X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FSybase%2FMicrosoft_SQL_Server.pm;h=b0462f9972214f5c99abb31b3ac4b204047020e7;hb=8c4b6c50e873a2b5993d1bfe0f40763d994b7da4;hp=8a63ef915fd406db061048c59f32a705edaa19f4;hpb=98464041fda64549ac43bb13393bf4f9a53e30cb;p=dbsrgits%2FDBIx-Class-Historic.git

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 8a63ef9..b0462f9 100644
--- a/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
@@ -3,7 +3,27 @@ package DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server;
 use strict;
 use warnings;
 
-use base qw/DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server DBIx::Class::Storage::DBI::Sybase/;
+use base qw/
+  DBIx::Class::Storage::DBI::Sybase::Base
+  DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server
+  DBIx::Class::Storage::DBI::NoBindVars
+/;
+use mro 'c3';
+
+sub _rebless {
+  my $self = shift;
+  $self->disable_sth_caching(1);
+
+# LongReadLen doesn't work with MSSQL through DBD::Sybase, and the default is
+# huge on some versions of SQL server and can cause memory problems, so we
+# fix it up here.
+  my $dbh = $self->_dbh;
+
+  my $text_size = eval { $self->_dbi_connect_info->[-1]->{LongReadLen} } ||
+    32768; # the DBD::Sybase default
+
+  $dbh->do("set textsize $text_size");
+}
 
 1;
 
@@ -14,21 +34,23 @@ DBD::Sybase
 
 =head1 SYNOPSIS
 
-This subclass supports MSSQL connected via L<DBD::Sybase>.
+This subclass supports MSSQL server connections via L<DBD::Sybase>.
 
-  $schema->storage_type('::DBI::Sybase::Microsoft_SQL_Server');
-  $schema->connect_info('dbi:Sybase:....', ...);
+=head1 CAVEATS
 
-=head1 BUGS
+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.
 
-Currently, this doesn't work right unless you call C<Class::C3::reinitialize()>
-after connecting.
+More importantly this means that caching of prepared statements is explicitly
+disabled, as the interpolation renders it useless.
 
-=head1 AUTHORS
+The actual driver code for MSSQL is in
+L<DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server>.
 
-Brandon L Black <blblack@gmail.com>
+=head1 AUTHORS
 
-Justin Hunter <justin.d.hunter@gmail.com>
+See L<DBIx::Class/CONTRIBUTORS>.
 
 =head1 LICENSE