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 -MDBD::Sybase -le 'print grep /Sybase\./, @DynaLoader::dl_shared_objects' | xargs ldd
78 If you see C<libct.so> or similar, rather than C<libsybct.so> then you are using
81 You can also enable this driver explicitly using:
83 my $schema = SchemaClass->clone;
84 $schema->storage_type('::DBI::Sybase::NoBindVars');
85 $schema->connect($dsn, $user, $pass, \%opts);
87 See the discussion in L<< DBD::Sybase/Using ? Placeholders & bind parameters to
88 $sth->execute >> for details on the pros and cons of using placeholders.
90 One advantage of not using placeholders is that C<select @@identity> will work
91 for obtainging the last insert id of an C<IDENTITY> column, instead of having to
92 do C<select max(col)> as the base Sybase driver does.
94 When using this driver, bind variables will be interpolated (properly quoted of
95 course) into the SQL query itself, without using placeholders.
97 The caching of prepared statements is also explicitly disabled, as the
98 interpolation renders it useless.
102 See L<DBIx::Class/CONTRIBUTORS>.
106 You may distribute this code under the same terms as Perl itself.