::DBI::Replicated - don't build pool/balancer from connect_info unless necessary

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

diff --git a/lib/DBIx/Class/Storage/DBI/Sybase.pm b/lib/DBIx/Class/Storage/DBI/Sybase.pm
index 84499ed..f1a8dc8 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/Sybase.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase.pm
@@ -8,10 +8,10 @@ use base qw/DBIx::Class::Storage::DBI::NoBindVars/;
 sub _rebless {
     my $self = shift;
 
-    my $dbh = $self->schema->storage->dbh;
-    my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2];
-    if ($DBMS_VERSION =~ /^Microsoft /i) {
-        my $subclass = 'DBIx::Class::Storage::DBI::Sybase::MSSQL'; 
+    my $dbtype = eval { @{$self->_dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2] };
+    unless ( $@ ) {
+        $dbtype =~ s/\W/_/gi;
+        my $subclass = "DBIx::Class::Storage::DBI::Sybase::${dbtype}";
         if ($self->load_optional_class($subclass) && !$self->isa($subclass)) {
             bless $self, $subclass;
             $self->_rebless;
@@ -31,6 +31,15 @@ This subclass supports L<DBD::Sybase> for real Sybase databases.  If
 you are using an MSSQL database via L<DBD::Sybase>, see
 L<DBIx::Class::Storage::DBI::Sybase::MSSQL>.
 
+=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.
+
+More importantly this means that caching of prepared statements is explicitly
+disabled, as the interpolation renders it useless.
+
 =head1 AUTHORS
 
 Brandon L Black <blblack@gmail.com>