package DBIx::Class::Schema::Loader::DBI::Oracle;
use strict;
use warnings;
use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault';
use mro 'c3';
use Try::Tiny;
use namespace::clean;
our $VERSION = '0.07036';
=head1 NAME
DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI
Oracle Implementation.
=head1 DESCRIPTION
See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
=cut
sub _setup {
my $self = shift;
$self->next::method(@_);
my ($current_schema) = $self->dbh->selectrow_array('SELECT USER FROM DUAL');
$self->db_schema([ $current_schema ]) unless $self->db_schema;
if (@{ $self->db_schema } == 1 && $self->db_schema->[0] ne '%'
&& lc($self->db_schema->[0]) ne lc($current_schema)) {
$self->dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema->[0]);
}
if (not defined $self->preserve_case) {
$self->preserve_case(0);
}
elsif ($self->preserve_case) {
$self->schema->storage->sql_maker->quote_char('"');
$self->schema->storage->sql_maker->name_sep('.');
}
}
sub _build_name_sep { '.' }
sub _system_schemas {
my $self = shift;
# From http://www.adp-gmbh.ch/ora/misc/known_schemas.html
return ($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/);
}
sub _system_tables {
my $self = shift;
return ($self->next::method(@_), 'PLAN_TABLE');
}
sub _dbh_tables {
my ($self, $schema) = @_;
return $self->dbh->tables(undef, $schema, '%', 'TABLE,VIEW');
}
sub _filter_tables {
my $self = shift;
# silence a warning from older DBD::Oracles in tests
my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
local $SIG{__WARN__} = sub {
$warn_handler->(@_)
unless $_[0] =~ /^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/;
};
return $self->next::method(@_);
}
sub _table_fk_info {
my $self = shift;
my ($table) = @_;
my $rels = $self->next::method(@_);
my $deferrable_sth = $self->dbh->prepare_cached(<<'EOF');
select deferrable from all_constraints
where owner = ? and table_name = ? and constraint_name = ?
EOF
foreach my $rel (@$rels) {
# Oracle does not have update rules
$rel->{attrs}{on_update} = 'NO ACTION';;
# DBD::Oracle's foreign_key_info does not return DEFERRABILITY, so we get it ourselves
my ($deferrable) = $self->dbh->selectrow_array(
$deferrable_sth, undef, $table->schema, $table->name, $rel->{_constraint_name}
);
$rel->{attrs}{is_deferrable} = $deferrable && $deferrable =~ /^DEFERRABLE/i ? 1 : 0;
}
return $rels;
}
sub _table_uniq_info {
my ($self, $table) = @_;
my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
SELECT ac.constraint_name, acc.column_name
FROM all_constraints ac, all_cons_columns acc
WHERE acc.table_name=? AND acc.owner = ?
AND ac.table_name = acc.table_name AND ac.owner = acc.owner
AND acc.constraint_name = ac.constraint_name
AND ac.constraint_type='U'
ORDER BY acc.position
EOF
$sth->execute($table->name, $table->schema);
my %constr_names;
while(my $constr = $sth->fetchrow_arrayref) {
my $constr_name = $self->_lc($constr->[0]);
my $constr_col = $self->_lc($constr->[1]);
push @{$constr_names{$constr_name}}, $constr_col;
}
my @uniqs = map { [ $_ => $constr_names{$_} ] } keys %constr_names;
return \@uniqs;
}
sub _table_comment {
my $self = shift;
my ($table) = @_;
my $table_comment = $self->next::method(@_);
return $table_comment if $table_comment;
($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name);
SELECT comments FROM all_tab_comments
WHERE owner = ?
AND table_name = ?
AND (table_type = 'TABLE' OR table_type = 'VIEW')
EOF
return $table_comment
}
sub _column_comment {
my $self = shift;
my ($table, $column_number, $column_name) = @_;
my $column_comment = $self->next::method(@_);
return $column_comment if $column_comment;
($column_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, $self->_uc($column_name));
SELECT comments FROM all_col_comments
WHERE owner = ?
AND table_name = ?
AND column_name = ?
EOF
return $column_comment
}
sub _columns_info_for {
my $self = shift;
my ($table) = @_;
my $result = $self->next::method(@_);
local $self->dbh->{LongReadLen} = 1_000_000;
local $self->dbh->{LongTruncOk} = 1;
my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
SELECT trigger_body
FROM all_triggers
WHERE table_name = ? AND table_owner = ?
AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
EOF
$sth->execute($table->name, $table->schema);
while (my ($trigger_body) = $sth->fetchrow_array) {
if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:\."?(\w+)"?)?"?(\w+)"?\.nextval/i) {
if (my ($col_name) = $trigger_body =~ /:new\.(\w+)/i) {
$col_name = $self->_lc($col_name);
$result->{$col_name}{is_auto_increment} = 1;
$seq_schema = $self->_lc($seq_schema || $table->schema);
$seq_name = $self->_lc($seq_name);
$result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
}
}
}
while (my ($col, $info) = each %$result) {
no warnings 'uninitialized';
my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
SELECT data_type, data_length
FROM all_tab_columns
WHERE column_name = ? AND table_name = ? AND owner = ?
EOF
$sth->execute($self->_uc($col), $table->name, $table->schema);
my ($data_type, $data_length) = $sth->fetchrow_array;
$sth->finish;
$data_type = lc $data_type;
if ($data_type =~ /^(?:n(?:var)?char2?|u?rowid|nclob|timestamp\(\d+\)(?: with(?: local)? time zone)?|binary_(?:float|double))\z/i) {
$info->{data_type} = $data_type;
if ($data_type =~ /^u?rowid\z/i) {
$info->{size} = $data_length;
}
}
if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) {
delete $info->{size};
}
if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
if (ref $info->{size}) {
$info->{size} = $info->{size}[0] / 8;
}
else {
$info->{size} = $info->{size} / 2;
}
}
elsif ($info->{data_type} =~ /^(?:var)?char2?\z/i) {
if (ref $info->{size}) {
$info->{size} = $info->{size}[0];
}
}
elsif (lc($info->{data_type}) =~ /^(?:number|decimal)\z/i) {
$info->{original}{data_type} = 'number';
$info->{data_type} = 'numeric';
if (try { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
$info->{original}{size} = $info->{size};
$info->{data_type} = 'integer';
delete $info->{size};
}
}
elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
if ($precision == 6) {
delete $info->{size};
}
else {
$info->{size} = $precision;
}
}
elsif ($info->{data_type} =~ /timestamp/i && ref $info->{size} && $info->{size}[0] == 0) {
my $size = $info->{size}[1];
delete $info->{size};
$info->{size} = $size unless $size == 6;
}
elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
if ($precision == 2) {
delete $info->{size};
}
else {
$info->{size} = $precision;
}
}
elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
if ($day_precision == 2 && $second_precision == 6) {
delete $info->{size};
}
else {
$info->{size} = [ $day_precision, $second_precision ];
}
}
elsif ($info->{data_type} =~ /^interval year to month\z/i && ref $info->{size}) {
my $precision = $info->{size}[0];
if ($precision == 2) {
delete $info->{size};
}
else {
$info->{size} = $precision;
}
}
elsif ($info->{data_type} =~ /^interval day to second\z/i && ref $info->{size}) {
if ($info->{size}[0] == 2 && $info->{size}[1] == 6) {
delete $info->{size};
}
}
elsif (lc($info->{data_type}) eq 'float') {
$info->{original}{data_type} = 'float';
$info->{original}{size} = $info->{size};
if ($info->{size} <= 63) {
$info->{data_type} = 'real';
}
else {
$info->{data_type} = 'double precision';
}
delete $info->{size};
}
elsif (lc($info->{data_type}) eq 'double precision') {
$info->{original}{data_type} = 'float';
my $size = try { $info->{size}[0] };
$info->{original}{size} = $size;
if ($size <= 63) {
$info->{data_type} = 'real';
}
delete $info->{size};
}
elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
delete $info->{size};
}
elsif ($info->{data_type} eq '-9104') {
$info->{data_type} = 'rowid';
delete $info->{size};
}
elsif ($info->{data_type} eq '-2') {
$info->{data_type} = 'raw';
$info->{size} = try { $info->{size}[0] / 2 };
}
elsif (lc($info->{data_type}) eq 'date') {
$info->{data_type} = 'datetime';
$info->{original}{data_type} = 'date';
}
elsif (lc($info->{data_type}) eq 'binary_float') {
$info->{data_type} = 'real';
$info->{original}{data_type} = 'binary_float';
}
elsif (lc($info->{data_type}) eq 'binary_double') {
$info->{data_type} = 'double precision';
$info->{original}{data_type} = 'binary_double';
}
# DEFAULT could be missed by ::DBI because of ORA-24345
if (not defined $info->{default_value}) {
local $self->dbh->{LongReadLen} = 1_000_000;
local $self->dbh->{LongTruncOk} = 1;
my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
SELECT data_default
FROM all_tab_columns
WHERE column_name = ? AND table_name = ? AND owner = ?
EOF
$sth->execute($self->_uc($col), $table->name, $table->schema);
my ($default) = $sth->fetchrow_array;
$sth->finish;
# this is mostly copied from ::DBI::QuotedDefault
if (defined $default) {
s/^\s+//, s/\s+\z// for $default;
if ($default =~ /^'(.*?)'\z/) {
$info->{default_value} = $1;
}
elsif ($default =~ /^(-?\d.*?)\z/) {
$info->{default_value} = $1;
}
elsif ($default =~ /^NULL\z/i) {
my $null = 'null';
$info->{default_value} = \$null;
}
elsif ($default ne '') {
my $val = $default;
$info->{default_value} = \$val;
}
}
}
if ((try { lc(${ $info->{default_value} }) }||'') eq 'sysdate') {
my $current_timestamp = 'current_timestamp';
$info->{default_value} = \$current_timestamp;
my $sysdate = 'sysdate';
$info->{original}{default_value} = \$sysdate;
}
}
return $result;
}
sub _dbh_column_info {
my $self = shift;
my ($dbh) = @_;
# try to avoid ORA-24345
local $dbh->{LongReadLen} = 1_000_000;
local $dbh->{LongTruncOk} = 1;
return $self->next::method(@_);
}
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
L<DBIx::Class::Schema::Loader::DBI>
=head1 AUTHOR
See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
=head1 LICENSE
This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
1;
# vim:et sts=4 sw=4 tw=0: