1 package # hide from PAUSE
2 DBIx::Class::Relationship::Accessor;
7 use DBIx::Class::_Util qw(quote_sub perlstring);
10 our %_pod_inherit_config =
12 class_map => { 'DBIx::Class::Relationship::Accessor' => 'DBIx::Class::Relationship' }
15 sub register_relationship {
16 my ($class, $rel, $info) = @_;
17 if (my $acc_type = $info->{attrs}{accessor}) {
18 $class->add_relationship_accessor($rel => $acc_type);
20 $class->next::method($rel => $info);
23 sub add_relationship_accessor {
24 my ($class, $rel, $acc_type) = @_;
26 if ($acc_type eq 'single') {
28 my @qsub_args = ( {}, {
30 DBIC_method_is_single_relationship_accessor
31 DBIC_method_is_generated_from_resultsource_metadata
36 quote_sub "${class}::${rel}" => sprintf(<<'EOC', perlstring $rel), @qsub_args;
40 $self->set_from_related( %1$s => @_ );
41 return $self->{_relationship_data}{%1$s} = $_[0];
43 elsif (exists $self->{_relationship_data}{%1$s}) {
44 return $self->{_relationship_data}{%1$s};
47 my $rsrc = $self->result_source;
53 $rsrc->relationship_info(%1$s)->{attrs}{undef_on_null_fk}
57 $jfc = ( $rsrc->_resolve_relationship_condition(
59 foreign_alias => %1$s,
61 self_result_object => $self,
62 )->{join_free_condition} || {} )
66 grep { not defined $_ } values %%$jfc
69 my $val = $self->related_resultset( %1$s )->single;
70 return $val unless $val; # $val instead of undef so that null-objects can go through
72 return $self->{_relationship_data}{%1$s} = $val;
76 elsif ($acc_type eq 'filter') {
78 my $rsrc = $class->result_source_instance;
80 $rsrc->throw_exception("No such column '$rel' to filter")
81 unless $rsrc->has_column($rel);
83 my $f_class = $rsrc->relationship_info($rel)->{class};
85 $class->inflate_column($rel, {
87 my ($val, $self) = @_;
88 return $self->find_or_new_related($rel, {});
91 my ($val, $self) = @_;
92 $self->throw_exception("'$val' isn't a $f_class") unless $val->isa($f_class);
94 # MASSIVE FIXME - this code assumes we pointed at the PK, but the belongs_to
95 # helper does not check any of this
96 # fixup the code a bit to make things saner, but ideally 'filter' needs to
97 # be deprecated ASAP and removed shortly after
98 # Not doing so before 0.08250 however, too many things in motion already
99 my ($pk_col, @rest) = $val->result_source->_pri_cols_or_die;
100 $self->throw_exception(
101 "Relationship '$rel' of type 'filter' can not work with a multicolumn primary key on source '$f_class'"
104 my $pk_val = $val->get_column($pk_col);
106 "Unable to deflate 'filter'-type relationship '$rel' (related object "
107 . "primary key not retrieved), assuming undef instead"
108 ) if ( ! defined $pk_val and $val->in_storage );
115 # god this is horrible...
117 $rsrc->columns_info->{$rel}{accessor}
122 # because CDBI may elect to never make an accessor at all...
123 if( my $main_cref = $class->can($acc) ) {
129 DBIC_method_is_filter_relationship_accessor
130 DBIC_method_is_generated_from_resultsource_metadata
134 if( my $extra_cref = $class->can("_${acc}_accessor") ) {
139 DBIC_method_is_filter_relationship_extra_accessor
140 DBIC_method_is_generated_from_resultsource_metadata
146 elsif ($acc_type eq 'multi') {
153 DBIC_method_is_multi_relationship_accessor
154 DBIC_method_is_generated_from_resultsource_metadata
155 DBIC_method_is_indirect_sugar
161 quote_sub "${class}::${rel}", sprintf( <<'EOC', perlstring $rel ), @qsub_args;
162 DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_INDIRECT_CALLS and DBIx::Class::_Util::fail_on_internal_call;
163 DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_WANTARRAY and my $sog = DBIx::Class::_Util::fail_on_internal_wantarray;
164 shift->related_resultset(%s)->search( @_ )
168 $qsub_args[1]{attributes}[0]
169 =~ s/^DBIC_method_is_multi_relationship_accessor$/DBIC_method_is_multi_relationship_extra_accessor/
170 or die "Unexpected attr '$qsub_args[1]{attributes}[0]' ...";
173 quote_sub "${class}::${rel}_rs", sprintf( <<'EOC', perlstring $rel ), @qsub_args;
174 DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_INDIRECT_CALLS and DBIx::Class::_Util::fail_on_internal_call;
175 shift->related_resultset(%s)->search_rs( @_ )
179 quote_sub "${class}::add_to_${rel}", sprintf( <<'EOC', perlstring $rel ), @qsub_args;
180 DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_INDIRECT_CALLS and DBIx::Class::_Util::fail_on_internal_call;
181 shift->create_related( %s => @_ );
186 $class->throw_exception("No such relationship accessor type '$acc_type'");