1 package # hide from PAUSE
2 DBIx::Class::Relationship::Accessor;
7 use Class::Inspector ();
9 sub register_relationship {
10 my ($class, $rel, $info) = @_;
11 if (my $acc_type = $info->{attrs}{accessor}) {
12 $class->add_relationship_accessor($rel => $acc_type);
14 $class->next::method($rel => $info);
17 sub add_relationship_accessor {
18 my ($class, $rel, $acc_type) = @_;
20 if ($acc_type eq 'single') {
21 my $rel_info = $class->relationship_info($rel);
25 $self->set_from_related($rel, @_);
26 return $self->{_relationship_data}{$rel} = $_[0];
27 } elsif (exists $self->{_relationship_data}{$rel}) {
28 return $self->{_relationship_data}{$rel};
30 my $cond = $self->result_source->resolve_condition(
31 $rel_info->{cond}, $rel, $self
33 if ($rel_info->{attrs}->{undef_on_null_fk}){
34 return unless ref($cond) eq 'HASH';
35 return if grep { not defined } values %$cond;
37 my $val = $self->find_related($rel, {}, {});
39 # this really should have been:
40 # return $val unless $val
41 # however someone might already be relying on return() as in:
42 # my @things = map { $_->might_have_acc } ($rs->all)
43 # thus keeping the quirky behavior
44 return unless defined $val;
46 return $self->{_relationship_data}{$rel} = $val;
49 } elsif ($acc_type eq 'filter') {
50 $class->throw_exception("No such column $rel to filter")
51 unless $class->has_column($rel);
52 my $f_class = $class->relationship_info($rel)->{class};
53 $class->inflate_column($rel,
55 my ($val, $self) = @_;
56 return $self->find_or_new_related($rel, {}, {});
59 my ($val, $self) = @_;
60 $self->throw_exception("$val isn't a $f_class") unless $val->isa($f_class);
61 return ($val->_ident_values)[0];
62 # WARNING: probably breaks for multi-pri sometimes. FIXME
66 } elsif ($acc_type eq 'multi') {
67 $meth{$rel} = sub { shift->search_related($rel, @_) };
68 $meth{"${rel}_rs"} = sub { shift->search_related_rs($rel, @_) };
69 $meth{"add_to_${rel}"} = sub { shift->create_related($rel, @_); };
71 $class->throw_exception("No such relationship accessor type $acc_type");
75 no warnings 'redefine';
76 foreach my $meth (keys %meth) {
77 my $name = join '::', $class, $meth;
78 *$name = Sub::Name::subname($name, $meth{$meth});