package # Hide from PAUSE
DBIx::Class::SQLAHacks::Oracle;
-use warnings;
-use strict;
-
-use base qw( DBIx::Class::SQLAHacks );
-use Carp::Clan qw/^DBIx::Class|^SQL::Abstract/;
-
-#
-# TODO:
-# - Review by experienced DBIC/SQL:A developers :-)
-# - Problem with count and connect_by look the TODO in t/73oracle.t
-# - Rename option nocycle to connect_by_nocycle
-#
-
-sub new {
- my $self = shift;
- my %opts = (ref $_[0] eq 'HASH') ? %{$_[0]} : @_;
- push @{$opts{special_ops}}, {
- regex => qr/^prior$/i,
- handler => '_where_field_PRIOR',
- };
-
- $self->SUPER::new (\%opts);
-}
-
-sub select {
- my ($self, $table, $fields, $where, $rs_attrs, @rest) = @_;
-
- my ($sql, @bind) = $self->SUPER::select($table, $fields, $where, $rs_attrs, @rest);
- push @bind, @{$self->{_oracle_connect_by_binds}};
-
- return wantarray ? ($sql, @bind) : $sql;
-}
-
-sub _emulate_limit {
- my ( $self, $syntax, $sql, $rs_attrs, $rows, $offset ) = @_;
-
- my ($cb_sql, @cb_bind) = $self->_connect_by($rs_attrs);
- $sql .= $cb_sql;
- $self->{_oracle_connect_by_binds} = \@cb_bind;
-
- return $self->SUPER::_emulate_limit($syntax, $sql, $rs_attrs, $rows, $offset);
-}
-
-sub _connect_by {
- my ($self, $attrs) = @_;
-
- my $sql = '';
- my @bind;
-
- if ( ref($attrs) eq 'HASH' ) {
- if ( $attrs->{'start_with'} ) {
- my ($ws, @wb) = $self->_recurse_where( $attrs->{'start_with'} );
- $sql .= $self->_sqlcase(' start with ') . $ws;
- push @bind, @wb;
- }
- if ( my $connect_by = $attrs->{'connect_by'} ) {
- my ($connect_by_sql, @connect_by_sql_bind) = $self->_recurse_where( $attrs->{'connect_by'} );
- $sql .= sprintf(" %s %s",
- ( $attrs->{'nocycle'} ) ? $self->_sqlcase('connect by nocycle')
- : $self->_sqlcase('connect by'),
- $connect_by_sql,
- );
- push @bind, @connect_by_sql_bind;
- # $sql .= $self->_sqlcase(' connect by');
- # foreach my $key ( keys %$connect_by ) {
- # $sql .= " $key = " . $connect_by->{$key};
- # }
- }
- if ( $attrs->{'order_siblings_by'} ) {
- $sql .= $self->_order_siblings_by( $attrs->{'order_siblings_by'} );
- }
- }
-
- return wantarray ? ($sql, @bind) : $sql;
-}
-
-sub _order_siblings_by {
- my ( $self, $arg ) = @_;
-
- my ( @sql, @bind );
- for my $c ( $self->_order_by_chunks($arg) ) {
- $self->_SWITCH_refkind(
- $c,
- {
- SCALAR => sub { push @sql, $c },
- ARRAYREF => sub { push @sql, shift @$c; push @bind, @$c },
- }
- );
- }
-
- my $sql =
- @sql
- ? sprintf( '%s %s', $self->_sqlcase(' order siblings by'), join( ', ', @sql ) )
- : '';
-
- return wantarray ? ( $sql, @bind ) : $sql;
-}
-
-# we need to add a '=' only when PRIOR is used against a column diretly
-# i.e. when it is invoked by a special_op callback
-sub _where_field_PRIOR {
- my ($self, $lhs, $op, $rhs) = @_;
- my ($sql, @bind) = $self->_recurse_where ($rhs);
-
- $sql = sprintf ('%s = %s %s ',
- $self->_convert($self->_quote($lhs)),
- $self->_sqlcase ($op),
- $sql
- );
-
- return ($sql, @bind);
-}
+use base qw( DBIx::Class::SQLMaker::Oracle );
1;
-
-__END__
-
-=pod
-
-=head1 NAME
-
-DBIx::Class::SQLAHacks::Oracle - adds hierarchical query support for Oracle to SQL::Abstract
-
-=head1 DESCRIPTION
-
-See L<DBIx::Class::Storage::DBI::Oracle::Generic> for more informations about
-how to use hierarchical queries with DBIx::Class.
-
-=cut