1 package DBIx::Class::Storage::DBI::Sybase::NoBindVars;
5 DBIx::Class::Storage::DBI::NoBindVars
6 DBIx::Class::Storage::DBI::Sybase
13 $self->disable_sth_caching(1);
16 sub _dbh_last_insert_id {
17 my ($self, $dbh, $source, $col) = @_;
19 # @@identity works only if not using placeholders
20 # Should this query be cached?
21 return ($dbh->selectrow_array('select @@identity'))[0];
24 my $number = sub { Scalar::Util::looks_like_number($_[0]) };
26 my $decimal = sub { $_[0] =~ /^ [-+]? \d+ (?:\.\d*)? \z/x };
29 int => sub { $_[0] =~ /^ [-+]? \d+ \z/x },
30 bit => => sub { $_[0] =~ /^[01]\z/ },
31 money => sub { $_[0] =~ /^\$ \d+ (?:\.\d*)? \z/x },
39 sub should_quote_value {
41 my ($type, $value) = @_;
43 return $self->next::method(@_) if not defined $value or not defined $type;
45 if (my $key = List::Util::first { $type =~ /$_/i } keys %noquote) {
46 return 0 if $noquote{$key}->($value);
47 } elsif($self->is_datatype_numeric($type) && $number->($value)) {
51 ## try to guess based on value
53 # return 0 if $number->($value) || $noquote->{money}->($value);
56 return $self->next::method(@_);
63 DBIx::Class::Storage::DBI::Sybase::NoBindVars - Storage::DBI subclass for Sybase
64 without placeholder support
68 If you're using this driver than your version of Sybase does not support
69 placeholders, or your version of L<DBD::Sybase> was compiled with FreeTDS rather
70 than the Sybase OpenClient libraries. You can check with:
72 $dbh->{syb_dynamic_supported}
74 To see if you are using FreeTDS, run:
76 perl -MDBI -le 'my $dbh = DBI->connect($dsn, $user, $pass); print $dbh->{syb_oc_version}'
78 You can also enable this driver explicitly using:
80 my $schema = SchemaClass->clone;
81 $schema->storage_type('::DBI::Sybase::NoBindVars');
82 $schema->connect($dsn, $user, $pass, \%opts);
84 See the discussion in L<< DBD::Sybase/Using ? Placeholders & bind parameters to
85 $sth->execute >> for details on the pros and cons of using placeholders.
87 One advantage of not using placeholders is that C<select @@identity> will work
88 for obtainging the last insert id of an C<IDENTITY> column, instead of having to
89 do C<select max(col)> as the base Sybase driver does.
91 When using this driver, bind variables will be interpolated (properly quoted of
92 course) into the SQL query itself, without using placeholders.
94 The caching of prepared statements is also explicitly disabled, as the
95 interpolation renders it useless.
99 See L<DBIx::Class/CONTRIBUTORS>.
103 You may distribute this code under the same terms as Perl itself.