema->resultset('Producer')->find(1);
3a868fb2	163	$cd->add_to_producers($prod);
3a868fb2	164	is( $prod_rs->count(), 1, 'many_to_many add_to_$rel($obj) count ok' );
b3f358b5	165	is( $prod_rs->first->name, 'Matt S Trout',
b3f358b5	166	'many_to_many add_to_$rel($obj) ok' );
3a868fb2	167	$cd->remove_from_producers($prod);
b3f358b5	168	is( $schema->resultset('Producer')->find(1)->name, 'Matt S Trout',
	169	"producer object exists after remove of link" );
	170	is( $prod_rs->count, 0, 'many_to_many remove_from_$rel($obj) ok' );
303cf522	171	$cd->add_to_producers({ name => 'Testy McProducer' });
b3f358b5	172	is( $schema->resultset('Producer')->count, $prod_before_count+1,
b3f358b5	173	'add_to_$rel($hash) inserted a new producer' );
303cf522	174	is( $prod_rs->count(), 1, 'many_to_many add_to_$rel($hash) count ok' );
b3f358b5	175	is( $prod_rs->first->name, 'Testy McProducer',
	176	'many_to_many add_to_$rel($hash) ok' );
	177	$cd->add_to_producers({ name => 'Jack Black' });
	178	is( $prod_rs->count(), 2, 'many_to_many add_to_$rel($hash) count ok' );
	179	$cd->set_producers($schema->resultset('Producer')->all);
	180	is( $cd->producers->count(), $prod_before_count+2,
	181	'many_to_many set_$rel(@objs) count ok' );
	182	$cd->set_producers($schema->resultset('Producer')->find(1));
	183	is( $cd->producers->count(), 1, 'many_to_many set_$rel($obj) count ok' );
21c45f7b	184	$cd->set_producers([$schema->resultset('Producer')->all]);
	185	is( $cd->producers->count(), $prod_before_count+2,
	186	'many_to_many set_$rel(\@objs) count ok' );
	187	$cd->set_producers([$schema->resultset('Producer')->find(1)]);
	188	is( $cd->producers->count(), 1, 'many_to_many set_$rel([$obj]) count ok' );
303cf522	189
	190	eval { $cd->remove_from_producers({ fake => 'hash' }); };
	191	like( $@, qr/needs an object/, 'remove_from_$rel($hash) dies correctly' );
	192
	193	eval { $cd->add_to_producers(); };
b3f358b5	194	like( $@, qr/needs an object or hashref/,
b3f358b5	195	'add_to_$rel(undef) dies correctly' );
303cf522	196
3bd6e3e0	197	# many_to_many stresstest
	198	my $twokey = $schema->resultset('TwoKeys')->find(1,1);
	199	my $fourkey = $schema->resultset('FourKeys')->find(1,2,3,4);
	200
	201	is( $twokey->fourkeys->count, 0, 'twokey has no fourkeys' );
	202	$twokey->add_to_fourkeys($fourkey, { autopilot => 'engaged' });
	203	my $got_fourkey = $twokey->fourkeys({ sensors => 'online' })->first;
	204	is( $twokey->fourkeys->count, 1, 'twokey has one fourkey' );
	205	is( $got_fourkey->$_, $fourkey->$_,
	206	'fourkeys row has the correct value for column '.$_ )
	207	for (qw(foo bar hello goodbye sensors));
	208	$twokey->remove_from_fourkeys($fourkey);
	209	is( $twokey->fourkeys->count, 0, 'twokey has no fourkeys' );
b3f358b5	210	is( $twokey->fourkeys_to_twokeys->count, 0,
	211	'twokey has no links to fourkey' );
	212
ac8a5ba4	213	my $undef_artist_cd = $schema->resultset("CD")->new_result({ 'title' => 'badgers', 'year' => 2007 });
	214	is($undef_artist_cd->has_column_loaded('artist'), '', 'FK not loaded');
	215	is($undef_artist_cd->search_related('artist')->count, 3, 'open search on undef FK');
	216
	217	my $def_artist_cd = $schema->resultset("CD")->new_result({ 'title' => 'badgers', 'year' => 2007, artist => undef });
	218	is($def_artist_cd->has_column_loaded('artist'), 1, 'FK loaded');
	219	is($def_artist_cd->search_related('artist')->count, 0, 'closed search on null FK');
3a868fb2	220
5efe4c79	221	# test undirected many-to-many relationship (e.g. "related artists")
f9db5527	222	my $undir_maps = $schema->resultset("Artist")->find(1)->artist_undirected_maps;
5efe4c79	223	is($undir_maps->count, 1, 'found 1 undirected map for artist 1');
5efe4c79	224
f9db5527	225	$undir_maps = $schema->resultset("Artist")->find(2)->artist_undirected_maps;
5efe4c79	226	is($undir_maps->count, 1, 'found 1 undirected map for artist 2');
5efe4c79	227
ad3d2d7c	228	my $mapped_rs = $undir_maps->search_related('mapped_artists');
	229
	230	my @art = $mapped_rs->all;
5efe4c79	231
	232	cmp_ok(@art, '==', 2, "Both artist returned from map");
	233
ad3d2d7c	234	my $searched = $mapped_rs->search({'mapped_artists.artistid' => {'!=', undef}});
	235
	236	cmp_ok($searched->count, '==', 2, "Both artist returned from map after adding another condition");
	237
b8d4bd90	238	# check join through cascaded has_many relationships
	239	$artist = $schema->resultset("Artist")->find(1);
	240	my $trackset = $artist->cds->search_related('tracks');
	241	# LEFT join means we also see the trackless additional album...
	242	cmp_ok($trackset->count, '==', 11, "Correct number of tracks for artist");
ad3d2d7c	243
0f57d214	244	# now see about updating eveything that belongs to artist 2 to artist 3
	245	$artist = $schema->resultset("Artist")->find(2);
	246	my $nartist = $schema->resultset("Artist")->find(3);
	247	cmp_ok($artist->cds->count, '==', 1, "Correct orig #cds for artist");
	248	cmp_ok($nartist->cds->count, '==', 1, "Correct orig #cds for artist");
	249	$artist->cds->update({artist => $nartist->id});
	250	cmp_ok($artist->cds->count, '==', 0, "Correct new #cds for artist");
	251	cmp_ok($nartist->cds->count, '==', 2, "Correct new #cds for artist");
	252