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);
+ $self->unsafe_insert(1); # there is nothing unsafe as the
+ # last_insert_id mechanism is different
+ # without bindvars
+}
+
+# this works when NOT using placeholders
+sub _fetch_identity_sql { 'SELECT @@IDENTITY' }
+
+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 interpolate_unquoted {
+ my $self = shift;
+ my ($type, $value) = @_;
-sub _dbh_last_insert_id {
- my ($self, $dbh, $source, $col) = @_;
+ return $self->next::method(@_) if not defined $value or not defined $type;
- # @@identity works only if not using placeholders
- # Should this query be cached?
- return ($dbh->selectrow_array('select @@identity'))[0];
+ if (my $key = List::Util::first { $type =~ /$_/i } keys %noquote) {
+ return 1 if $noquote{$key}->($value);
+ }
+ elsif ($self->is_datatype_numeric($type) && $number->($value)) {
+ return 1;
+ }
+
+ return $self->next::method(@_);
+}
+
+sub _prep_interpolated_value {
+ my ($self, $type, $value) = @_;
+
+ if ($type =~ /money/i && defined $value) {
+ # change a ^ not followed by \$ to a \$
+ $value =~ s/^ (?! \$) /\$/x;
+ }
+
+ return $value;
}
1;
=head1 DESCRIPTION
-If you're using this driver than your version of Sybase does not support
-placeholders. You can check with:
-
- $dbh->{syb_dynamic_supported}
+If you're using this driver than your version of Sybase, or the libraries you
+use to connect to it, do not support placeholders.
You can also enable this driver explicitly using:
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.
+do C<select max(col)> in a transaction 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.