X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FOracle.pm;h=bf50bcc7dd21d3b285d0571af774eb3441c116b1;hb=64ae166780d0cb2b9577e506da9b9b240c146d20;hp=1cda2e337e81b4465f3bf67a84015a871319f634;hpb=dd3583f282f6807ac7857c2d6b7a3ddd85a11ab4;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/DBI/Oracle.pm b/lib/DBIx/Class/Storage/DBI/Oracle.pm
index 1cda2e3..bf50bcc 100644
--- a/lib/DBIx/Class/Storage/DBI/Oracle.pm
+++ b/lib/DBIx/Class/Storage/DBI/Oracle.pm
@@ -3,70 +3,52 @@ 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;
 
-use base qw/DBIx::Class::Storage::DBI::MultiDistinctEmulation/;
+sub _rebless {
+    my ($self) = @_;
 
-# __PACKAGE__->load_components(qw/PK::Auto/);
+    try {
+      my $version = $self->_get_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 $id;
-}
-
-sub get_autoinc_seq {
-  my ($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 '" . $source->name . "'.";
-}
+      my ($major, $minor, $patchlevel) = split(/\./, $version);
 
-sub columns_info_for {
-  my ($self, $table) = @_;
+      # Default driver
+      my $class = $major <= 8
+        ? 'DBIx::Class::Storage::DBI::Oracle::WhereJoins'
+        : 'DBIx::Class::Storage::DBI::Oracle::Generic';
 
-  $self->next::method(uc($table));
+      $self->ensure_class_loaded ($class);
+      bless $self, $class;
+    };
 }
 
-
 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
+=head1 DESCRIPTION
 
-  # In your table classes
-  __PACKAGE__->load_components(qw/PK::Auto Core/);
-  __PACKAGE__->set_primary_key('id');
-  __PACKAGE__->sequence('mysequence');
+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 DESCRIPTION
+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
 
-This class implements autoincrements for Oracle.
+  __PACKAGE__->storage_type('::DBI::Oracle::WhereJoins');
 
-=head1 AUTHORS
+to your Schema class.
 
-Andy Grundman <andy@hybridized.org>
+=head1 AUTHORS
 
-Scott Connelly <scottsweep@yahoo.com>
+David Jack Olrik C<< <djo@cpan.org> >>
 
 =head1 LICENSE