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 = '0.07041';
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 = ?
91 foreach my $rel (@$rels) {
92 # Oracle does not have update rules
93 $rel->{attrs}{on_update} = 'NO ACTION';;
95 # DBD::Oracle's foreign_key_info does not return DEFERRABILITY, so we get it ourselves
96 my ($deferrable) = $self->dbh->selectrow_array(
97 $deferrable_sth, undef, $table->schema, $table->name, $rel->{_constraint_name}
100 $rel->{attrs}{is_deferrable} = $deferrable && $deferrable =~ /^DEFERRABLE/i ? 1 : 0;
106 sub _table_uniq_info {
107 my ($self, $table) = @_;
109 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
110 SELECT ac.constraint_name, acc.column_name
111 FROM all_constraints ac, all_cons_columns acc
112 WHERE acc.table_name=? AND acc.owner = ?
113 AND ac.table_name = acc.table_name AND ac.owner = acc.owner
114 AND acc.constraint_name = ac.constraint_name
115 AND ac.constraint_type='U'
116 ORDER BY acc.position
119 $sth->execute($table->name, $table->schema);
123 while(my $constr = $sth->fetchrow_arrayref) {
124 my $constr_name = $self->_lc($constr->[0]);
125 my $constr_col = $self->_lc($constr->[1]);
126 push @{$constr_names{$constr_name}}, $constr_col;
129 return [ map { [ $_ => $constr_names{$_} ] } sort keys %constr_names ];
136 my $table_comment = $self->next::method(@_);
138 return $table_comment if $table_comment;
140 ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name);
141 SELECT comments FROM all_tab_comments
144 AND (table_type = 'TABLE' OR table_type = 'VIEW')
147 return $table_comment
150 sub _column_comment {
152 my ($table, $column_number, $column_name) = @_;
154 my $column_comment = $self->next::method(@_);
156 return $column_comment if $column_comment;
158 ($column_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, $self->_uc($column_name));
159 SELECT comments FROM all_col_comments
165 return $column_comment
168 sub _columns_info_for {
172 my $result = $self->next::method(@_);
174 local $self->dbh->{LongReadLen} = 1_000_000;
175 local $self->dbh->{LongTruncOk} = 1;
177 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
180 WHERE table_name = ? AND table_owner = ?
181 AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
184 $sth->execute($table->name, $table->schema);
186 while (my ($trigger_body) = $sth->fetchrow_array) {
187 if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:"?(\w+)"?\.)?"?(\w+)"?\.nextval/i) {
188 if (my ($col_name) = $trigger_body =~ /:new\.(\w+)/i) {
189 $col_name = $self->_lc($col_name);
191 $result->{$col_name}{is_auto_increment} = 1;
193 $seq_schema = $self->_lc($seq_schema || $table->schema);
194 $seq_name = $self->_lc($seq_name);
196 $result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
201 # Old DBD::Oracle report the size in (UTF-16) bytes, not characters
202 my $nchar_size_factor = $DBD::Oracle::VERSION >= 1.52 ? 1 : 2;
204 while (my ($col, $info) = each %$result) {
205 no warnings 'uninitialized';
207 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
208 SELECT data_type, data_length
210 WHERE column_name = ? AND table_name = ? AND owner = ?
212 $sth->execute($self->_uc($col), $table->name, $table->schema);
213 my ($data_type, $data_length) = $sth->fetchrow_array;
215 $data_type = lc $data_type;
217 if ($data_type =~ /^(?:n(?:var)?char2?|u?rowid|nclob|timestamp\(\d+\)(?: with(?: local)? time zone)?|binary_(?:float|double))\z/i) {
218 $info->{data_type} = $data_type;
220 if ($data_type =~ /^u?rowid\z/i) {
221 $info->{size} = $data_length;
225 if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) {
226 delete $info->{size};
229 if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
230 if (ref $info->{size}) {
231 $info->{size} = $info->{size}[0] / 8;
234 $info->{size} = $info->{size} / $nchar_size_factor;
237 elsif ($info->{data_type} =~ /^(?:var)?char2?\z/i) {
238 if (ref $info->{size}) {
239 $info->{size} = $info->{size}[0];
242 elsif (lc($info->{data_type}) =~ /^(?:number|decimal)\z/i) {
243 $info->{original}{data_type} = 'number';
244 $info->{data_type} = 'numeric';
246 if (try { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
247 $info->{original}{size} = $info->{size};
249 $info->{data_type} = 'integer';
250 delete $info->{size};
253 elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
254 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
256 if ($precision == 6) {
257 delete $info->{size};
260 $info->{size} = $precision;
263 elsif ($info->{data_type} =~ /timestamp/i && ref $info->{size} && $info->{size}[0] == 0) {
264 my $size = $info->{size}[1];
265 delete $info->{size};
266 $info->{size} = $size unless $size == 6;
268 elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
269 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
271 if ($precision == 2) {
272 delete $info->{size};
275 $info->{size} = $precision;
278 elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
279 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
281 if ($day_precision == 2 && $second_precision == 6) {
282 delete $info->{size};
285 $info->{size} = [ $day_precision, $second_precision ];
288 elsif ($info->{data_type} =~ /^interval year to month\z/i && ref $info->{size}) {
289 my $precision = $info->{size}[0];
291 if ($precision == 2) {
292 delete $info->{size};
295 $info->{size} = $precision;
298 elsif ($info->{data_type} =~ /^interval day to second\z/i && ref $info->{size}) {
299 if ($info->{size}[0] == 2 && $info->{size}[1] == 6) {
300 delete $info->{size};
303 elsif (lc($info->{data_type}) eq 'float') {
304 $info->{original}{data_type} = 'float';
305 $info->{original}{size} = $info->{size};
307 if ($info->{size} <= 63) {
308 $info->{data_type} = 'real';
311 $info->{data_type} = 'double precision';
313 delete $info->{size};
315 elsif (lc($info->{data_type}) eq 'double precision') {
316 $info->{original}{data_type} = 'float';
318 my $size = try { $info->{size}[0] };
320 $info->{original}{size} = $size;
323 $info->{data_type} = 'real';
325 delete $info->{size};
327 elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
328 delete $info->{size};
330 elsif ($info->{data_type} eq '-9104') {
331 $info->{data_type} = 'rowid';
332 delete $info->{size};
334 elsif ($info->{data_type} eq '-2') {
335 $info->{data_type} = 'raw';
336 $info->{size} = try { $info->{size}[0] / 2 };
338 elsif (lc($info->{data_type}) eq 'date') {
339 $info->{data_type} = 'datetime';
340 $info->{original}{data_type} = 'date';
342 elsif (lc($info->{data_type}) eq 'binary_float') {
343 $info->{data_type} = 'real';
344 $info->{original}{data_type} = 'binary_float';
346 elsif (lc($info->{data_type}) eq 'binary_double') {
347 $info->{data_type} = 'double precision';
348 $info->{original}{data_type} = 'binary_double';
351 # DEFAULT could be missed by ::DBI because of ORA-24345
352 if (not defined $info->{default_value}) {
353 local $self->dbh->{LongReadLen} = 1_000_000;
354 local $self->dbh->{LongTruncOk} = 1;
355 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
358 WHERE column_name = ? AND table_name = ? AND owner = ?
360 $sth->execute($self->_uc($col), $table->name, $table->schema);
361 my ($default) = $sth->fetchrow_array;
364 # this is mostly copied from ::DBI::QuotedDefault
365 if (defined $default) {
366 s/^\s+//, s/\s+\z// for $default;
368 if ($default =~ /^'(.*?)'\z/) {
369 $info->{default_value} = $1;
371 elsif ($default =~ /^(-?\d.*?)\z/) {
372 $info->{default_value} = $1;
374 elsif ($default =~ /^NULL\z/i) {
376 $info->{default_value} = \$null;
378 elsif ($default ne '') {
380 $info->{default_value} = \$val;
385 if ((try { lc(${ $info->{default_value} }) }||'') eq 'sysdate') {
386 my $current_timestamp = 'current_timestamp';
387 $info->{default_value} = \$current_timestamp;
389 my $sysdate = 'sysdate';
390 $info->{original}{default_value} = \$sysdate;
397 sub _dbh_column_info {
401 # try to avoid ORA-24345
402 local $dbh->{LongReadLen} = 1_000_000;
403 local $dbh->{LongTruncOk} = 1;
405 return $self->next::method(@_);
410 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
411 L<DBIx::Class::Schema::Loader::DBI>
415 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
419 This library is free software; you can redistribute it and/or modify it under
420 the same terms as Perl itself.
425 # vim:et sts=4 sw=4 tw=0: