Backout sybase changes

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / Sybase / Microsoft_SQL_Server.pm

diff --git a/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm b/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
index 227599c..08b1807 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
@@ -2,37 +2,46 @@ package DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server;
 
 use strict;
 use warnings;
-use mro 'c3';
+
 use base qw/
   DBIx::Class::Storage::DBI::Sybase::Base
-  DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server
-  DBIx::Class::Storage::DBI::NoBindVars
+  DBIx::Class::Storage::DBI::MSSQL
 /;
+use mro 'c3';
+
+sub _rebless {
+  my $self = shift;
+  my $dbh  = $self->_get_dbh;
+
+  if (not $self->_typeless_placeholders_supported) {
+    bless $self,
+      'DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars';
+    $self->_rebless;
+  }
+}
 
 1;
 
 =head1 NAME
 
-DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server - Storage::DBI subclass for MSSQL via
-DBD::Sybase
+DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server - Support for Microsoft
+SQL Server via DBD::Sybase
 
 =head1 SYNOPSIS
 
 This subclass supports MSSQL server connections via L<DBD::Sybase>.
 
-=head1 CAVEATS
-
-This storage driver uses L<DBIx::Class::Storage::DBI::NoBindVars> as a base.
-This means that bind variables will be interpolated (properly quoted of course)
-into the SQL query itself, without using bind placeholders.
+=head1 DESCRIPTION
 
-More importantly this means that caching of prepared statements is explicitly
-disabled, as the interpolation renders it useless.
+This driver tries to determine whether your version of L<DBD::Sybase> and
+supporting libraries (usually FreeTDS) support using placeholders, if not the
+storage will be reblessed to
+L<DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars>.
 
-The actual driver code for MSSQL is in
-L<DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server>.
+The MSSQL specific functionality is provided by
+L<DBIx::Class::Storage::DBI::MSSQL>.
 
-=head1 AUTHORS
+=head1 AUTHOR
 
 See L<DBIx::Class/CONTRIBUTORS>.