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'); |
2b8cc2f2 |
11 | __PACKAGE__->sql_quote_char ('"'); |
6a247f33 |
12 | |
7137528d |
13 | =head1 NAME |
14 | |
7a84c41b |
15 | DBIx::Class::Storage::DBI::Oracle::Generic - Oracle Support for DBIx::Class |
7137528d |
16 | |
17 | =head1 SYNOPSIS |
18 | |
d88ecca6 |
19 | # In your result (table) classes |
20 | use base 'DBIx::Class::Core'; |
2e46b6eb |
21 | __PACKAGE__->add_columns({ id => { sequence => 'mysequence', auto_nextval => 1 } }); |
7137528d |
22 | __PACKAGE__->set_primary_key('id'); |
7137528d |
23 | |
c0024355 |
24 | # Somewhere in your Code |
25 | # add some data to a table with a hierarchical relationship |
26 | $schema->resultset('Person')->create ({ |
27 | firstname => 'foo', |
28 | lastname => 'bar', |
29 | children => [ |
30 | { |
31 | firstname => 'child1', |
32 | lastname => 'bar', |
33 | children => [ |
34 | { |
35 | firstname => 'grandchild', |
36 | lastname => 'bar', |
37 | } |
38 | ], |
39 | }, |
40 | { |
41 | firstname => 'child2', |
42 | lastname => 'bar', |
43 | }, |
44 | ], |
45 | }); |
46 | |
47 | # select from the hierarchical relationship |
48 | my $rs = $schema->resultset('Person')->search({}, |
49 | { |
50 | 'start_with' => { 'firstname' => 'foo', 'lastname' => 'bar' }, |
e6600283 |
51 | 'connect_by' => { 'parentid' => { '-prior' => { -ident => 'personid' } }, |
25ca709b |
52 | 'order_siblings_by' => { -asc => 'name' }, |
c0024355 |
53 | }; |
54 | ); |
55 | |
56 | # this will select the whole tree starting from person "foo bar", creating |
57 | # following query: |
58 | # SELECT |
59 | # me.persionid me.firstname, me.lastname, me.parentid |
60 | # FROM |
61 | # person me |
62 | # START WITH |
63 | # firstname = 'foo' and lastname = 'bar' |
64 | # CONNECT BY |
e6600283 |
65 | # parentid = prior personid |
c0024355 |
66 | # ORDER SIBLINGS BY |
67 | # firstname ASC |
68 | |
7137528d |
69 | =head1 DESCRIPTION |
70 | |
6c0230de |
71 | This class implements base Oracle support. The subclass |
72 | L<DBIx::Class::Storage::DBI::Oracle::WhereJoins> is for C<(+)> joins in Oracle |
73 | versions before 9. |
7137528d |
74 | |
75 | =head1 METHODS |
76 | |
77 | =cut |
78 | |
db56cf3d |
79 | use base qw/DBIx::Class::Storage::DBI/; |
2ad62d97 |
80 | use mro 'c3'; |
18360aed |
81 | |
d5dedbd6 |
82 | __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::Oracle'); |
6f7a118e |
83 | __PACKAGE__->datetime_parser_type('DateTime::Format::Oracle'); |
c0024355 |
84 | |
bf51641f |
85 | sub _determine_supports_insert_returning { |
86 | my $self = shift; |
87 | |
88 | # TODO find out which version supports the RETURNING syntax |
89 | # 8i has it and earlier docs are a 404 on oracle.com |
90 | |
91 | return 1 |
92 | if $self->_server_info->{normalized_dbms_version} >= 8.001; |
93 | |
94 | return 0; |
95 | } |
96 | |
97 | __PACKAGE__->_use_insert_returning_bound (1); |
98 | |
dd2600c6 |
99 | sub deployment_statements { |
100 | my $self = shift;; |
101 | my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_; |
102 | |
103 | $sqltargs ||= {}; |
032b2366 |
104 | my $quote_char = $self->schema->storage->sql_maker->quote_char; |
105 | $sqltargs->{quote_table_names} = $quote_char ? 1 : 0; |
106 | $sqltargs->{quote_field_names} = $quote_char ? 1 : 0; |
dd2600c6 |
107 | |
96736321 |
108 | if ( |
109 | ! exists $sqltargs->{producer_args}{oracle_version} |
110 | and |
111 | my $dver = $self->_server_info->{dbms_version} |
112 | ) { |
113 | $sqltargs->{producer_args}{oracle_version} = $dver; |
114 | } |
a4433d8e |
115 | |
38aead8e |
116 | $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest); |
dd2600c6 |
117 | } |
118 | |
18360aed |
119 | sub _dbh_last_insert_id { |
2e46b6eb |
120 | my ($self, $dbh, $source, @columns) = @_; |
121 | my @ids = (); |
122 | foreach my $col (@columns) { |
123 | my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col)); |
07cda1c5 |
124 | my $id = $self->_sequence_fetch( 'CURRVAL', $seq ); |
2e46b6eb |
125 | push @ids, $id; |
126 | } |
127 | return @ids; |
18360aed |
128 | } |
129 | |
130 | sub _dbh_get_autoinc_seq { |
131 | my ($self, $dbh, $source, $col) = @_; |
132 | |
032b2366 |
133 | my $sql_maker = $self->sql_maker; |
07cda1c5 |
134 | my ($ql, $qr) = map { $_ ? (quotemeta $_) : '' } $sql_maker->_quote_chars; |
cb464582 |
135 | |
e6dd7b42 |
136 | my $source_name; |
032b2366 |
137 | if ( ref $source->name eq 'SCALAR' ) { |
138 | $source_name = ${$source->name}; |
07cda1c5 |
139 | |
140 | # the ALL_TRIGGERS match further on is case sensitive - thus uppercase |
141 | # stuff unless it is already quoted |
142 | $source_name = uc ($source_name) if $source_name !~ /\"/; |
e6dd7b42 |
143 | } |
144 | else { |
032b2366 |
145 | $source_name = $source->name; |
07cda1c5 |
146 | $source_name = uc($source_name) unless $ql; |
e6dd7b42 |
147 | } |
38aead8e |
148 | |
032b2366 |
149 | # trigger_body is a LONG |
150 | local $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024); |
151 | |
152 | # disable default bindtype |
153 | local $sql_maker->{bindtype} = 'normal'; |
154 | |
155 | # look up the correct sequence automatically |
07cda1c5 |
156 | my ( $schema, $table ) = $source_name =~ /( (?:${ql})? \w+ (?:${qr})? ) \. ( (?:${ql})? \w+ (?:${qr})? )/x; |
a6646e1b |
157 | |
158 | # if no explicit schema was requested - use the default schema (which in the case of Oracle is the db user) |
159 | $schema ||= uc( ($self->_dbi_connect_info||[])->[1] || ''); |
160 | |
032b2366 |
161 | my ($sql, @bind) = $sql_maker->select ( |
162 | 'ALL_TRIGGERS', |
07cda1c5 |
163 | [qw/TRIGGER_BODY TABLE_OWNER TRIGGER_NAME/], |
032b2366 |
164 | { |
07cda1c5 |
165 | $schema ? (OWNER => $schema) : (), |
166 | TABLE_NAME => $table || $source_name, |
167 | TRIGGERING_EVENT => { -like => '%INSERT%' }, # this will also catch insert_or_update |
168 | TRIGGER_TYPE => { -like => '%BEFORE%' }, # we care only about 'before' triggers |
169 | STATUS => 'ENABLED', |
032b2366 |
170 | }, |
171 | ); |
e6dd7b42 |
172 | |
6f5f880d |
173 | # to find all the triggers that mention the column in question a simple |
174 | # regex grep since the trigger_body above is a LONG and hence not searchable |
175 | my @triggers = ( map |
176 | { my %inf; @inf{qw/body schema name/} = @$_; \%inf } |
177 | ( grep |
07cda1c5 |
178 | { $_->[0] =~ /\:new\.${ql}${col}${qr} | \:new\.$col/xi } |
6f5f880d |
179 | @{ $dbh->selectall_arrayref( $sql, {}, @bind ) } |
180 | ) |
181 | ); |
182 | |
183 | # extract all sequence names mentioned in each trigger |
184 | for (@triggers) { |
185 | $_->{sequences} = [ $_->{body} =~ / ( "? [\.\w\"\-]+ "? ) \. nextval /xig ]; |
186 | } |
187 | |
188 | my $chosen_trigger; |
189 | |
190 | # if only one trigger matched things are easy |
191 | if (@triggers == 1) { |
192 | |
193 | if ( @{$triggers[0]{sequences}} == 1 ) { |
194 | $chosen_trigger = $triggers[0]; |
195 | } |
196 | else { |
197 | $self->throw_exception( sprintf ( |
198 | "Unable to introspect trigger '%s' for column %s.%s (references multiple sequences). " |
199 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
200 | $triggers[0]{name}, |
201 | $source_name, |
202 | $col, |
203 | $col, |
204 | ) ); |
205 | } |
206 | } |
207 | # got more than one matching trigger - see if we can narrow it down |
208 | elsif (@triggers > 1) { |
df6e3f5c |
209 | |
6f5f880d |
210 | my @candidates = grep |
211 | { $_->{body} =~ / into \s+ \:new\.$col /xi } |
212 | @triggers |
213 | ; |
df6e3f5c |
214 | |
6f5f880d |
215 | if (@candidates == 1 && @{$candidates[0]{sequences}} == 1) { |
216 | $chosen_trigger = $candidates[0]; |
df6e3f5c |
217 | } |
6f5f880d |
218 | else { |
219 | $self->throw_exception( sprintf ( |
220 | "Unable to reliably select a BEFORE INSERT trigger for column %s.%s (possibilities: %s). " |
221 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
222 | $source_name, |
223 | $col, |
224 | ( join ', ', map { "'$_->{name}'" } @triggers ), |
225 | $col, |
226 | ) ); |
227 | } |
228 | } |
229 | |
230 | if ($chosen_trigger) { |
231 | my $seq_name = $chosen_trigger->{sequences}[0]; |
232 | |
233 | $seq_name = "$chosen_trigger->{schema}.$seq_name" |
234 | unless $seq_name =~ /\./; |
df6e3f5c |
235 | |
07cda1c5 |
236 | return \$seq_name if $seq_name =~ /\"/; # may already be quoted in-trigger |
df6e3f5c |
237 | return $seq_name; |
18360aed |
238 | } |
6f5f880d |
239 | |
240 | $self->throw_exception( sprintf ( |
241 | "No suitable BEFORE INSERT triggers found for column %s.%s. " |
242 | . "You need to specify the correct 'sequence' explicitly in '%s's column_info.", |
243 | $source_name, |
244 | $col, |
245 | $col, |
246 | )); |
18360aed |
247 | } |
248 | |
2e46b6eb |
249 | sub _sequence_fetch { |
250 | my ( $self, $type, $seq ) = @_; |
07cda1c5 |
251 | |
252 | # use the maker to leverage quoting settings |
253 | my $sql_maker = $self->sql_maker; |
254 | my ($id) = $self->_get_dbh->selectrow_array ($sql_maker->select('DUAL', [ ref $seq ? \"$$seq.$type" : "$seq.$type" ] ) ); |
2e46b6eb |
255 | return $id; |
256 | } |
257 | |
6dc4be0f |
258 | sub _ping { |
c2481821 |
259 | my $self = shift; |
7ba7a57d |
260 | |
6dc4be0f |
261 | my $dbh = $self->_dbh or return 0; |
7ba7a57d |
262 | |
6dc4be0f |
263 | local $dbh->{RaiseError} = 1; |
ecdf1ac8 |
264 | local $dbh->{PrintError} = 0; |
c2d7baef |
265 | |
52b420dd |
266 | return try { |
ecdf1ac8 |
267 | $dbh->do('select 1 from dual'); |
52b420dd |
268 | 1; |
ed7ab0f4 |
269 | } catch { |
52b420dd |
270 | 0; |
6dc4be0f |
271 | }; |
c2481821 |
272 | } |
273 | |
d789fa99 |
274 | sub _dbh_execute { |
275 | my $self = shift; |
276 | my ($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) = @_; |
277 | |
87560ef9 |
278 | my (@res, $tried); |
cca282b6 |
279 | my $want = wantarray; |
4f661051 |
280 | my $next = $self->next::can; |
87560ef9 |
281 | do { |
52b420dd |
282 | try { |
dd415de8 |
283 | my $exec = sub { $self->$next($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) }; |
284 | |
cca282b6 |
285 | if (!defined $want) { |
dd415de8 |
286 | $exec->(); |
287 | } |
cca282b6 |
288 | elsif (! $want) { |
dd415de8 |
289 | $res[0] = $exec->(); |
290 | } |
291 | else { |
292 | @res = $exec->(); |
293 | } |
87560ef9 |
294 | |
295 | $tried++; |
52b420dd |
296 | } |
297 | catch { |
87560ef9 |
298 | if (! $tried and $_ =~ /ORA-01003/) { |
0f0abc97 |
299 | # ORA-01003: no statement parsed (someone changed the table somehow, |
300 | # invalidating your cursor.) |
301 | my ($sql, $bind) = $self->_prep_for_execute($op, $extra_bind, $ident, \@args); |
302 | delete $dbh->{CachedKids}{$sql}; |
d789fa99 |
303 | } |
52b420dd |
304 | else { |
305 | $self->throw_exception($_); |
306 | } |
307 | }; |
87560ef9 |
308 | } while (! $tried++); |
d789fa99 |
309 | |
cca282b6 |
310 | return wantarray ? @res : $res[0]; |
d789fa99 |
311 | } |
312 | |
a5a27e7a |
313 | sub _dbh_execute_array { |
314 | #my ($self, $sth, $tuple_status, @extra) = @_; |
315 | |
316 | # DBD::Oracle warns loudly on partial execute_array failures |
317 | local $_[1]->{PrintWarn} = 0; |
318 | |
319 | shift->next::method(@_); |
320 | } |
321 | |
7137528d |
322 | =head2 get_autoinc_seq |
323 | |
324 | Returns the sequence name for an autoincrement column |
325 | |
326 | =cut |
327 | |
18360aed |
328 | sub get_autoinc_seq { |
329 | my ($self, $source, $col) = @_; |
d4daee7b |
330 | |
373940e1 |
331 | $self->dbh_do('_dbh_get_autoinc_seq', $source, $col); |
18360aed |
332 | } |
333 | |
8f7e044c |
334 | =head2 datetime_parser_type |
335 | |
336 | This sets the proper DateTime::Format module for use with |
337 | L<DBIx::Class::InflateColumn::DateTime>. |
338 | |
9900b569 |
339 | =head2 connect_call_datetime_setup |
d2a3958e |
340 | |
341 | Used as: |
342 | |
9900b569 |
343 | on_connect_call => 'datetime_setup' |
d2a3958e |
344 | |
8384a713 |
345 | In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the session nls |
346 | date, and timestamp values for use with L<DBIx::Class::InflateColumn::DateTime> |
347 | and the necessary environment variables for L<DateTime::Format::Oracle>, which |
348 | is used by it. |
d2a3958e |
349 | |
82f6f45f |
350 | Maximum allowable precision is used, unless the environment variables have |
351 | already been set. |
d2a3958e |
352 | |
9900b569 |
353 | These are the defaults used: |
354 | |
355 | $ENV{NLS_DATE_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS'; |
356 | $ENV{NLS_TIMESTAMP_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS.FF'; |
357 | $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS.FF TZHTZM'; |
358 | |
d9e53b85 |
359 | To get more than second precision with L<DBIx::Class::InflateColumn::DateTime> |
360 | for your timestamps, use something like this: |
361 | |
362 | use Time::HiRes 'time'; |
363 | my $ts = DateTime->from_epoch(epoch => time); |
364 | |
d2a3958e |
365 | =cut |
366 | |
9900b569 |
367 | sub connect_call_datetime_setup { |
d2a3958e |
368 | my $self = shift; |
d2a3958e |
369 | |
370 | my $date_format = $ENV{NLS_DATE_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS'; |
371 | my $timestamp_format = $ENV{NLS_TIMESTAMP_FORMAT} ||= |
372 | 'YYYY-MM-DD HH24:MI:SS.FF'; |
373 | my $timestamp_tz_format = $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||= |
374 | 'YYYY-MM-DD HH24:MI:SS.FF TZHTZM'; |
375 | |
7a84c41b |
376 | $self->_do_query( |
d7a58a29 |
377 | "alter session set nls_date_format = '$date_format'" |
378 | ); |
7a84c41b |
379 | $self->_do_query( |
d7a58a29 |
380 | "alter session set nls_timestamp_format = '$timestamp_format'" |
381 | ); |
7a84c41b |
382 | $self->_do_query( |
d7a58a29 |
383 | "alter session set nls_timestamp_tz_format='$timestamp_tz_format'" |
384 | ); |
d2a3958e |
385 | } |
386 | |
5db2758d |
387 | =head2 source_bind_attributes |
388 | |
389 | Handle LOB types in Oracle. Under a certain size (4k?), you can get away |
390 | with the driver assuming your input is the deprecated LONG type if you |
391 | encode it as a hex string. That ain't gonna fly at larger values, where |
392 | you'll discover you have to do what this does. |
393 | |
394 | This method had to be overridden because we need to set ora_field to the |
395 | actual column, and that isn't passed to the call (provided by Storage) to |
396 | bind_attribute_by_data_type. |
397 | |
398 | According to L<DBD::Oracle>, the ora_field isn't always necessary, but |
399 | adding it doesn't hurt, and will save your bacon if you're modifying a |
400 | table with more than one LOB column. |
401 | |
402 | =cut |
403 | |
e6dd7b42 |
404 | sub source_bind_attributes |
5db2758d |
405 | { |
d7a58a29 |
406 | require DBD::Oracle; |
407 | my $self = shift; |
408 | my($source) = @_; |
5db2758d |
409 | |
8138f96a |
410 | my %bind_attributes = %{ $self->next::method(@_) }; |
5db2758d |
411 | |
d7a58a29 |
412 | foreach my $column ($source->columns) { |
8138f96a |
413 | my %column_bind_attrs = %{ $bind_attributes{$column} || {} }; |
5db2758d |
414 | |
8138f96a |
415 | my $data_type = $source->column_info($column)->{data_type}; |
5db2758d |
416 | |
8138f96a |
417 | if ($self->_is_lob_type($data_type)) { |
931e5d43 |
418 | if ($DBD::Oracle::VERSION eq '1.23') { |
419 | $self->throw_exception( |
420 | "BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later ". |
555cc3f4 |
421 | "version.\n\nSee: https://rt.cpan.org/Public/Bug/Display.html?id=46016\n" |
931e5d43 |
422 | ); |
423 | } |
5db2758d |
424 | |
8138f96a |
425 | $column_bind_attrs{'ora_type'} = $self->_is_text_lob_type($data_type) |
d7a58a29 |
426 | ? DBD::Oracle::ORA_CLOB() |
427 | : DBD::Oracle::ORA_BLOB() |
428 | ; |
429 | $column_bind_attrs{'ora_field'} = $column; |
430 | } |
5db2758d |
431 | |
d7a58a29 |
432 | $bind_attributes{$column} = \%column_bind_attrs; |
433 | } |
5db2758d |
434 | |
d7a58a29 |
435 | return \%bind_attributes; |
5db2758d |
436 | } |
437 | |
1816be4f |
438 | sub _svp_begin { |
d7a58a29 |
439 | my ($self, $name) = @_; |
440 | $self->_get_dbh->do("SAVEPOINT $name"); |
1816be4f |
441 | } |
442 | |
281719d2 |
443 | # Oracle automatically releases a savepoint when you start another one with the |
444 | # same name. |
445 | sub _svp_release { 1 } |
446 | |
447 | sub _svp_rollback { |
d7a58a29 |
448 | my ($self, $name) = @_; |
449 | $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name") |
281719d2 |
450 | } |
451 | |
6c0230de |
452 | =head2 relname_to_table_alias |
453 | |
454 | L<DBIx::Class> uses L<DBIx::Class::Relationship> names as table aliases in |
455 | queries. |
456 | |
457 | Unfortunately, Oracle doesn't support identifiers over 30 chars in length, so |
af0edca1 |
458 | the L<DBIx::Class::Relationship> name is shortened and appended with half of an |
459 | MD5 hash. |
6c0230de |
460 | |
461 | See L<DBIx::Class::Storage/"relname_to_table_alias">. |
462 | |
463 | =cut |
464 | |
465 | sub relname_to_table_alias { |
466 | my $self = shift; |
467 | my ($relname, $join_count) = @_; |
468 | |
469 | my $alias = $self->next::method(@_); |
470 | |
63ca94e1 |
471 | return $self->sql_maker->_shorten_identifier($alias, [$relname]); |
6c0230de |
472 | } |
473 | |
6c0bb6a7 |
474 | =head2 with_deferred_fk_checks |
475 | |
476 | Runs a coderef between: |
477 | |
478 | alter session set constraints = deferred |
479 | ... |
480 | alter session set constraints = immediate |
481 | |
b7b18f32 |
482 | to defer foreign key checks. |
483 | |
484 | Constraints must be declared C<DEFERRABLE> for this to work. |
6c0bb6a7 |
485 | |
486 | =cut |
487 | |
488 | sub with_deferred_fk_checks { |
489 | my ($self, $sub) = @_; |
b7b18f32 |
490 | |
491 | my $txn_scope_guard = $self->txn_scope_guard; |
492 | |
6c0bb6a7 |
493 | $self->_do_query('alter session set constraints = deferred'); |
54161a15 |
494 | |
b7b18f32 |
495 | my $sg = Scope::Guard->new(sub { |
496 | $self->_do_query('alter session set constraints = immediate'); |
497 | }); |
281719d2 |
498 | |
6298a324 |
499 | return |
500 | preserve_context { $sub->() } after => sub { $txn_scope_guard->commit }; |
281719d2 |
501 | } |
502 | |
c0024355 |
503 | =head1 ATTRIBUTES |
504 | |
505 | Following additional attributes can be used in resultsets. |
506 | |
6b2fbbf0 |
507 | =head2 connect_by or connect_by_nocycle |
c0024355 |
508 | |
509 | =over 4 |
510 | |
511 | =item Value: \%connect_by |
512 | |
513 | =back |
514 | |
515 | A hashref of conditions used to specify the relationship between parent rows |
516 | and child rows of the hierarchy. |
517 | |
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518 | |
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519 | connect_by => { parentid => 'prior personid' } |
520 | |
521 | # adds a connect by statement to the query: |
522 | # SELECT |
523 | # me.persionid me.firstname, me.lastname, me.parentid |
524 | # FROM |
525 | # person me |
526 | # CONNECT BY |
527 | # parentid = prior persionid |
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528 | |
c0024355 |
529 | |
6b2fbbf0 |
530 | connect_by_nocycle => { parentid => 'prior personid' } |
2ba03b16 |
531 | |
6b2fbbf0 |
532 | # adds a connect by statement to the query: |
533 | # SELECT |
534 | # me.persionid me.firstname, me.lastname, me.parentid |
535 | # FROM |
536 | # person me |
537 | # CONNECT BY NOCYCLE |
538 | # parentid = prior persionid |
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539 | |
540 | |
c0024355 |
541 | =head2 start_with |
542 | |
543 | =over 4 |
544 | |
545 | =item Value: \%condition |
546 | |
547 | =back |
548 | |
549 | A hashref of conditions which specify the root row(s) of the hierarchy. |
550 | |
551 | It uses the same syntax as L<DBIx::Class::ResultSet/search> |
552 | |
553 | start_with => { firstname => 'Foo', lastname => 'Bar' } |
554 | |
555 | # SELECT |
556 | # me.persionid me.firstname, me.lastname, me.parentid |
557 | # FROM |
558 | # person me |
559 | # START WITH |
560 | # firstname = 'foo' and lastname = 'bar' |
561 | # CONNECT BY |
562 | # parentid = prior persionid |
563 | |
564 | =head2 order_siblings_by |
565 | |
566 | =over 4 |
567 | |
568 | =item Value: ($order_siblings_by | \@order_siblings_by) |
569 | |
570 | =back |
571 | |
572 | Which column(s) to order the siblings by. |
573 | |
574 | It uses the same syntax as L<DBIx::Class::ResultSet/order_by> |
575 | |
576 | 'order_siblings_by' => 'firstname ASC' |
577 | |
578 | # SELECT |
579 | # me.persionid me.firstname, me.lastname, me.parentid |
580 | # FROM |
581 | # person me |
582 | # CONNECT BY |
583 | # parentid = prior persionid |
584 | # ORDER SIBLINGS BY |
585 | # firstname ASC |
586 | |
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587 | =head1 AUTHOR |
18360aed |
588 | |
7a84c41b |
589 | See L<DBIx::Class/CONTRIBUTORS>. |
18360aed |
590 | |
591 | =head1 LICENSE |
592 | |
593 | You may distribute this code under the same terms as Perl itself. |
594 | |
595 | =cut |
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596 | |
597 | 1; |