[dbsrgits/DBIx-Class.git] / t / 73oracle_hq.t

use strict;
use warnings;

use Test::Exception;
use Test::More;

use lib qw(t/lib);
use DBIC::SqlMakerTest;

$ENV{NLS_SORT} = "BINARY";
$ENV{NLS_COMP} = "BINARY";
$ENV{NLS_LANG} = "AMERICAN";

plan skip_all => 'Test needs ' . DBIx::Class::Optional::Dependencies->req_missing_for ('test_rdbms_oracle')
  unless DBIx::Class::Optional::Dependencies->req_ok_for ('test_rdbms_oracle');

my ($dsn,  $user,  $pass)  = @ENV{map { "DBICTEST_ORA_${_}" }  qw/DSN USER PASS/};

plan skip_all => 'Set $ENV{DBICTEST_ORA_DSN}, _USER and _PASS to run this test.'
 unless ($dsn && $user && $pass);

use DBICTest::Schema::Artist;
BEGIN {
  DBICTest::Schema::Artist->add_column('parentid');

  DBICTest::Schema::Artist->has_many(
    children => 'DBICTest::Schema::Artist',
    { 'foreign.parentid' => 'self.artistid' }
  );

  DBICTest::Schema::Artist->belongs_to(
    parent => 'DBICTest::Schema::Artist',
    { 'foreign.artistid' => 'self.parentid' }
  );
}

use DBICTest::Schema;

my $schema = DBICTest::Schema->connect($dsn, $user, $pass);

note "Oracle Version: " . $schema->storage->_server_info->{dbms_version};

my $dbh = $schema->storage->dbh;
do_creates($dbh);

### test hierarchical queries
{
  $schema->resultset('Artist')->create ({
    name => 'root',
    rank => 1,
    cds => [],
    children => [
      {
        name => 'child1',
        rank => 2,
        children => [
          {
            name => 'grandchild',
            rank => 3,
            cds => [
              {
                title => "grandchilds's cd" ,
                year => '2008',
                tracks => [
                  {
                    position => 1,
                    title => 'Track 1 grandchild',
                  }
                ],
              }
            ],
            children => [
              {
                name => 'greatgrandchild',
                rank => 3,
              }
            ],
          }
        ],
      },
      {
        name => 'child2',
        rank => 3,
      },
    ],
  });

  $schema->resultset('Artist')->create({
    name => 'cycle-root',
    children => [
      {
        name => 'cycle-child1',
        children => [ { name => 'cycle-grandchild' } ],
      },
      {
        name => 'cycle-child2'
      },
    ],
  });

  $schema->resultset('Artist')->find({ name => 'cycle-root' })
    ->update({ parentid => { -ident => 'artistid' } });

  # select the whole tree
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
          FROM artist me
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid 
      )',
      [ [ name => 'root'] ],
    );
    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/root child1 grandchild greatgrandchild child2/ ],
      'got artist tree',
    );

    is_same_sql_bind (
      $rs->count_rs->as_query,
      '(
        SELECT COUNT( * )
          FROM artist me
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid 
      )',
      [ [ name => 'root'] ],
    );

    is( $rs->count, 5, 'Connect By count ok' );
  }

  # use order siblings by statement
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
    skip q{Oracle8i doesn't support ORDER SIBLINGS BY}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident =>  'artistid' } } },
      order_siblings_by => { -desc => 'name' },
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
          FROM artist me
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid 
        ORDER SIBLINGS BY name DESC
      )',
      [ [ name => 'root'] ],
    );

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/root child2 child1 grandchild greatgrandchild/ ],
      'Order Siblings By ok',
    );
  }

  # get the root node
  {
    my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
          FROM artist me
        WHERE ( parentid IS NULL )
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid 
      )',
      [ [ name => 'root'] ],
    );

    is_deeply(
      [ $rs->get_column('name')->all ],
      [ 'root' ],
      'found root node',
    );
  }

  # combine a connect by with a join
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
    skip q{Oracle8i doesn't support connect by with join}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search(
      {'cds.title' => { -like => '%cd'} },
      {
        join => 'cds',
        start_with => { 'me.name' => 'root' },
        connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      }
    );

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
          FROM artist me
          LEFT JOIN cd cds ON cds.artist = me.artistid
        WHERE ( cds.title LIKE ? )
        START WITH me.name = ?
        CONNECT BY parentid = PRIOR artistid 
      )',
      [ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
    );

    is_deeply(
      [ $rs->get_column('name')->all ],
      [ 'grandchild' ],
      'Connect By with a join result name ok'
    );

    is_same_sql_bind (
      $rs->count_rs->as_query,
      '(
        SELECT COUNT( * )
          FROM artist me
          LEFT JOIN cd cds ON cds.artist = me.artistid
        WHERE ( cds.title LIKE ? )
        START WITH me.name = ?
        CONNECT BY parentid = PRIOR artistid 
      )',
      [ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
    );

    is( $rs->count, 1, 'Connect By with a join; count ok' );
  }

  # combine a connect by with order_by
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      order_by => { -asc => [ 'LEVEL', 'name' ] },
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
          FROM artist me
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid 
        ORDER BY LEVEL ASC, name ASC
      )',
      [ [ name => 'root' ] ],
    );


    # Don't use "$rs->get_column ('name')->all" they build a query arround the $rs.
    #   If $rs has a order by, the order by is in the subquery and this doesn't work with Oracle 8i.
    # TODO: write extra test and fix order by handling on Oracle 8i
    is_deeply (
      [ map { $_->[1] } $rs->cursor->all ],
      [ qw/root child1 child2 grandchild greatgrandchild/ ],
      'Connect By with a order_by - result name ok (without get_column)'
    );

    SKIP: {
      skip q{Connect By with a order_by - result name ok (with get_column), Oracle8i doesn't support order by in a subquery},1
        if $schema->storage->_server_info->{normalized_dbms_version} < 9;
      is_deeply (
        [  $rs->get_column ('name')->all ],
        [ qw/root child1 child2 grandchild greatgrandchild/ ],
        'Connect By with a order_by - result name ok (with get_column)'
      );
    }
  }


  # limit a connect by
  SKIP: {
    skip q{Oracle8i doesn't support order by in a subquery}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      order_by => { -asc => 'name' },
      rows => 2,
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT artistid, name, rank, charfield, parentid
          FROM (
            SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
              FROM artist me
            START WITH name = ?
            CONNECT BY parentid = PRIOR artistid
            ORDER BY name ASC
          ) me
        WHERE ROWNUM <= 2
      )',
      [ [ name => 'root' ] ],
    );

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [qw/child1 child2/],
      'LIMIT a Connect By query - correct names'
    );

    is_same_sql_bind (
      $rs->count_rs->as_query,
      '(
        SELECT COUNT( * )
          FROM (
            SELECT artistid
              FROM (
                SELECT me.artistid
                  FROM artist me
                START WITH name = ?
                CONNECT BY parentid = PRIOR artistid
              ) me
            WHERE ROWNUM <= 2
          ) me
      )',
      [ [ name => 'root' ] ],
    );

    is( $rs->count, 2, 'Connect By; LIMIT count ok' );
  }

  # combine a connect_by with group_by and having
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      select => { count => 'rank', -as => 'cnt' },
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      group_by => ['rank'],
      having => \[ 'count(rank) < ?', [ cnt => 2 ] ],
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT COUNT(rank) AS cnt
          FROM artist me
        START WITH name = ?
        CONNECT BY parentid = PRIOR artistid
        GROUP BY rank HAVING count(rank) < ?
      )',
      [ [ name => 'root' ], [ cnt => 2 ] ],
    );

    is_deeply (
      [ $rs->get_column ('cnt')->all ],
      [1, 1],
      'Group By a Connect By query - correct values'
    );
  }

  # select the whole cycle tree without nocylce
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'cycle-root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    # ORA-01436:  CONNECT BY loop in user data
    throws_ok { $rs->get_column ('name')->all } qr/ORA-01436/,
      "connect by initify loop detection without nocycle";
  }

  # select the whole cycle tree with nocylce
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/expressi.htm#1023748
    skip q{Oracle8i doesn't support connect by nocycle}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'cycle-root' },
      '+select'  => \ 'CONNECT_BY_ISCYCLE',
      '+as'      => [ 'connector' ],
      connect_by_nocycle => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_same_sql_bind (
      $rs->as_query,
      '(
        SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid, CONNECT_BY_ISCYCLE
          FROM artist me
        START WITH name = ?
        CONNECT BY NOCYCLE parentid = PRIOR artistid 
      )',
      [ [ name => 'cycle-root'] ],
    );
    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
      'got artist tree with nocycle (name)',
    );
    is_deeply (
      [ $rs->get_column ('connector')->all ],
      [ qw/1 0 0 0/ ],
      'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
    );

    is_same_sql_bind (
      $rs->count_rs->as_query,
      '(
        SELECT COUNT( * )
          FROM artist me
        START WITH name = ?
        CONNECT BY NOCYCLE parentid = PRIOR artistid 
      )',
      [ [ name => 'cycle-root'] ],
    );

    is( $rs->count, 4, 'Connect By Nocycle count ok' );
  }
}

done_testing;

sub do_creates {
  my $dbh = shift;

  eval {
    $dbh->do("DROP SEQUENCE artist_autoinc_seq");
    $dbh->do("DROP SEQUENCE artist_pk_seq");
    $dbh->do("DROP SEQUENCE cd_seq");
    $dbh->do("DROP SEQUENCE track_seq");
    $dbh->do("DROP TABLE artist");
    $dbh->do("DROP TABLE track");
    $dbh->do("DROP TABLE cd");
  };

  $dbh->do("CREATE SEQUENCE artist_pk_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
  $dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
  $dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");

  $dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), autoinc_col NUMBER(12), rank NUMBER(38), charfield VARCHAR2(10))");
  $dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");

  $dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
  $dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");

  $dbh->do("CREATE TABLE track (trackid NUMBER(12), cd NUMBER(12) REFERENCES cd(cdid) DEFERRABLE, position NUMBER(12), title VARCHAR(255), last_updated_on DATE, last_updated_at DATE, small_dt DATE)");
  $dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");

  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER artist_insert_trg_pk
    BEFORE INSERT ON artist
    FOR EACH ROW
      BEGIN
        IF :new.artistid IS NULL THEN
          SELECT artist_pk_seq.nextval
          INTO :new.artistid
          FROM DUAL;
        END IF;
      END;
  });
  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER cd_insert_trg
    BEFORE INSERT OR UPDATE ON cd
    FOR EACH ROW

      DECLARE
      tmpVar NUMBER;

      BEGIN
        tmpVar := 0;

        IF :new.cdid IS NULL THEN
          SELECT cd_seq.nextval
          INTO tmpVar
          FROM dual;

          :new.cdid := tmpVar;
        END IF;
      END;
  });
  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER track_insert_trg
    BEFORE INSERT ON track
    FOR EACH ROW
      BEGIN
        IF :new.trackid IS NULL THEN
          SELECT track_seq.nextval
          INTO :new.trackid
          FROM DUAL;
        END IF;
      END;
  });
}

# clean up our mess
END {
  eval {
    my $dbh = $schema->storage->dbh;
    $dbh->do("DROP SEQUENCE artist_pk_seq");
    $dbh->do("DROP SEQUENCE cd_seq");
    $dbh->do("DROP SEQUENCE track_seq");
    $dbh->do("DROP TABLE artist");
    $dbh->do("DROP TABLE track");
    $dbh->do("DROP TABLE cd");
  };
}
Commit	Line	Data
12e05c15	1	use strict;
	2	use warnings;
	3
	4	use Test::Exception;
	5	use Test::More;
	6
	7	use lib qw(t/lib);
	8	use DBIC::SqlMakerTest;
	9
994dc91b	10	$ENV{NLS_SORT} = "BINARY";
	11	$ENV{NLS_COMP} = "BINARY";
	12	$ENV{NLS_LANG} = "AMERICAN";
	13
c7d50a7d	14	plan skip_all => 'Test needs ' . DBIx::Class::Optional::Dependencies->req_missing_for ('test_rdbms_oracle')
	15	unless DBIx::Class::Optional::Dependencies->req_ok_for ('test_rdbms_oracle');
	16
12e05c15	17	my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_ORA_${_}" } qw/DSN USER PASS/};
	18
	19	plan skip_all => 'Set $ENV{DBICTEST_ORA_DSN}, _USER and _PASS to run this test.'
	20	unless ($dsn && $user && $pass);
	21
	22	use DBICTest::Schema::Artist;
	23	BEGIN {
	24	DBICTest::Schema::Artist->add_column('parentid');
	25
	26	DBICTest::Schema::Artist->has_many(
	27	children => 'DBICTest::Schema::Artist',
	28	{ 'foreign.parentid' => 'self.artistid' }
	29	);
	30
	31	DBICTest::Schema::Artist->belongs_to(
	32	parent => 'DBICTest::Schema::Artist',
	33	{ 'foreign.artistid' => 'self.parentid' }
	34	);
	35	}
	36
	37	use DBICTest::Schema;
	38
	39	my $schema = DBICTest::Schema->connect($dsn, $user, $pass);
	40
	41	note "Oracle Version: " . $schema->storage->_server_info->{dbms_version};
	42
	43	my $dbh = $schema->storage->dbh;
	44	do_creates($dbh);
	45
	46	### test hierarchical queries
	47	{
	48	$schema->resultset('Artist')->create ({
	49	name => 'root',
	50	rank => 1,
	51	cds => [],
	52	children => [
	53	{
	54	name => 'child1',
	55	rank => 2,
	56	children => [
	57	{
	58	name => 'grandchild',
	59	rank => 3,
	60	cds => [
	61	{
	62	title => "grandchilds's cd" ,
	63	year => '2008',
	64	tracks => [
	65	{
	66	position => 1,
	67	title => 'Track 1 grandchild',
	68	}
	69	],
	70	}
	71	],
	72	children => [
	73	{
	74	name => 'greatgrandchild',
	75	rank => 3,
	76	}
	77	],
	78	}
	79	],
	80	},
81	{
82	name => 'child2',
83	rank => 3,
84	},
85	],
86	});
87
88	$schema->resultset('Artist')->create({
89	name => 'cycle-root',
90	children => [
91	{
92	name => 'cycle-child1',
93	children => [ { name => 'cycle-grandchild' } ],
94	},
95	{
96	name => 'cycle-child2'
97	},
98	],
99	});
100
101	$schema->resultset('Artist')->find({ name => 'cycle-root' })
102	->update({ parentid => { -ident => 'artistid' } });
103
104	# select the whole tree
105	{
106	my $rs = $schema->resultset('Artist')->search({}, {
107	start_with => { name => 'root' },
108	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
109	});
110
111	is_same_sql_bind (
112	$rs->as_query,
113	'(
114	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
115	FROM artist me
116	START WITH name = ?
117	CONNECT BY parentid = PRIOR artistid
118	)',
119	[ [ name => 'root'] ],
120	);
121	is_deeply (
122	[ $rs->get_column ('name')->all ],
123	[ qw/root child1 grandchild greatgrandchild child2/ ],
124	'got artist tree',
125	);
126
127	is_same_sql_bind (
128	$rs->count_rs->as_query,
129	'(
130	SELECT COUNT( * )
131	FROM artist me
132	START WITH name = ?
133	CONNECT BY parentid = PRIOR artistid
134	)',
135	[ [ name => 'root'] ],
136	);
137
138	is( $rs->count, 5, 'Connect By count ok' );
139	}
140
141	# use order siblings by statement
142	SKIP: {
143	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
144	skip q{Oracle8i doesn't support ORDER SIBLINGS BY}, 1
145	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
146
147	my $rs = $schema->resultset('Artist')->search({}, {
148	start_with => { name => 'root' },
149	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
150	order_siblings_by => { -desc => 'name' },
151	});
152
153	is_same_sql_bind (
154	$rs->as_query,
155	'(
156	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
157	FROM artist me
158	START WITH name = ?
159	CONNECT BY parentid = PRIOR artistid
160	ORDER SIBLINGS BY name DESC
161	)',
162	[ [ name => 'root'] ],
163	);
164
165	is_deeply (
166	[ $rs->get_column ('name')->all ],
167	[ qw/root child2 child1 grandchild greatgrandchild/ ],
168	'Order Siblings By ok',
169	);
170	}
171
172	# get the root node
173	{
174	my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
175	start_with => { name => 'root' },
176	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
177	});
178
179	is_same_sql_bind (
180	$rs->as_query,
181	'(
182	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
183	FROM artist me
184	WHERE ( parentid IS NULL )
185	START WITH name = ?
186	CONNECT BY parentid = PRIOR artistid
187	)',
188	[ [ name => 'root'] ],
189	);
190
191	is_deeply(
192	[ $rs->get_column('name')->all ],
193	[ 'root' ],
194	'found root node',
195	);
196	}
197
198	# combine a connect by with a join
199	SKIP: {
200	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
201	skip q{Oracle8i doesn't support connect by with join}, 1
202	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
203
204	my $rs = $schema->resultset('Artist')->search(
205	{'cds.title' => { -like => '%cd'} },
206	{
207	join => 'cds',
208	start_with => { 'me.name' => 'root' },
209	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
210	}
211	);
212
213	is_same_sql_bind (
214	$rs->as_query,
215	'(
216	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
217	FROM artist me
218	LEFT JOIN cd cds ON cds.artist = me.artistid
219	WHERE ( cds.title LIKE ? )
220	START WITH me.name = ?
221	CONNECT BY parentid = PRIOR artistid
222	)',
223	[ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
224	);
225
226	is_deeply(
227	[ $rs->get_column('name')->all ],
228	[ 'grandchild' ],
229	'Connect By with a join result name ok'
230	);
231
232	is_same_sql_bind (
233	$rs->count_rs->as_query,
234	'(
235	SELECT COUNT( * )
236	FROM artist me
237	LEFT JOIN cd cds ON cds.artist = me.artistid
238	WHERE ( cds.title LIKE ? )
239	START WITH me.name = ?
240	CONNECT BY parentid = PRIOR artistid
241	)',
242	[ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
243	);
244
245	is( $rs->count, 1, 'Connect By with a join; count ok' );
246	}
247
248	# combine a connect by with order_by
249	{
250	my $rs = $schema->resultset('Artist')->search({}, {
251	start_with => { name => 'root' },
252	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
253	order_by => { -asc => [ 'LEVEL', 'name' ] },
254	});
255
256	is_same_sql_bind (
257	$rs->as_query,
258	'(
259	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
260	FROM artist me
261	START WITH name = ?
262	CONNECT BY parentid = PRIOR artistid
263	ORDER BY LEVEL ASC, name ASC
264	)',
265	[ [ name => 'root' ] ],
266	);
267
268
269	# Don't use "$rs->get_column ('name')->all" they build a query arround the $rs.
270	# If $rs has a order by, the order by is in the subquery and this doesn't work with Oracle 8i.
271	# TODO: write extra test and fix order by handling on Oracle 8i
272	is_deeply (
273	[ map { $_->[1] } $rs->cursor->all ],
274	[ qw/root child1 child2 grandchild greatgrandchild/ ],
275	'Connect By with a order_by - result name ok (without get_column)'
276	);
277
278	SKIP: {
279	skip q{Connect By with a order_by - result name ok (with get_column), Oracle8i doesn't support order by in a subquery},1
280	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
281	is_deeply (
282	[ $rs->get_column ('name')->all ],
283	[ qw/root child1 child2 grandchild greatgrandchild/ ],
284	'Connect By with a order_by - result name ok (with get_column)'
285	);
286	}
287	}
288
289
290	# limit a connect by
291	SKIP: {
292	skip q{Oracle8i doesn't support order by in a subquery}, 1
293	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
294
295	my $rs = $schema->resultset('Artist')->search({}, {
296	start_with => { name => 'root' },
297	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
298	order_by => { -asc => 'name' },
299	rows => 2,
300	});
301
302	is_same_sql_bind (
303	$rs->as_query,
304	'(
305	SELECT artistid, name, rank, charfield, parentid
306	FROM (
307	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
308	FROM artist me
309	START WITH name = ?
310	CONNECT BY parentid = PRIOR artistid
311	ORDER BY name ASC
312	) me
313	WHERE ROWNUM <= 2
314	)',
315	[ [ name => 'root' ] ],
316	);
317
318	is_deeply (
319	[ $rs->get_column ('name')->all ],
320	[qw/child1 child2/],
321	'LIMIT a Connect By query - correct names'
322	);
323
324	is_same_sql_bind (
325	$rs->count_rs->as_query,
326	'(
327	SELECT COUNT( * )
328	FROM (
329	SELECT artistid
330	FROM (
331	SELECT me.artistid
332	FROM artist me
333	START WITH name = ?
334	CONNECT BY parentid = PRIOR artistid
335	) me
336	WHERE ROWNUM <= 2
337	) me
338	)',
339	[ [ name => 'root' ] ],
340	);
341
342	is( $rs->count, 2, 'Connect By; LIMIT count ok' );
343	}
344
345	# combine a connect_by with group_by and having
346	{
347	my $rs = $schema->resultset('Artist')->search({}, {
348	select => { count => 'rank', -as => 'cnt' },
349	start_with => { name => 'root' },
350	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
351	group_by => ['rank'],
352	having => \[ 'count(rank) < ?', [ cnt => 2 ] ],
353	});
354
355	is_same_sql_bind (
356	$rs->as_query,
357	'(
358	SELECT COUNT(rank) AS cnt
359	FROM artist me
360	START WITH name = ?
361	CONNECT BY parentid = PRIOR artistid
362	GROUP BY rank HAVING count(rank) < ?
363	)',
364	[ [ name => 'root' ], [ cnt => 2 ] ],
365	);
366
367	is_deeply (
368	[ $rs->get_column ('cnt')->all ],
369	[1, 1],
370	'Group By a Connect By query - correct values'
371	);
372	}
373
374	# select the whole cycle tree without nocylce
375	{
376	my $rs = $schema->resultset('Artist')->search({}, {
377	start_with => { name => 'cycle-root' },
378	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
379	});
380
381	# ORA-01436: CONNECT BY loop in user data
382	throws_ok { $rs->get_column ('name')->all } qr/ORA-01436/,
383	"connect by initify loop detection without nocycle";
384	}
385
386	# select the whole cycle tree with nocylce
387	SKIP: {
388	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/expressi.htm#1023748
389	skip q{Oracle8i doesn't support connect by nocycle}, 1
390	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
391
392	my $rs = $schema->resultset('Artist')->search({}, {
393	start_with => { name => 'cycle-root' },
394	'+select' => \ 'CONNECT_BY_ISCYCLE',
395	'+as' => [ 'connector' ],
396	connect_by_nocycle => { parentid => { -prior => { -ident => 'artistid' } } },
397	});
398
399	is_same_sql_bind (
400	$rs->as_query,
401	'(
402	SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid, CONNECT_BY_ISCYCLE
403	FROM artist me
404	START WITH name = ?
405	CONNECT BY NOCYCLE parentid = PRIOR artistid
406	)',
407	[ [ name => 'cycle-root'] ],
408	);
409	is_deeply (
410	[ $rs->get_column ('name')->all ],
411	[ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
412	'got artist tree with nocycle (name)',
413	);
414	is_deeply (
415	[ $rs->get_column ('connector')->all ],
416	[ qw/1 0 0 0/ ],
417	'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
418	);
419
420	is_same_sql_bind (
421	$rs->count_rs->as_query,
422	'(
423	SELECT COUNT( * )
424	FROM artist me
425	START WITH name = ?
426	CONNECT BY NOCYCLE parentid = PRIOR artistid
427	)',
428	[ [ name => 'cycle-root'] ],
429	);
430
431	is( $rs->count, 4, 'Connect By Nocycle count ok' );
432	}
433	}
434
435	done_testing;
436
437	sub do_creates {
438	my $dbh = shift;
439
440	eval {
441	$dbh->do("DROP SEQUENCE artist_autoinc_seq");
442	$dbh->do("DROP SEQUENCE artist_pk_seq");
443	$dbh->do("DROP SEQUENCE cd_seq");
444	$dbh->do("DROP SEQUENCE track_seq");
445	$dbh->do("DROP TABLE artist");
446	$dbh->do("DROP TABLE track");
447	$dbh->do("DROP TABLE cd");
448	};
449
450	$dbh->do("CREATE SEQUENCE artist_pk_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
451	$dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
452	$dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
453
454	$dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), autoinc_col NUMBER(12), rank NUMBER(38), charfield VARCHAR2(10))");
455	$dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");
456
457	$dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
458	$dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");
459
460	$dbh->do("CREATE TABLE track (trackid NUMBER(12), cd NUMBER(12) REFERENCES cd(cdid) DEFERRABLE, position NUMBER(12), title VARCHAR(255), last_updated_on DATE, last_updated_at DATE, small_dt DATE)");
461	$dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");
462
463	$dbh->do(qq{
464	CREATE OR REPLACE TRIGGER artist_insert_trg_pk
465	BEFORE INSERT ON artist
466	FOR EACH ROW
467	BEGIN
468	IF :new.artistid IS NULL THEN
469	SELECT artist_pk_seq.nextval
470	INTO :new.artistid
471	FROM DUAL;
472	END IF;
473	END;
474	});
475	$dbh->do(qq{
476	CREATE OR REPLACE TRIGGER cd_insert_trg
477	BEFORE INSERT OR UPDATE ON cd
478	FOR EACH ROW
479
480	DECLARE
481	tmpVar NUMBER;
482
483	BEGIN
484	tmpVar := 0;
485
486	IF :new.cdid IS NULL THEN
487	SELECT cd_seq.nextval
488	INTO tmpVar
489	FROM dual;
490
491	:new.cdid := tmpVar;
492	END IF;
493	END;
494	});
495	$dbh->do(qq{
496	CREATE OR REPLACE TRIGGER track_insert_trg
497	BEFORE INSERT ON track
498	FOR EACH ROW
499	BEGIN
500	IF :new.trackid IS NULL THEN
501	SELECT track_seq.nextval
502	INTO :new.trackid
503	FROM DUAL;
504	END IF;
505	END;
506	});
507	}
508
509	# clean up our mess
510	END {
511	eval {
512	my $dbh = $schema->storage->dbh;
513	$dbh->do("DROP SEQUENCE artist_pk_seq");
514	$dbh->do("DROP SEQUENCE cd_seq");
515	$dbh->do("DROP SEQUENCE track_seq");
516	$dbh->do("DROP TABLE artist");
517	$dbh->do("DROP TABLE track");
518	$dbh->do("DROP TABLE cd");
519	};
520	}