1 package DBIx::Class::Storage::DBI::Sybase::NoBindVars;
5 DBIx::Class::Storage::DBI::NoBindVars
6 DBIx::Class::Storage::DBI::Sybase
11 sub _dbh_last_insert_id {
12 my ($self, $dbh, $source, $col) = @_;
14 # @@identity works only if not using placeholders
15 # Should this query be cached?
16 return ($dbh->selectrow_array('select @@identity'))[0];
19 my $number = sub { Scalar::Util::looks_like_number($_[0]) };
21 my $decimal = sub { $_[0] =~ /^ [-+]? \d+ (?:\.\d*)? \z/x };
24 int => sub { $_[0] =~ /^ [-+]? \d+ \z/x },
25 bit => => sub { $_[0] =~ /^[01]\z/ },
26 money => sub { $_[0] =~ /^\$ \d+ (?:\.\d*)? \z/x },
34 sub should_quote_data_type {
36 my ($type, $value) = @_;
38 return $self->next::method(@_) if not defined $value;
40 ## this is the correct method, but we have no type yet
41 # if (my $key = List::Util::first { $type =~ /$_/i } keys %noquote) {
42 # return 0 if $noquote{$key}->($value);
46 return 0 if Scalar::Util::looks_like_number($value) ||
47 ($value =~ /^\$(\S*)\z/ && Scalar::Util::looks_like_number($1));
49 return $self->next::method(@_);
56 DBIx::Class::Storage::DBI::Sybase::NoBindVars - Storage::DBI subclass for Sybase
57 without placeholder support
61 If you're using this driver than your version of Sybase does not support
62 placeholders. You can check with:
64 $dbh->{syb_dynamic_supported}
66 You can also enable this driver explicitly using:
68 my $schema = SchemaClass->clone;
69 $schema->storage_type('::DBI::Sybase::NoBindVars');
70 $schema->connect($dsn, $user, $pass, \%opts);
72 See the discussion in L<< DBD::Sybase/Using ? Placeholders & bind parameters to
73 $sth->execute >> for details on the pros and cons of using placeholders.
75 One advantage of not using placeholders is that C<select @@identity> will work
76 for obtainging the last insert id of an C<IDENTITY> column, instead of having to
77 do C<select max(col)> as the base Sybase driver does.
79 When using this driver, bind variables will be interpolated (properly quoted of
80 course) into the SQL query itself, without using placeholders.
82 The caching of prepared statements is also explicitly disabled, as the
83 interpolation renders it useless.
87 See L<DBIx::Class/CONTRIBUTORS>.
91 You may distribute this code under the same terms as Perl itself.