Commit | Line | Data |
18360aed |
1 | package DBIx::Class::Storage::DBI::Oracle::Generic; |
2 | |
3 | use strict; |
4 | use warnings; |
b7b18f32 |
5 | use Scope::Guard (); |
6298a324 |
6 | use Context::Preserve 'preserve_context'; |
ed7ab0f4 |
7 | use Try::Tiny; |
fd323bf1 |
8 | use namespace::clean; |
18360aed |
9 | |
6a247f33 |
10 | __PACKAGE__->sql_limit_dialect ('RowNum'); |
11 | |
7137528d |
12 | =head1 NAME |
13 | |
7a84c41b |
14 | DBIx::Class::Storage::DBI::Oracle::Generic - Oracle Support for DBIx::Class |
7137528d |
15 | |
16 | =head1 SYNOPSIS |
17 | |
d88ecca6 |
18 | # In your result (table) classes |
19 | use base 'DBIx::Class::Core'; |
2e46b6eb |
20 | __PACKAGE__->add_columns({ id => { sequence => 'mysequence', auto_nextval => 1 } }); |
7137528d |
21 | __PACKAGE__->set_primary_key('id'); |
7137528d |
22 | |
c0024355 |
23 | # Somewhere in your Code |
24 | # add some data to a table with a hierarchical relationship |
25 | $schema->resultset('Person')->create ({ |
26 | firstname => 'foo', |
27 | lastname => 'bar', |
28 | children => [ |
29 | { |
30 | firstname => 'child1', |
31 | lastname => 'bar', |
32 | children => [ |
33 | { |
34 | firstname => 'grandchild', |
35 | lastname => 'bar', |
36 | } |
37 | ], |
38 | }, |
39 | { |
40 | firstname => 'child2', |
41 | lastname => 'bar', |
42 | }, |
43 | ], |
44 | }); |
45 | |
46 | # select from the hierarchical relationship |
47 | my $rs = $schema->resultset('Person')->search({}, |
48 | { |
49 | 'start_with' => { 'firstname' => 'foo', 'lastname' => 'bar' }, |
e6600283 |
50 | 'connect_by' => { 'parentid' => { '-prior' => { -ident => 'personid' } }, |
25ca709b |
51 | 'order_siblings_by' => { -asc => 'name' }, |
c0024355 |
52 | }; |
53 | ); |
54 | |
55 | # this will select the whole tree starting from person "foo bar", creating |
56 | # following query: |
57 | # SELECT |
58 | # me.persionid me.firstname, me.lastname, me.parentid |
59 | # FROM |
60 | # person me |
61 | # START WITH |
62 | # firstname = 'foo' and lastname = 'bar' |
63 | # CONNECT BY |
e6600283 |
64 | # parentid = prior personid |
c0024355 |
65 | # ORDER SIBLINGS BY |
66 | # firstname ASC |
67 | |
7137528d |
68 | =head1 DESCRIPTION |
69 | |
6c0230de |
70 | This class implements base Oracle support. The subclass |
71 | L<DBIx::Class::Storage::DBI::Oracle::WhereJoins> is for C<(+)> joins in Oracle |
72 | versions before 9. |
7137528d |
73 | |
74 | =head1 METHODS |
75 | |
76 | =cut |
77 | |
db56cf3d |
78 | use base qw/DBIx::Class::Storage::DBI/; |
2ad62d97 |
79 | use mro 'c3'; |
18360aed |
80 | |
d5dedbd6 |
81 | __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::Oracle'); |
c0024355 |
82 | |
bf51641f |
83 | sub _determine_supports_insert_returning { |
84 | my $self = shift; |
85 | |
86 | # TODO find out which version supports the RETURNING syntax |
87 | # 8i has it and earlier docs are a 404 on oracle.com |
88 | |
89 | return 1 |
90 | if $self->_server_info->{normalized_dbms_version} >= 8.001; |
91 | |
92 | return 0; |
93 | } |
94 | |
95 | __PACKAGE__->_use_insert_returning_bound (1); |
96 | |
dd2600c6 |
97 | sub deployment_statements { |
98 | my $self = shift;; |
99 | my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_; |
100 | |
101 | $sqltargs ||= {}; |
032b2366 |
102 | my $quote_char = $self->schema->storage->sql_maker->quote_char; |
103 | $sqltargs->{quote_table_names} = $quote_char ? 1 : 0; |
104 | $sqltargs->{quote_field_names} = $quote_char ? 1 : 0; |
dd2600c6 |
105 | |
96736321 |
106 | if ( |
107 | ! exists $sqltargs->{producer_args}{oracle_version} |
108 | and |
109 | my $dver = $self->_server_info->{dbms_version} |
110 | ) { |
111 | $sqltargs->{producer_args}{oracle_version} = $dver; |
112 | } |
a4433d8e |
113 | |
38aead8e |
114 | $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest); |
dd2600c6 |
115 | } |
116 | |
18360aed |
117 | sub _dbh_last_insert_id { |
2e46b6eb |
118 | my ($self, $dbh, $source, @columns) = @_; |
119 | my @ids = (); |
120 | foreach my $col (@columns) { |
121 | my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col)); |
07cda1c5 |
122 | my $id = $self->_sequence_fetch( 'CURRVAL', $seq ); |
2e46b6eb |
123 | push @ids, $id; |
124 | } |
125 | return @ids; |
18360aed |
126 | } |
127 | |
128 | sub _dbh_get_autoinc_seq { |
129 | my ($self, $dbh, $source, $col) = @_; |
130 | |
032b2366 |
131 | my $sql_maker = $self->sql_maker; |
07cda1c5 |
132 | my ($ql, $qr) = map { $_ ? (quotemeta $_) : '' } $sql_maker->_quote_chars; |
cb464582 |
133 | |
e6dd7b42 |
134 | my $source_name; |
032b2366 |
135 | if ( ref $source->name eq 'SCALAR' ) { |
136 | $source_name = ${$source->name}; |
07cda1c5 |
137 | |
138 | # the ALL_TRIGGERS match further on is case sensitive - thus uppercase |
139 | # stuff unless it is already quoted |
140 | $source_name = uc ($source_name) if $source_name !~ /\"/; |
e6dd7b42 |
141 | } |
142 | else { |
032b2366 |
143 | $source_name = $source->name; |
07cda1c5 |
144 | $source_name = uc($source_name) unless $ql; |
e6dd7b42 |
145 | } |
38aead8e |
146 | |
032b2366 |
147 | # trigger_body is a LONG |
148 | local $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024); |
149 | |
150 | # disable default bindtype |
151 | local $sql_maker->{bindtype} = 'normal'; |
152 | |
07cda1c5 |
153 | |
032b2366 |
154 | # look up the correct sequence automatically |
07cda1c5 |
155 | my ( $schema, $table ) = $source_name =~ /( (?:${ql})? \w+ (?:${qr})? ) \. ( (?:${ql})? \w+ (?:${qr})? )/x; |
032b2366 |
156 | my ($sql, @bind) = $sql_maker->select ( |
157 | 'ALL_TRIGGERS', |
07cda1c5 |
158 | [qw/TRIGGER_BODY TABLE_OWNER TRIGGER_NAME/], |
032b2366 |
159 | { |
07cda1c5 |
160 | $schema ? (OWNER => $schema) : (), |
161 | TABLE_NAME => $table || $source_name, |
162 | TRIGGERING_EVENT => { -like => '%INSERT%' }, # this will also catch insert_or_update |
163 | TRIGGER_TYPE => { -like => '%BEFORE%' }, # we care only about 'before' triggers |
164 | STATUS => 'ENABLED', |
032b2366 |
165 | }, |
166 | ); |
e6dd7b42 |
167 | |
6f5f880d |
168 | # to find all the triggers that mention the column in question a simple |
169 | # regex grep since the trigger_body above is a LONG and hence not searchable |
170 | my @triggers = ( map |
171 | { my %inf; @inf{qw/body schema name/} = @$_; \%inf } |
172 | ( grep |
07cda1c5 |
173 | { $_->[0] =~ /\:new\.${ql}${col}${qr} | \:new\.$col/xi } |
6f5f880d |
174 | @{ $dbh->selectall_arrayref( $sql, {}, @bind ) } |
175 | ) |
176 | ); |
177 | |
178 | # extract all sequence names mentioned in each trigger |
179 | for (@triggers) { |
180 | $_->{sequences} = [ $_->{body} =~ / ( "? [\.\w\"\-]+ "? ) \. nextval /xig ]; |
181 | } |
182 | |
183 | my $chosen_trigger; |
184 | |
185 | # if only one trigger matched things are easy |
186 | if (@triggers == 1) { |
187 | |
188 | if ( @{$triggers[0]{sequences}} == 1 ) { |
189 | $chosen_trigger = $triggers[0]; |
190 | } |
191 | else { |
192 | $self->throw_exception( sprintf ( |
193 | "Unable to introspect trigger '%s' for column %s.%s (references multiple sequences). " |
194 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
195 | $triggers[0]{name}, |
196 | $source_name, |
197 | $col, |
198 | $col, |
199 | ) ); |
200 | } |
201 | } |
202 | # got more than one matching trigger - see if we can narrow it down |
203 | elsif (@triggers > 1) { |
df6e3f5c |
204 | |
6f5f880d |
205 | my @candidates = grep |
206 | { $_->{body} =~ / into \s+ \:new\.$col /xi } |
207 | @triggers |
208 | ; |
df6e3f5c |
209 | |
6f5f880d |
210 | if (@candidates == 1 && @{$candidates[0]{sequences}} == 1) { |
211 | $chosen_trigger = $candidates[0]; |
df6e3f5c |
212 | } |
6f5f880d |
213 | else { |
214 | $self->throw_exception( sprintf ( |
215 | "Unable to reliably select a BEFORE INSERT trigger for column %s.%s (possibilities: %s). " |
216 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
217 | $source_name, |
218 | $col, |
219 | ( join ', ', map { "'$_->{name}'" } @triggers ), |
220 | $col, |
221 | ) ); |
222 | } |
223 | } |
224 | |
225 | if ($chosen_trigger) { |
226 | my $seq_name = $chosen_trigger->{sequences}[0]; |
227 | |
228 | $seq_name = "$chosen_trigger->{schema}.$seq_name" |
229 | unless $seq_name =~ /\./; |
df6e3f5c |
230 | |
07cda1c5 |
231 | return \$seq_name if $seq_name =~ /\"/; # may already be quoted in-trigger |
df6e3f5c |
232 | return $seq_name; |
18360aed |
233 | } |
6f5f880d |
234 | |
235 | $self->throw_exception( sprintf ( |
236 | "No suitable BEFORE INSERT triggers found for column %s.%s. " |
237 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
238 | $source_name, |
239 | $col, |
240 | $col, |
241 | )); |
18360aed |
242 | } |
243 | |
2e46b6eb |
244 | sub _sequence_fetch { |
245 | my ( $self, $type, $seq ) = @_; |
07cda1c5 |
246 | |
247 | # use the maker to leverage quoting settings |
248 | my $sql_maker = $self->sql_maker; |
249 | my ($id) = $self->_get_dbh->selectrow_array ($sql_maker->select('DUAL', [ ref $seq ? \"$$seq.$type" : "$seq.$type" ] ) ); |
2e46b6eb |
250 | return $id; |
251 | } |
252 | |
6dc4be0f |
253 | sub _ping { |
c2481821 |
254 | my $self = shift; |
7ba7a57d |
255 | |
6dc4be0f |
256 | my $dbh = $self->_dbh or return 0; |
7ba7a57d |
257 | |
6dc4be0f |
258 | local $dbh->{RaiseError} = 1; |
ecdf1ac8 |
259 | local $dbh->{PrintError} = 0; |
c2d7baef |
260 | |
52b420dd |
261 | return try { |
ecdf1ac8 |
262 | $dbh->do('select 1 from dual'); |
52b420dd |
263 | 1; |
ed7ab0f4 |
264 | } catch { |
52b420dd |
265 | 0; |
6dc4be0f |
266 | }; |
c2481821 |
267 | } |
268 | |
d789fa99 |
269 | sub _dbh_execute { |
270 | my $self = shift; |
271 | my ($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) = @_; |
272 | |
87560ef9 |
273 | my (@res, $tried); |
cca282b6 |
274 | my $want = wantarray; |
4f661051 |
275 | my $next = $self->next::can; |
87560ef9 |
276 | do { |
52b420dd |
277 | try { |
dd415de8 |
278 | my $exec = sub { $self->$next($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) }; |
279 | |
cca282b6 |
280 | if (!defined $want) { |
dd415de8 |
281 | $exec->(); |
282 | } |
cca282b6 |
283 | elsif (! $want) { |
dd415de8 |
284 | $res[0] = $exec->(); |
285 | } |
286 | else { |
287 | @res = $exec->(); |
288 | } |
87560ef9 |
289 | |
290 | $tried++; |
52b420dd |
291 | } |
292 | catch { |
87560ef9 |
293 | if (! $tried and $_ =~ /ORA-01003/) { |
0f0abc97 |
294 | # ORA-01003: no statement parsed (someone changed the table somehow, |
295 | # invalidating your cursor.) |
296 | my ($sql, $bind) = $self->_prep_for_execute($op, $extra_bind, $ident, \@args); |
297 | delete $dbh->{CachedKids}{$sql}; |
d789fa99 |
298 | } |
52b420dd |
299 | else { |
300 | $self->throw_exception($_); |
301 | } |
302 | }; |
87560ef9 |
303 | } while (! $tried++); |
d789fa99 |
304 | |
cca282b6 |
305 | return wantarray ? @res : $res[0]; |
d789fa99 |
306 | } |
307 | |
7137528d |
308 | =head2 get_autoinc_seq |
309 | |
310 | Returns the sequence name for an autoincrement column |
311 | |
312 | =cut |
313 | |
18360aed |
314 | sub get_autoinc_seq { |
315 | my ($self, $source, $col) = @_; |
d4daee7b |
316 | |
373940e1 |
317 | $self->dbh_do('_dbh_get_autoinc_seq', $source, $col); |
18360aed |
318 | } |
319 | |
8f7e044c |
320 | =head2 datetime_parser_type |
321 | |
322 | This sets the proper DateTime::Format module for use with |
323 | L<DBIx::Class::InflateColumn::DateTime>. |
324 | |
325 | =cut |
326 | |
327 | sub datetime_parser_type { return "DateTime::Format::Oracle"; } |
328 | |
9900b569 |
329 | =head2 connect_call_datetime_setup |
d2a3958e |
330 | |
331 | Used as: |
332 | |
9900b569 |
333 | on_connect_call => 'datetime_setup' |
d2a3958e |
334 | |
8384a713 |
335 | In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the session nls |
336 | date, and timestamp values for use with L<DBIx::Class::InflateColumn::DateTime> |
337 | and the necessary environment variables for L<DateTime::Format::Oracle>, which |
338 | is used by it. |
d2a3958e |
339 | |
82f6f45f |
340 | Maximum allowable precision is used, unless the environment variables have |
341 | already been set. |
d2a3958e |
342 | |
9900b569 |
343 | These are the defaults used: |
344 | |
345 | $ENV{NLS_DATE_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS'; |
346 | $ENV{NLS_TIMESTAMP_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS.FF'; |
347 | $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS.FF TZHTZM'; |
348 | |
d9e53b85 |
349 | To get more than second precision with L<DBIx::Class::InflateColumn::DateTime> |
350 | for your timestamps, use something like this: |
351 | |
352 | use Time::HiRes 'time'; |
353 | my $ts = DateTime->from_epoch(epoch => time); |
354 | |
d2a3958e |
355 | =cut |
356 | |
9900b569 |
357 | sub connect_call_datetime_setup { |
d2a3958e |
358 | my $self = shift; |
d2a3958e |
359 | |
360 | my $date_format = $ENV{NLS_DATE_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS'; |
361 | my $timestamp_format = $ENV{NLS_TIMESTAMP_FORMAT} ||= |
362 | 'YYYY-MM-DD HH24:MI:SS.FF'; |
363 | my $timestamp_tz_format = $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||= |
364 | 'YYYY-MM-DD HH24:MI:SS.FF TZHTZM'; |
365 | |
7a84c41b |
366 | $self->_do_query( |
d7a58a29 |
367 | "alter session set nls_date_format = '$date_format'" |
368 | ); |
7a84c41b |
369 | $self->_do_query( |
d7a58a29 |
370 | "alter session set nls_timestamp_format = '$timestamp_format'" |
371 | ); |
7a84c41b |
372 | $self->_do_query( |
d7a58a29 |
373 | "alter session set nls_timestamp_tz_format='$timestamp_tz_format'" |
374 | ); |
d2a3958e |
375 | } |
376 | |
5db2758d |
377 | =head2 source_bind_attributes |
378 | |
379 | Handle LOB types in Oracle. Under a certain size (4k?), you can get away |
380 | with the driver assuming your input is the deprecated LONG type if you |
381 | encode it as a hex string. That ain't gonna fly at larger values, where |
382 | you'll discover you have to do what this does. |
383 | |
384 | This method had to be overridden because we need to set ora_field to the |
385 | actual column, and that isn't passed to the call (provided by Storage) to |
386 | bind_attribute_by_data_type. |
387 | |
388 | According to L<DBD::Oracle>, the ora_field isn't always necessary, but |
389 | adding it doesn't hurt, and will save your bacon if you're modifying a |
390 | table with more than one LOB column. |
391 | |
392 | =cut |
393 | |
e6dd7b42 |
394 | sub source_bind_attributes |
5db2758d |
395 | { |
d7a58a29 |
396 | require DBD::Oracle; |
397 | my $self = shift; |
398 | my($source) = @_; |
5db2758d |
399 | |
d7a58a29 |
400 | my %bind_attributes; |
5db2758d |
401 | |
d7a58a29 |
402 | foreach my $column ($source->columns) { |
07cda1c5 |
403 | my $data_type = $source->column_info($column)->{data_type} |
404 | or next; |
5db2758d |
405 | |
d7a58a29 |
406 | my %column_bind_attrs = $self->bind_attribute_by_data_type($data_type); |
5db2758d |
407 | |
d7a58a29 |
408 | if ($data_type =~ /^[BC]LOB$/i) { |
931e5d43 |
409 | if ($DBD::Oracle::VERSION eq '1.23') { |
410 | $self->throw_exception( |
411 | "BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later ". |
555cc3f4 |
412 | "version.\n\nSee: https://rt.cpan.org/Public/Bug/Display.html?id=46016\n" |
931e5d43 |
413 | ); |
414 | } |
5db2758d |
415 | |
d7a58a29 |
416 | $column_bind_attrs{'ora_type'} = uc($data_type) eq 'CLOB' |
417 | ? DBD::Oracle::ORA_CLOB() |
418 | : DBD::Oracle::ORA_BLOB() |
419 | ; |
420 | $column_bind_attrs{'ora_field'} = $column; |
421 | } |
5db2758d |
422 | |
d7a58a29 |
423 | $bind_attributes{$column} = \%column_bind_attrs; |
424 | } |
5db2758d |
425 | |
d7a58a29 |
426 | return \%bind_attributes; |
5db2758d |
427 | } |
428 | |
1816be4f |
429 | sub _svp_begin { |
d7a58a29 |
430 | my ($self, $name) = @_; |
431 | $self->_get_dbh->do("SAVEPOINT $name"); |
1816be4f |
432 | } |
433 | |
281719d2 |
434 | # Oracle automatically releases a savepoint when you start another one with the |
435 | # same name. |
436 | sub _svp_release { 1 } |
437 | |
438 | sub _svp_rollback { |
d7a58a29 |
439 | my ($self, $name) = @_; |
440 | $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name") |
281719d2 |
441 | } |
442 | |
6c0230de |
443 | =head2 relname_to_table_alias |
444 | |
445 | L<DBIx::Class> uses L<DBIx::Class::Relationship> names as table aliases in |
446 | queries. |
447 | |
448 | Unfortunately, Oracle doesn't support identifiers over 30 chars in length, so |
af0edca1 |
449 | the L<DBIx::Class::Relationship> name is shortened and appended with half of an |
450 | MD5 hash. |
6c0230de |
451 | |
452 | See L<DBIx::Class::Storage/"relname_to_table_alias">. |
453 | |
454 | =cut |
455 | |
456 | sub relname_to_table_alias { |
457 | my $self = shift; |
458 | my ($relname, $join_count) = @_; |
459 | |
460 | my $alias = $self->next::method(@_); |
461 | |
63ca94e1 |
462 | return $self->sql_maker->_shorten_identifier($alias, [$relname]); |
6c0230de |
463 | } |
464 | |
6c0bb6a7 |
465 | =head2 with_deferred_fk_checks |
466 | |
467 | Runs a coderef between: |
468 | |
469 | alter session set constraints = deferred |
470 | ... |
471 | alter session set constraints = immediate |
472 | |
b7b18f32 |
473 | to defer foreign key checks. |
474 | |
475 | Constraints must be declared C<DEFERRABLE> for this to work. |
6c0bb6a7 |
476 | |
477 | =cut |
478 | |
479 | sub with_deferred_fk_checks { |
480 | my ($self, $sub) = @_; |
b7b18f32 |
481 | |
482 | my $txn_scope_guard = $self->txn_scope_guard; |
483 | |
6c0bb6a7 |
484 | $self->_do_query('alter session set constraints = deferred'); |
54161a15 |
485 | |
b7b18f32 |
486 | my $sg = Scope::Guard->new(sub { |
487 | $self->_do_query('alter session set constraints = immediate'); |
488 | }); |
281719d2 |
489 | |
6298a324 |
490 | return |
491 | preserve_context { $sub->() } after => sub { $txn_scope_guard->commit }; |
281719d2 |
492 | } |
493 | |
c0024355 |
494 | =head1 ATTRIBUTES |
495 | |
496 | Following additional attributes can be used in resultsets. |
497 | |
6b2fbbf0 |
498 | =head2 connect_by or connect_by_nocycle |
c0024355 |
499 | |
500 | =over 4 |
501 | |
502 | =item Value: \%connect_by |
503 | |
504 | =back |
505 | |
506 | A hashref of conditions used to specify the relationship between parent rows |
507 | and child rows of the hierarchy. |
508 | |
6b2fbbf0 |
509 | |
c0024355 |
510 | connect_by => { parentid => 'prior personid' } |
511 | |
512 | # adds a connect by statement to the query: |
513 | # SELECT |
514 | # me.persionid me.firstname, me.lastname, me.parentid |
515 | # FROM |
516 | # person me |
517 | # CONNECT BY |
518 | # parentid = prior persionid |
6b2fbbf0 |
519 | |
c0024355 |
520 | |
6b2fbbf0 |
521 | connect_by_nocycle => { parentid => 'prior personid' } |
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522 | |
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523 | # adds a connect by statement to the query: |
524 | # SELECT |
525 | # me.persionid me.firstname, me.lastname, me.parentid |
526 | # FROM |
527 | # person me |
528 | # CONNECT BY NOCYCLE |
529 | # parentid = prior persionid |
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530 | |
531 | |
c0024355 |
532 | =head2 start_with |
533 | |
534 | =over 4 |
535 | |
536 | =item Value: \%condition |
537 | |
538 | =back |
539 | |
540 | A hashref of conditions which specify the root row(s) of the hierarchy. |
541 | |
542 | It uses the same syntax as L<DBIx::Class::ResultSet/search> |
543 | |
544 | start_with => { firstname => 'Foo', lastname => 'Bar' } |
545 | |
546 | # SELECT |
547 | # me.persionid me.firstname, me.lastname, me.parentid |
548 | # FROM |
549 | # person me |
550 | # START WITH |
551 | # firstname = 'foo' and lastname = 'bar' |
552 | # CONNECT BY |
553 | # parentid = prior persionid |
554 | |
555 | =head2 order_siblings_by |
556 | |
557 | =over 4 |
558 | |
559 | =item Value: ($order_siblings_by | \@order_siblings_by) |
560 | |
561 | =back |
562 | |
563 | Which column(s) to order the siblings by. |
564 | |
565 | It uses the same syntax as L<DBIx::Class::ResultSet/order_by> |
566 | |
567 | 'order_siblings_by' => 'firstname ASC' |
568 | |
569 | # SELECT |
570 | # me.persionid me.firstname, me.lastname, me.parentid |
571 | # FROM |
572 | # person me |
573 | # CONNECT BY |
574 | # parentid = prior persionid |
575 | # ORDER SIBLINGS BY |
576 | # firstname ASC |
577 | |
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578 | =head1 AUTHOR |
18360aed |
579 | |
7a84c41b |
580 | See L<DBIx::Class/CONTRIBUTORS>. |
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581 | |
582 | =head1 LICENSE |
583 | |
584 | You may distribute this code under the same terms as Perl itself. |
585 | |
586 | =cut |
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587 | |
588 | 1; |