1package DBIx::Class::Schema::Loader::DBI::Oracle; 2 3use strict; 4use warnings; 5use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault'; 6use mro 'c3'; 7use Try::Tiny; 8use namespace::clean; 9 10our $VERSION = '0.07033'; 11 12=head1 NAME 13 14DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI 15Oracle Implementation. 16 17=head1 DESCRIPTION 18 19See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. 20 21=cut 22 23sub _setup { 24 my $self = shift; 25 26 $self->next::method(@_); 27 28 my ($current_schema) = $self->dbh->selectrow_array('SELECT USER FROM DUAL'); 29 30 $self->db_schema([ $current_schema ]) unless $self->db_schema; 31 32 if (@{ $self->db_schema } == 1 && $self->db_schema->[0] ne '%' 33 && lc($self->db_schema->[0]) ne lc($current_schema)) { 34 $self->dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema->[0]); 35 } 36 37 if (not defined $self->preserve_case) { 38 $self->preserve_case(0); 39 } 40 elsif ($self->preserve_case) { 41 $self->schema->storage->sql_maker->quote_char('"'); 42 $self->schema->storage->sql_maker->name_sep('.'); 43 } 44} 45 46sub _build_name_sep { '.' } 47 48sub _system_schemas { 49 my $self = shift; 50 51 # From http://www.adp-gmbh.ch/ora/misc/known_schemas.html 52 53 return ($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/); 54} 55 56sub _system_tables { 57 my $self = shift; 58 59 return ($self->next::method(@_), 'PLAN_TABLE'); 60} 61 62sub _dbh_tables { 63 my ($self, $schema) = @_; 64 65 return $self->dbh->tables(undef, $schema, '%', 'TABLE,VIEW'); 66} 67 68sub _filter_tables { 69 my $self = shift; 70 71 # silence a warning from older DBD::Oracles in tests 72 my $warn_handler = $SIG{__WARN__} || sub { warn @_ }; 73 local $SIG{__WARN__} = sub { 74 $warn_handler->(@_) 75 unless $_[0] =~ /^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/; 76 }; 77 78 return $self->next::method(@_); 79} 80 81sub _table_fk_info { 82 my $self = shift; 83 my ($table) = @_; 84 85 my $rels = $self->next::method(@_); 86 87 my $deferrable_sth = $self->dbh->prepare_cached(<<'EOF'); 88select deferrable from all_constraints 89where owner = ? and table_name = ? and constraint_name = ? 90EOF 91 92 foreach my $rel (@$rels) { 93 # Oracle does not have update rules 94 $rel->{attrs}{on_update} = 'NO ACTION';; 95 96 # DBD::Oracle's foreign_key_info does not return DEFERRABILITY, so we get it ourselves 97 my ($deferrable) = $self->dbh->selectrow_array( 98 $deferrable_sth, undef, $table->schema, $table->name, $rel->{_constraint_name} 99 ); 100 101 $rel->{attrs}{is_deferrable} = $deferrable && $deferrable =~ /^DEFERRABLE/i ? 1 : 0; 102 } 103 104 return $rels; 105} 106 107sub _table_uniq_info { 108 my ($self, $table) = @_; 109 110 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1); 111SELECT ac.constraint_name, acc.column_name 112FROM all_constraints ac, all_cons_columns acc 113WHERE acc.table_name=? AND acc.owner = ? 114 AND ac.table_name = acc.table_name AND ac.owner = acc.owner 115 AND acc.constraint_name = ac.constraint_name 116 AND ac.constraint_type='U' 117ORDER BY acc.position 118EOF 119 120 $sth->execute($table->name, $table->schema); 121 122 my %constr_names; 123 124 while(my $constr = $sth->fetchrow_arrayref) { 125 my $constr_name = $self->_lc($constr->[0]); 126 my $constr_col = $self->_lc($constr->[1]); 127 push @{$constr_names{$constr_name}}, $constr_col; 128 } 129 130 my @uniqs = map { [ $_ => $constr_names{$_} ] } keys %constr_names; 131 return \@uniqs; 132} 133 134sub _table_comment { 135 my $self = shift; 136 my ($table) = @_; 137 138 my $table_comment = $self->next::method(@_); 139 140 return $table_comment if $table_comment; 141 142 ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name); 143SELECT comments FROM all_tab_comments 144WHERE owner = ? 145 AND table_name = ? 146 AND (table_type = 'TABLE' OR table_type = 'VIEW') 147EOF 148 149 return $table_comment 150} 151 152sub _column_comment { 153 my $self = shift; 154 my ($table, $column_number, $column_name) = @_; 155 156 my $column_comment = $self->next::method(@_); 157 158 return $column_comment if $column_comment; 159 160 ($column_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, $self->_uc($column_name)); 161SELECT comments FROM all_col_comments 162WHERE owner = ? 163 AND table_name = ? 164 AND column_name = ? 165EOF 166 167 return $column_comment 168} 169 170sub _columns_info_for { 171 my $self = shift; 172 my ($table) = @_; 173 174 my $result = $self->next::method(@_); 175 176 local $self->dbh->{LongReadLen} = 1_000_000; 177 local $self->dbh->{LongTruncOk} = 1; 178 179 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1); 180SELECT trigger_body 181FROM all_triggers 182WHERE table_name = ? AND table_owner = ? 183AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%' 184EOF 185 186 $sth->execute($table->name, $table->schema); 187 188 while (my ($trigger_body) = $sth->fetchrow_array) { 189 if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:\."?(\w+)"?)?"?(\w+)"?\.nextval/i) { 190 if (my ($col_name) = $trigger_body =~ /:new\.(\w+)/i) { 191 $col_name = $self->_lc($col_name); 192 193 $result->{$col_name}{is_auto_increment} = 1; 194 195 $seq_schema = $self->_lc($seq_schema || $table->schema); 196 $seq_name = $self->_lc($seq_name); 197 198 $result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name; 199 } 200 } 201 } 202 203 while (my ($col, $info) = each %$result) { 204 no warnings 'uninitialized'; 205 206 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1); 207SELECT data_type, data_length 208FROM all_tab_columns 209WHERE column_name = ? AND table_name = ? AND owner = ? 210EOF 211 $sth->execute($self->_uc($col), $table->name, $table->schema); 212 my ($data_type, $data_length) = $sth->fetchrow_array; 213 $sth->finish; 214 $data_type = lc $data_type; 215 216 if ($data_type =~ /^(?:n(?:var)?char2?|u?rowid|nclob|timestamp\(\d+\)(?: with(?: local)? time zone)?|binary_(?:float|double))\z/i) { 217 $info->{data_type} = $data_type; 218 219 if ($data_type =~ /^u?rowid\z/i) { 220 $info->{size} = $data_length; 221 } 222 } 223 224 if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) { 225 delete $info->{size}; 226 } 227 228 if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) { 229 if (ref $info->{size}) { 230 $info->{size} = $info->{size}[0] / 8; 231 } 232 else { 233 $info->{size} = $info->{size} / 2; 234 } 235 } 236 elsif ($info->{data_type} =~ /^(?:var)?char2?\z/i) { 237 if (ref $info->{size}) { 238 $info->{size} = $info->{size}[0]; 239 } 240 } 241 elsif (lc($info->{data_type}) =~ /^(?:number|decimal)\z/i) { 242 $info->{original}{data_type} = 'number'; 243 $info->{data_type} = 'numeric'; 244 245 if (try { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) { 246 $info->{original}{size} = $info->{size}; 247 248 $info->{data_type} = 'integer'; 249 delete $info->{size}; 250 } 251 } 252 elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) { 253 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig; 254 255 if ($precision == 6) { 256 delete $info->{size}; 257 } 258 else { 259 $info->{size} = $precision; 260 } 261 } 262 elsif ($info->{data_type} =~ /timestamp/i && ref $info->{size} && $info->{size}[0] == 0) { 263 my $size = $info->{size}[1]; 264 delete $info->{size}; 265 $info->{size} = $size unless $size == 6; 266 } 267 elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) { 268 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig; 269 270 if ($precision == 2) { 271 delete $info->{size}; 272 } 273 else { 274 $info->{size} = $precision; 275 } 276 } 277 elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) { 278 $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig; 279 280 if ($day_precision == 2 && $second_precision == 6) { 281 delete $info->{size}; 282 } 283 else { 284 $info->{size} = [ $day_precision, $second_precision ]; 285 } 286 } 287 elsif ($info->{data_type} =~ /^interval year to month\z/i && ref $info->{size}) { 288 my $precision = $info->{size}[0]; 289 290 if ($precision == 2) { 291 delete $info->{size}; 292 } 293 else { 294 $info->{size} = $precision; 295 } 296 } 297 elsif ($info->{data_type} =~ /^interval day to second\z/i && ref $info->{size}) { 298 if ($info->{size}[0] == 2 && $info->{size}[1] == 6) { 299 delete $info->{size}; 300 } 301 } 302 elsif (lc($info->{data_type}) eq 'float') { 303 $info->{original}{data_type} = 'float'; 304 $info->{original}{size} = $info->{size}; 305 306 if ($info->{size} <= 63) { 307 $info->{data_type} = 'real'; 308 } 309 else { 310 $info->{data_type} = 'double precision'; 311 } 312 delete $info->{size}; 313 } 314 elsif (lc($info->{data_type}) eq 'double precision') { 315 $info->{original}{data_type} = 'float'; 316 317 my $size = try { $info->{size}[0] }; 318 319 $info->{original}{size} = $size; 320 321 if ($size <= 63) { 322 $info->{data_type} = 'real'; 323 } 324 delete $info->{size}; 325 } 326 elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) { 327 delete $info->{size}; 328 } 329 elsif ($info->{data_type} eq '-9104') { 330 $info->{data_type} = 'rowid'; 331 delete $info->{size}; 332 } 333 elsif ($info->{data_type} eq '-2') { 334 $info->{data_type} = 'raw'; 335 $info->{size} = try { $info->{size}[0] / 2 }; 336 } 337 elsif (lc($info->{data_type}) eq 'date') { 338 $info->{data_type} = 'datetime'; 339 $info->{original}{data_type} = 'date'; 340 } 341 elsif (lc($info->{data_type}) eq 'binary_float') { 342 $info->{data_type} = 'real'; 343 $info->{original}{data_type} = 'binary_float'; 344 } 345 elsif (lc($info->{data_type}) eq 'binary_double') { 346 $info->{data_type} = 'double precision'; 347 $info->{original}{data_type} = 'binary_double'; 348 } 349 350 # DEFAULT could be missed by ::DBI because of ORA-24345 351 if (not defined $info->{default_value}) { 352 local $self->dbh->{LongReadLen} = 1_000_000; 353 local $self->dbh->{LongTruncOk} = 1; 354 my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1); 355SELECT data_default 356FROM all_tab_columns 357WHERE column_name = ? AND table_name = ? AND owner = ? 358EOF 359 $sth->execute($self->_uc($col), $table->name, $table->schema); 360 my ($default) = $sth->fetchrow_array; 361 $sth->finish; 362 363 # this is mostly copied from ::DBI::QuotedDefault 364 if (defined $default) { 365 s/^\s+//, s/\s+\z// for $default; 366 367 if ($default =~ /^'(.*?)'\z/) { 368 $info->{default_value} = $1; 369 } 370 elsif ($default =~ /^(-?\d.*?)\z/) { 371 $info->{default_value} = $1; 372 } 373 elsif ($default =~ /^NULL\z/i) { 374 my $null = 'null'; 375 $info->{default_value} = \$null; 376 } 377 elsif ($default ne '') { 378 my $val = $default; 379 $info->{default_value} = \$val; 380 } 381 } 382 } 383 384 if ((try { lc(${ $info->{default_value} }) }||'') eq 'sysdate') { 385 my $current_timestamp = 'current_timestamp'; 386 $info->{default_value} = \$current_timestamp; 387 388 my $sysdate = 'sysdate'; 389 $info->{original}{default_value} = \$sysdate; 390 } 391 } 392 393 return $result; 394} 395 396sub _dbh_column_info { 397 my $self = shift; 398 my ($dbh) = @_; 399 400 # try to avoid ORA-24345 401 local $dbh->{LongReadLen} = 1_000_000; 402 local $dbh->{LongTruncOk} = 1; 403 404 return $self->next::method(@_); 405} 406 407=head1 SEE ALSO 408 409L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, 410L<DBIx::Class::Schema::Loader::DBI> 411 412=head1 AUTHOR 413 414See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. 415 416=head1 LICENSE 417 418This library is free software; you can redistribute it and/or modify it under 419the same terms as Perl itself. 420 421=cut 422 4231; 424# vim:et sts=4 sw=4 tw=0: 425