package DBIx::Class::ResultClass::HashRefInflator;
-# $me is the hashref of cols/data from the immediate resultsource
-# $rest is a deep hashref of all the data from the prefetched
-# related sources.
+use strict;
+use warnings;
-sub mk_hash {
- my ($me, $rest) = @_;
+=head1 NAME
- # to avoid emtpy has_many rels contain one empty hashref
- return if (not keys %$me);
+DBIx::Class::ResultClass::HashRefInflator
- return { %$me,
- map { ($_ => ref($rest->{$_}[0]) eq 'ARRAY' ? [ map { mk_hash(@$_) } @{$rest->{$_}} ] : mk_hash(@{$rest->{$_}}) ) } keys %$rest
- };
-}
+=head1 SYNOPSIS
+
+ my $rs = $schema->resultset('CD');
+
+ $rs->result_class('DBIx::Class::ResultClass::HashRefInflator');
+
+=head1 DESCRIPTION
+
+DBIx::Class is not built for speed: it's built for convenience and
+ease of use. But sometimes you just need to get the data, and skip the
+fancy objects. That is what this class provides.
+
+There are two ways of using this class.
+
+=over
+
+=item *
+
+Specify C<< $rs->result_class >> on a specific resultset to affect only that
+resultset (and any chained off of it); or
+
+=item *
+
+Specify C<< __PACKAGE__->result_class >> on your source object to force all
+uses of that result source to be inflated to hash-refs - this approach is not
+recommended.
+
+=back
+
+=head1 METHODS
+
+=head2 inflate_result
+
+Inflates the result and prefetched data into a hash-ref using L<mk_hash>.
+
+=cut
sub inflate_result {
my ($self, $source, $me, $prefetch) = @_;
return mk_hash($me, $prefetch);
}
+=head2 mk_hash
+
+This does all the work of inflating the (pre)fetched data.
+
+=cut
+
+sub mk_hash {
+ my ($me, $rest) = @_;
+
+ # $me is the hashref of cols/data from the immediate resultsource
+ # $rest is a deep hashref of all the data from the prefetched
+ # related sources.
+
+ # to avoid emtpy has_many rels contain one empty hashref
+ return undef if (not keys %$me);
+
+ my $def;
+
+ foreach (values %$me) {
+ if (defined $_) {
+ $def = 1;
+ last;
+ }
+ }
+ return undef unless $def;
+
+ return { %$me,
+ map {
+ ( $_ =>
+ ref($rest->{$_}[0]) eq 'ARRAY'
+ ? [ grep defined, map mk_hash(@$_), @{$rest->{$_}} ]
+ : mk_hash( @{$rest->{$_}} )
+ )
+ } keys %$rest
+ };
+}
+
1;