use strict;
use warnings;
-use Carp qw/croak/;
+use base qw/DBIx::Class::Storage::DBI/;
-use base qw/DBIx::Class::Storage::DBI::MultiDistinctEmulation/;
+sub _rebless {
+ my ($self) = @_;
-# __PACKAGE__->load_components(qw/PK::Auto/);
+ my $version = eval { $self->_dbh->get_info(18); };
-sub last_insert_id {
- my ($self,$source,$col) = @_;
- my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
- my $sql = "SELECT " . $seq . ".currval FROM DUAL";
- my ($id) = $self->_dbh->selectrow_array($sql);
- return $id;
+ if ( !$@ ) {
+ my ($major, $minor, $patchlevel) = split(/\./, $version);
+
+ # Default driver
+ my $class = $major <= 8
+ ? 'DBIx::Class::Storage::DBI::Oracle::WhereJoins'
+ : 'DBIx::Class::Storage::DBI::Oracle::Generic';
+
+ # Load and rebless
+ eval "require $class";
+
+ bless $self, $class unless $@;
+ }
}
-sub get_autoinc_seq {
- my ($self,$source,$col) = @_;
-
- # look up the correct sequence automatically
- my $dbh = $self->_dbh;
- my $sql = q{
- SELECT trigger_body FROM ALL_TRIGGERS t
- WHERE t.table_name = ?
- AND t.triggering_event = 'INSERT'
- AND t.status = 'ENABLED'
- };
- # trigger_body is a LONG
- $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024);
- my $sth = $dbh->prepare($sql);
- $sth->execute( uc($source->name) );
- while (my ($insert_trigger) = $sth->fetchrow_array) {
- return uc($1) if $insert_trigger =~ m!(\w+)\.nextval!i; # col name goes here???
- }
- croak "Unable to find a sequence INSERT trigger on table '" . $source->name . "'.";
+sub _svp_begin {
+ my ($self, $name) = @_;
+
+ $self->dbh->do("SAVEPOINT $name");
}
-sub columns_info_for {
- my ($self, $table) = @_;
+# Would've implemented _svp_release here, but Oracle doesn't support it.
- $self->next::method($self, uc($table));
-}
+sub _svp_rollback {
+ my ($self, $name) = @_;
+ $self->dbh->do("ROLLBACK TO SAVEPOINT $name")
+}
1;
=head1 NAME
-DBIx::Class::Storage::DBI::Oracle - Automatic primary key class for Oracle
+DBIx::Class::Storage::DBI::Oracle - Base class for Oracle driver
=head1 SYNOPSIS
# In your table classes
- __PACKAGE__->load_components(qw/PK::Auto Core/);
- __PACKAGE__->set_primary_key('id');
- __PACKAGE__->sequence('mysequence');
+ __PACKAGE__->load_components(qw/Core/);
=head1 DESCRIPTION
-This class implements autoincrements for Oracle.
+This class simply provides a mechanism for discovering and loading a sub-class
+for a specific version Oracle backend. It should be transparent to the user.
-=head1 AUTHORS
+For Oracle major versions <= 8 it loads the ::Oracle::WhereJoins subclass,
+which unrolls the ANSI join style DBIC normally generates into entries in
+the WHERE clause for compatibility purposes. To force usage of this version
+no matter the database version, add
+
+ __PACKAGE__->storage_type('::DBI::Oracle::WhereJoins');
-Andy Grundman <andy@hybridized.org>
+to your Schema class.
+
+=head1 AUTHORS
-Scott Connelly <scottsweep@yahoo.com>
+David Jack Olrik C<< <djo@cpan.org> >>
=head1 LICENSE