-package # hide from PAUSE
- DBIx::Class::Storage::DBI::Sybase::NoBindVars;
+package DBIx::Class::Storage::DBI::Sybase::NoBindVars;
+use Class::C3;
use base qw/
DBIx::Class::Storage::DBI::NoBindVars
DBIx::Class::Storage::DBI::Sybase
/;
+use List::Util ();
+use Scalar::Util ();
+
+sub _rebless {
+ my $self = shift;
+ $self->disable_sth_caching(1);
+}
+
+sub _dbh_last_insert_id {
+ my ($self, $dbh, $source, $col) = @_;
+
+ # @@identity works only if not using placeholders
+ # Should this query be cached?
+ return ($dbh->selectrow_array('select @@identity'))[0];
+}
+
+my $number = sub { Scalar::Util::looks_like_number($_[0]) };
+
+my $decimal = sub { $_[0] =~ /^ [-+]? \d+ (?:\.\d*)? \z/x };
+
+my %noquote = (
+ int => sub { $_[0] =~ /^ [-+]? \d+ \z/x },
+ bit => => sub { $_[0] =~ /^[01]\z/ },
+ money => sub { $_[0] =~ /^\$ \d+ (?:\.\d*)? \z/x },
+ float => $number,
+ real => $number,
+ double => $number,
+ decimal => $decimal,
+ numeric => $decimal,
+);
+
+sub should_quote_value {
+ my $self = shift;
+ my ($type, $value) = @_;
+
+ return $self->next::method(@_) if not defined $value or not defined $type;
+
+ if (my $key = List::Util::first { $type =~ /$_/i } keys %noquote) {
+ return 0 if $noquote{$key}->($value);
+ } elsif($self->is_datatype_numeric($type) && $number->($value)) {
+ return 0;
+ }
+
+## try to guess based on value
+# elsif (not $type) {
+# return 0 if $number->($value) || $noquote->{money}->($value);
+# }
+
+ return $self->next::method(@_);
+}
1;
+
+=head1 NAME
+
+DBIx::Class::Storage::DBI::Sybase::NoBindVars - Storage::DBI subclass for Sybase
+without placeholder support
+
+=head1 DESCRIPTION
+
+If you're using this driver than your version of Sybase does not support
+placeholders, or your version of L<DBD::Sybase> is too old (you need at least
+C<1.09>. You can check with:
+
+ $dbh->{syb_dynamic_supported}
+
+You can also enable this driver explicitly using:
+
+ my $schema = SchemaClass->clone;
+ $schema->storage_type('::DBI::Sybase::NoBindVars');
+ $schema->connect($dsn, $user, $pass, \%opts);
+
+See the discussion in L<< DBD::Sybase/Using ? Placeholders & bind parameters to
+$sth->execute >> for details on the pros and cons of using placeholders.
+
+One advantage of not using placeholders is that C<select @@identity> will work
+for obtainging the last insert id of an C<IDENTITY> column, instead of having to
+do C<select max(col)> as the base Sybase driver does.
+
+When using this driver, bind variables will be interpolated (properly quoted of
+course) into the SQL query itself, without using placeholders.
+
+The caching of prepared statements is also explicitly disabled, as the
+interpolation renders it useless.
+
+=head1 AUTHORS
+
+See L<DBIx::Class/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+# vim:sts=2 sw=2: