1 package DBIx::Class::Schema::Loader::DBI::Oracle;
5 use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault';
8 use DBIx::Class::Schema::Loader::Utils qw/sigwarn_silencer/;
11 our $VERSION = '0.07043';
15 DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI
16 Oracle Implementation.
20 See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
27 $self->next::method(@_);
29 my ($current_schema) = $self->dbh->selectrow_array('SELECT USER FROM DUAL');
31 $self->db_schema([ $current_schema ]) unless $self->db_schema;
33 if (@{ $self->db_schema } == 1 && $self->db_schema->[0] ne '%'
34 && lc($self->db_schema->[0]) ne lc($current_schema)) {
35 $self->dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema->[0]);
38 if (not defined $self->preserve_case) {
39 $self->preserve_case(0);
41 elsif ($self->preserve_case) {
42 $self->schema->storage->sql_maker->quote_char('"');
43 $self->schema->storage->sql_maker->name_sep('.');
47 sub _build_name_sep { '.' }
52 # From http://www.adp-gmbh.ch/ora/misc/known_schemas.html
54 return ($self->next::method(@_), qw/ANONYMOUS APEX_PUBLIC_USER APEX_030200 APPQOSSYS CTXSYS DBSNMP DIP DMSYS EXFSYS LBACSYS MDDATA MDSYS MGMT_VIEW OLAPSYS ORACLE_OCM ORDDATA ORDPLUGINS ORDSYS OUTLN SI_INFORMTN_SCHEMA SPATIAL_CSW_ADMIN_USR SPATIAL_WFS_ADMIN_USR SYS SYSMAN SYSTEM TRACESRV MTSSYS OASPUBLIC OWBSYS OWBSYS_AUDIT WEBSYS WK_PROXY WKSYS WK_TEST WMSYS XDB OSE$HTTP$ADMIN AURORA$JIS$UTILITY$ AURORA$ORB$UNAUTHENTICATED/, qr/^FLOWS_\d\d\d\d\d\d\z/);
60 return ($self->next::method(@_), 'PLAN_TABLE');
64 my ($self, $schema) = @_;
66 return $self->dbh->tables(undef, $schema, '%', 'TABLE,VIEW');
72 # silence a warning from older DBD::Oracles in tests
73 local $SIG{__WARN__} = sigwarn_silencer(
74 qr/^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/
77 return $self->next::method(@_);
84 my $rels = $self->next::method(@_);
86 my $deferrable_sth = $self->dbh->prepare_cached(<<'EOF');
87 select deferrable from all_constraints
88 where owner = ? and table_name = ? and constraint_name = ? and status = 'ENABLED'
92 foreach my $rel (@$rels) {
93 # Oracle does not have update rules
94 $rel->{attrs}{on_update} = 'NO ACTION';;
96 # DBD::Oracle's foreign_key_info does not return DEFERRABILITY, so we get it ourselves
97 # Also use this to filter out disabled foreign keys, which are returned by DBD::Oracle < 1.76
98 my $deferrable = $self->dbh->selectrow_array(
99 $deferrable_sth, undef, $table->schema, $table->name, $rel->{_constraint_name}
102 $rel->{attrs}{is_deferrable} = $deferrable =~ /^DEFERRABLE/i ? 1 : 0;
103 push @enabled_rels, $rel;
106 return \@enabled_rels;
109 sub _table_uniq_info {
110 my ($self, $table) = @_;
112 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
113 SELECT ac.constraint_name, acc.column_name
114 FROM all_constraints ac, all_cons_columns acc
115 WHERE acc.table_name=? AND acc.owner = ?
116 AND ac.table_name = acc.table_name AND ac.owner = acc.owner
117 AND acc.constraint_name = ac.constraint_name
118 AND ac.constraint_type = 'U'
119 AND ac.status = 'ENABLED'
120 ORDER BY acc.position
123 $sth->execute($table->name, $table->schema);
127 while(my $constr = $sth->fetchrow_arrayref) {
128 my $constr_name = $self->_lc($constr->[0]);
129 my $constr_col = $self->_lc($constr->[1]);
130 push @{$constr_names{$constr_name}}, $constr_col;
133 return [ map { [ $_ => $constr_names{$_} ] } sort keys %constr_names ];
140 my $table_comment = $self->next::method(@_);
142 return $table_comment if $table_comment;
144 ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name);
145 SELECT comments FROM all_tab_comments
148 AND (table_type = 'TABLE' OR table_type = 'VIEW')
151 return $table_comment
154 sub _column_comment {
156 my ($table, $column_number, $column_name) = @_;
158 my $column_comment = $self->next::method(@_);
160 return $column_comment if $column_comment;
162 ($column_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, $self->_uc($column_name));
163 SELECT comments FROM all_col_comments
169 return $column_comment
172 sub _columns_info_for {
176 my $result = $self->next::method(@_);
178 local $self->dbh->{LongReadLen} = 1_000_000;
179 local $self->dbh->{LongTruncOk} = 1;
181 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
184 WHERE table_name = ? AND table_owner = ? AND status = 'ENABLED'
185 AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
188 $sth->execute($table->name, $table->schema);
190 while (my ($trigger_body) = $sth->fetchrow_array) {
191 if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:"?(\w+)"?\.)?"?(\w+)"?\.nextval/i) {
192 if (my ($col_name) = $trigger_body =~ /:new\.(\w+)/i) {
193 $col_name = $self->_lc($col_name);
195 $result->{$col_name}{is_auto_increment} = 1;
197 $seq_schema = $self->_lc($seq_schema || $table->schema);
198 $seq_name = $self->_lc($seq_name);
200 $result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
205 # Old DBD::Oracle report the size in (UTF-16) bytes, not characters
206 my $nchar_size_factor = $DBD::Oracle::VERSION >= 1.52 ? 1 : 2;
208 while (my ($col, $info) = each %$result) {
209 no warnings 'uninitialized';
211 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
212 SELECT data_type, data_length
214 WHERE column_name = ? AND table_name = ? AND owner = ?
216 $sth->execute($self->_uc($col), $table->name, $table->schema);
217 my ($data_type, $data_length) = $sth->fetchrow_array;
219 $data_type = lc $data_type;
221 if ($data_type =~ /^(?:n(?:var)?char2?|u?rowid|nclob|timestamp\(\d+\)(?: with(?: local)? time zone)?|binary_(?:float|double))\z/i) {
222 $info->{data_type} = $data_type;
224 if ($data_type =~ /^u?rowid\z/i) {
225 $info->{size} = $data_length;
229 if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) {
230 delete $info->{size};
233 if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
234 if (ref $info->{size}) {
235 $info->{size} = $info->{size}[0] / 8;
238 $info->{size} = $info->{size} / $nchar_size_factor;
241 elsif ($info->{data_type} =~ /^(?:var)?char2?\z/i) {
242 if (ref $info->{size}) {
243 $info->{size} = $info->{size}[0];
246 elsif (lc($info->{data_type}) =~ /^(?:number|decimal)\z/i) {
247 $info->{original}{data_type} = 'number';
248 $info->{data_type} = 'numeric';
250 if (try { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
251 $info->{original}{size} = $info->{size};
253 $info->{data_type} = 'integer';
254 delete $info->{size};
257 elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
258 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
260 if ($precision == 6) {
261 delete $info->{size};
264 $info->{size} = $precision;
267 elsif ($info->{data_type} =~ /timestamp/i && ref $info->{size} && $info->{size}[0] == 0) {
268 my $size = $info->{size}[1];
269 delete $info->{size};
270 $info->{size} = $size unless $size == 6;
272 elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
273 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
275 if ($precision == 2) {
276 delete $info->{size};
279 $info->{size} = $precision;
282 elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
283 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
285 if ($day_precision == 2 && $second_precision == 6) {
286 delete $info->{size};
289 $info->{size} = [ $day_precision, $second_precision ];
292 elsif ($info->{data_type} =~ /^interval year to month\z/i && ref $info->{size}) {
293 my $precision = $info->{size}[0];
295 if ($precision == 2) {
296 delete $info->{size};
299 $info->{size} = $precision;
302 elsif ($info->{data_type} =~ /^interval day to second\z/i && ref $info->{size}) {
303 if ($info->{size}[0] == 2 && $info->{size}[1] == 6) {
304 delete $info->{size};
307 elsif (lc($info->{data_type}) eq 'float') {
308 $info->{original}{data_type} = 'float';
309 $info->{original}{size} = $info->{size};
311 if ($info->{size} <= 63) {
312 $info->{data_type} = 'real';
315 $info->{data_type} = 'double precision';
317 delete $info->{size};
319 elsif (lc($info->{data_type}) eq 'double precision') {
320 $info->{original}{data_type} = 'float';
322 my $size = try { $info->{size}[0] };
324 $info->{original}{size} = $size;
327 $info->{data_type} = 'real';
329 delete $info->{size};
331 elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
332 delete $info->{size};
334 elsif ($info->{data_type} eq '-9104') {
335 $info->{data_type} = 'rowid';
336 delete $info->{size};
338 elsif ($info->{data_type} eq '-2') {
339 $info->{data_type} = 'raw';
340 $info->{size} = try { $info->{size}[0] / 2 };
342 elsif (lc($info->{data_type}) eq 'date') {
343 $info->{data_type} = 'datetime';
344 $info->{original}{data_type} = 'date';
346 elsif (lc($info->{data_type}) eq 'binary_float') {
347 $info->{data_type} = 'real';
348 $info->{original}{data_type} = 'binary_float';
350 elsif (lc($info->{data_type}) eq 'binary_double') {
351 $info->{data_type} = 'double precision';
352 $info->{original}{data_type} = 'binary_double';
355 # DEFAULT could be missed by ::DBI because of ORA-24345
356 if (not defined $info->{default_value}) {
357 local $self->dbh->{LongReadLen} = 1_000_000;
358 local $self->dbh->{LongTruncOk} = 1;
359 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
362 WHERE column_name = ? AND table_name = ? AND owner = ?
364 $sth->execute($self->_uc($col), $table->name, $table->schema);
365 my ($default) = $sth->fetchrow_array;
368 # this is mostly copied from ::DBI::QuotedDefault
369 if (defined $default) {
370 s/^\s+//, s/\s+\z// for $default;
372 if ($default =~ /^'(.*?)'\z/) {
373 $info->{default_value} = $1;
375 elsif ($default =~ /^(-?\d.*?)\z/) {
376 $info->{default_value} = $1;
378 elsif ($default =~ /^NULL\z/i) {
380 $info->{default_value} = \$null;
382 elsif ($default ne '') {
384 $info->{default_value} = \$val;
389 if ((try { lc(${ $info->{default_value} }) }||'') eq 'sysdate') {
390 my $current_timestamp = 'current_timestamp';
391 $info->{default_value} = \$current_timestamp;
393 my $sysdate = 'sysdate';
394 $info->{original}{default_value} = \$sysdate;
401 sub _dbh_column_info {
405 # try to avoid ORA-24345
406 local $dbh->{LongReadLen} = 1_000_000;
407 local $dbh->{LongTruncOk} = 1;
409 return $self->next::method(@_);
414 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
415 L<DBIx::Class::Schema::Loader::DBI>
419 See L<DBIx::Class::Schema::Loader/AUTHORS>.
423 This library is free software; you can redistribute it and/or modify it under
424 the same terms as Perl itself.
429 # vim:et sts=4 sw=4 tw=0: