Better diagnostics in the case of missing drivers, slight ADO/ODBC refactor

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

diff --git a/lib/DBIx/Class/Storage/DBI/ODBC.pm b/lib/DBIx/Class/Storage/DBI/ODBC.pm
index 16e198e..a464b5e 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/ODBC.pm
+++ b/lib/DBIx/Class/Storage/DBI/ODBC.pm
@@ -1,22 +1,45 @@
 package DBIx::Class::Storage::DBI::ODBC;
 use strict;
 use warnings;
-
 use base qw/DBIx::Class::Storage::DBI/;
+use mro 'c3';
+
+sub _rebless { shift->_determine_connector_driver('ODBC') }
+
+# Whether or not we are connecting via the freetds ODBC driver
+sub _using_freetds {
+  my $self = shift;
+
+  my $dsn = $self->_dbi_connect_info->[0];
+
+  return 1 if (
+    ( (! ref $dsn) and $dsn =~ /driver=FreeTDS/i)
+      or
+    ( ($self->_dbh_get_info('SQL_DRIVER_NAME')||'') =~ /tdsodbc/i )
+  );
+
+  return 0;
+}
 
-sub _rebless {
-    my ($self) = @_;
-
-    my $dbtype = eval { $self->_dbh->get_info(17) };
-    unless ( $@ ) {
-        # Translate the backend name into a perl identifier
-        $dbtype =~ s/\W/_/gi;
-        my $class = "DBIx::Class::Storage::DBI::ODBC::${dbtype}";
-        eval "require $class";
-        bless $self, $class unless $@;
-    }
+# Either returns the FreeTDS version via which we are connecting, 0 if can't
+# be determined, or undef otherwise
+sub _using_freetds_version {
+  my $self = shift;
+  return undef unless $self->_using_freetds;
+  return $self->_dbh_get_info('SQL_DRIVER_VER') || 0;
 }
 
+sub _disable_odbc_array_ops {
+  my $self = shift;
+  my $dbh  = $self->_get_dbh;
+
+  if (eval { DBD::ODBC->VERSION('1.35_01') }) {
+    $dbh->{odbc_array_operations} = 0;
+  }
+  elsif (eval { DBD::ODBC->VERSION('1.33_01') }) {
+    $dbh->{odbc_disable_array_operations} = 1;
+  }
+}
 
 1;
 
@@ -24,24 +47,18 @@ sub _rebless {
 
 DBIx::Class::Storage::DBI::ODBC - Base class for ODBC drivers
 
-=head1 SYNOPSIS
-
-  # In your table classes
-  __PACKAGE__->load_components(qw/Core/);
-
-
 =head1 DESCRIPTION
 
 This class simply provides a mechanism for discovering and loading a sub-class
 for a specific ODBC backend.  It should be transparent to the user.
 
+=head1 AUTHOR
 
-=head1 AUTHORS
-
-Marc Mims C<< <marc@questright.com> >>
+See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
 
 =head1 LICENSE
 
 You may distribute this code under the same terms as Perl itself.
 
 =cut
+# vim:sts=2 sw=2: