1 package # Hide from PAUSE
2 DBIx::Class::SQLAHacks::Oracle;
4 use base qw( DBIx::Class::SQLAHacks );
5 use Carp::Clan qw/^DBIx::Class|^SQL::Abstract/;
8 my ($self, $table, $fields, $where, $order, @rest) = @_;
10 $self->{_db_specific_attrs} = pop @rest;
12 my ($sql, @bind) = $self->SUPER::select($table, $fields, $where, $order, @rest);
13 push @bind, @{$self->{_oracle_connect_by_binds}};
15 return wantarray ? ($sql, @bind) : $sql;
19 my ( $self, $syntax, $sql, $order, $rows, $offset ) = @_;
21 my ($cb_sql, @cb_bind) = $self->_connect_by();
23 $self->{_oracle_connect_by_binds} = \@cb_bind;
25 return $self->SUPER::_emulate_limit($syntax, $sql, $order, $rows, $offset);
30 my $attrs = $self->{_db_specific_attrs};
34 if ( ref($attrs) eq 'HASH' ) {
35 if ( $attrs->{'start_with'} ) {
36 my ($ws, @wb) = $self->_recurse_where( $attrs->{'start_with'} );
37 $sql .= $self->_sqlcase(' start with ') . $ws;
40 if ( my $connect_by = $attrs->{'connect_by'}) {
41 $sql .= $self->_sqlcase(' connect by');
42 foreach my $key ( keys %$connect_by ) {
43 $sql .= " $key = " . $connect_by->{$key};
46 if ( $attrs->{'order_siblings_by'} ) {
47 $sql .= $self->_order_siblings_by( $attrs->{'order_siblings_by'} );
51 return wantarray ? ($sql, @bind) : $sql;
54 sub _order_siblings_by {
58 my @vals = $ref eq 'ARRAY' ? @{$_[0]} :
59 $ref eq 'SCALAR' ? ${$_[0]} :
61 puke( "Unsupported data struct $ref for ORDER SIBILINGS BY" );
63 my $val = join ', ', map { $self->_quote($_) } @vals;
64 return $val ? $self->_sqlcase(' order siblings by')." $val" : '';
75 DBIx::Class::SQLAHacks::Oracle - adds hierarchical query support for Oracle to SQL::Abstract
79 See L<DBIx::Class::Storage::DBI::Oracle::Generic> for more informations about
80 how to use hierarchical queries with DBIx::Class.