use strict;
use warnings;
-use Class::C3;
-use base qw/DBIx::Class::Storage::DBI/;
-
-use Carp::Clan qw/^DBIx::Class/;
+use base qw/
+ DBIx::Class::Storage::DBI::Sybase::Base
+ DBIx::Class::Storage::DBI::NoBindVars
+/;
+use mro 'c3';
sub _rebless {
- my $self = shift;
+ my $self = shift;
- if (ref($self) eq 'DBIx::Class::Storage::DBI::Sybase') {
my $dbtype = eval {
- @{$self->dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2]
- } || '';
-
- my $exception = $@;
- $dbtype =~ s/\W/_/gi;
- my $subclass = "DBIx::Class::Storage::DBI::Sybase::${dbtype}";
-
- if (!$exception && $dbtype && $self->load_optional_class($subclass)) {
- bless $self, $subclass;
- $self->_rebless;
- } else {
- # real Sybase
- if (not $self->dbh->{syb_dynamic_supported}) {
- bless $self, 'DBIx::Class::Storage:DBI::Sybase::NoBindVars';
- $self->_rebless;
- }
- $self->_init_date_fmt;
- }
- }
-}
-
-sub _populate_dbh {
- my $self = shift;
- $self->next::method(@_);
- $self->_init_date_fmt;
- 1;
-}
-
-{
- my $old_dbd_warned = 0;
-
- sub _init_date_fmt {
- my $self = shift;
- my $dbh = $self->_dbh;
-
- if ($dbh->can('syb_date_fmt')) {
- $dbh->syb_date_fmt('ISO_strict');
- } elsif (not $old_dbd_warned) {
- carp "Your DBD::Sybase is too old to support ".
- "DBIx::Class::InflateColumn::DateTime, please upgrade!";
- $old_dbd_warned = 1;
+ @{$self->_get_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;
+ }
}
-
- $dbh->do('set dateformat mdy');
-
- 1;
- }
}
sub _dbh_last_insert_id {
- my ($self, $dbh, $source, $col) = @_;
-
- # sorry, there's no other way!
- my $sth = $dbh->prepare_cached("select max($col) from ".$source->from);
- return ($dbh->selectrow_array($sth))[0];
+ my ($self, $dbh, $source, $col) = @_;
+ return ($dbh->selectrow_array('select @@identity'))[0];
}
-sub count {
- my $self = shift;
- my ($source, $attrs) = @_;
-
- if (not exists $attrs->{rows}) {
- return $self->next::method(@_);
- }
-
- my $offset = $attrs->{offset} || 0;
- my $total = $attrs->{rows} + $offset;
-
- my $new_attrs = $self->_copy_attributes_for_count($source, $attrs);
-
- my $first_pk = ($source->primary_columns)[0];
-
- $new_attrs->{select} = $first_pk ? "me.$first_pk" : 1;
-
- my $tmp_rs = $source->resultset_class->new($source, $new_attrs);
-
- $self->dbh->{syb_rowcount} = $total;
-
- my $count = 0;
- $count++ while $tmp_rs->cursor->next;
-
- $self->dbh->{syb_rowcount} = 0;
-
- return $count - $offset;
-}
-
-sub datetime_parser_type { "DateTime::Format::Sybase" }
-
1;
=head1 NAME
=head1 SYNOPSIS
-This subclass supports L<DBD::Sybase> for real Sybase databases. If you are
-using an MSSQL database via L<DBD::Sybase>, your storage will be reblessed to
-L<DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server>.
-
-=head1 DESCRIPTION
-
-If your version of Sybase does not support placeholders, then your storage
-will be reblessed to L<DBIx::Class::Storage::DBI::Sybase::NoBindVars>. You can
-also enable that driver explicitly, see the documentation for more details.
-
-With this driver there is unfortunately no way to get the C<last_insert_id>
-without doing a C<select max(col)>.
+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>.
-But your queries will be cached.
+=head1 CAVEATS
-=head1 DATES
+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.
-On connection C<syb_date_fmt> is set to C<ISO_strict>, e.g.:
-C<2004-08-21T14:36:48.080Z> and C<dateformat> is set to C<mdy>, e.g.:
-C<08/13/1979 18:08:55.080>.
-
-This works for both C<DATETIME> and C<SMALLDATETIME> columns, although
-C<SMALLDATETIME> columns only have minute precision.
-
-You will need the L<DateTime::Format::Sybase> module if you are going to use
-L<DBIx::Class::InflateColumn::DateTime>.
+More importantly this means that caching of prepared statements is explicitly
+disabled, as the interpolation renders it useless.
=head1 AUTHORS
-See L<DBIx::Class/CONTRIBUTORS>.
+Brandon L Black <blblack@gmail.com>
+
+Justin Hunter <justin.d.hunter@gmail.com>
=head1 LICENSE
You may distribute this code under the same terms as Perl itself.
=cut
-# vim:sts=2 sw=2: