X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FOracle.pm;h=6dd8b724ea2d9cfdb7006c74358b435674ee683f;hb=b8e92dac9f2f65895700dbd0d0606f75b900a8e0;hp=73859c52847da4ac777791d83ed77974216262f2;hpb=34470972fbb715106e4990bab61871498dae979f;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/DBI/Oracle.pm b/lib/DBIx/Class/Storage/DBI/Oracle.pm
index 73859c5..6dd8b72 100644
--- a/lib/DBIx/Class/Storage/DBI/Oracle.pm
+++ b/lib/DBIx/Class/Storage/DBI/Oracle.pm
@@ -3,76 +3,50 @@ package DBIx::Class::Storage::DBI::Oracle;
 use strict;
 use warnings;
 
-use Carp qw/croak/;
-
 use base qw/DBIx::Class::Storage::DBI/;
+use mro 'c3';
+use Try::Tiny;
+use namespace::clean;
 
-# __PACKAGE__->load_components(qw/PK::Auto/);
+sub _rebless {
+  my ($self) = @_;
 
-sub last_insert_id {
-  my ($self, $source) = shift;
-  $self->get_autoinc_seq($source) unless $source->{_autoinc_seq};
-  my $sql = "SELECT " . $source->{_autoinc_seq} . ".currval FROM DUAL";
-  my ($id) = $self->_dbh->selectrow_array($sql);
-  return $id;  
-}
+  # Default driver
+  my $class = $self->_server_info->{normalized_dbms_version} < 9
+    ? 'DBIx::Class::Storage::DBI::Oracle::WhereJoins'
+    : 'DBIx::Class::Storage::DBI::Oracle::Generic';
 
-sub get_autoinc_seq {
-  my ($self, $source) = @_;
-  
-  # return the user-defined sequence if known
-  my $result_class = $source->result_class;
-  if ($result_class->can('sequence') and $result_class->sequence) {
-    return ($source->{_autoinc_seq} = $result_class->sequence);      
-  }
-  
-  # look up the correct sequence automatically
-  my $dbh = $self->_dbh;
-  my $sql = qq{
-    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) = $sth->fetchrow_array) {
-    if ($insert_trigger =~ m!(\w+)\.nextval!i ) {
-      $source->{_autoinc_seq} = uc($1);
-    }
-  }
-  unless ($source->{_autoinc_seq}) {
-    croak "Unable to find a sequence INSERT trigger on table '" . $self->_table_name . "'.";
-  }
+  $self->ensure_class_loaded ($class);
+  bless $self, $class;
 }
 
 1;
 
-=head1 NAME 
-
-DBIx::Class::Storage::DBI::Oracle - Automatic primary key class for Oracle
+=head1 NAME
 
-=head1 SYNOPSIS
-
-  # In your table classes
-  __PACKAGE__->load_components(qw/PK::Auto Core/);
-  __PACKAGE__->set_primary_key('id');
-  __PACKAGE__->sequence('mysequence');
+DBIx::Class::Storage::DBI::Oracle - Base class for Oracle driver
 
 =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.
+
+For Oracle major versions < 9 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
 
-=head1 AUTHORS
+  __PACKAGE__->storage_type('::DBI::Oracle::WhereJoins');
 
-Andy Grundman <andy@hybridized.org>
+to your Schema class.
 
-Scott Connelly <scottsweep@yahoo.com>
+=head1 FURTHER QUESTIONS?
 
-=head1 LICENSE
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
 
-You may distribute this code under the same terms as Perl itself.
+=head1 COPYRIGHT AND LICENSE
 
-=cut
+This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
+by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
+redistribute it and/or modify it under the same terms as the
+L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.