-package DBIx::Class::Relationship::ManyToMany;
+package # hide from PAUSE
+ DBIx::Class::Relationship::ManyToMany;
use strict;
use warnings;
sub many_to_many {
- my ($class, $meth, $rel_class, $f_class) = @_;
-
- eval "require $f_class";
-
+ my ($class, $meth, $rel, $f_rel, $rel_attrs) = @_;
{
no strict 'refs';
no warnings 'redefine';
- *{"${class}::${meth}"} =
- sub { shift->search_related($rel_class)->search_related($f_class, @_); };
+
+ my $add_meth = "add_to_${meth}";
+ my $remove_meth = "remove_from_${meth}";
+ my $set_meth = "set_${meth}";
+
+ *{"${class}::${meth}"} = sub {
+ my $self = shift;
+ my $attrs = @_ > 1 && ref $_[$#_] eq 'HASH' ? pop(@_) : {};
+ $self->search_related($rel)->search_related(
+ $f_rel, @_ > 0 ? @_ : undef, { %{$rel_attrs||{}}, %$attrs }
+ );
+ };
+
+ *{"${class}::${add_meth}"} = sub {
+ my $self = shift;
+ @_ > 0 or $self->throw_exception(
+ "${add_meth} needs an object or hashref"
+ );
+ my $source = $self->result_source;
+ my $schema = $source->schema;
+ my $rel_source_name = $source->relationship_info($rel)->{source};
+ my $rel_source = $schema->resultset($rel_source_name)->result_source;
+ my $f_rel_source_name = $rel_source->relationship_info($f_rel)->{source};
+ my $f_rel_rs = $schema->resultset($f_rel_source_name);
+ my $obj = ref $_[0]
+ ? ( ref $_[0] eq 'HASH' ? $f_rel_rs->create($_[0]) : $_[0] )
+ : ( $f_rel_rs->create({@_}) );
+ my $link_vals = @_ > 1 && ref $_[$#_] eq 'HASH' ? pop(@_) : {};
+ my $link = $self->search_related($rel)->new_result({});
+ $link->set_from_related($f_rel, $obj);
+ $link->set_columns($link_vals);
+ $link->insert();
+ };
+
+ *{"${class}::${set_meth}"} = sub {
+ my $self = shift;
+ @_ > 0 or $self->throw_exception(
+ "{$set_meth} needs a list of objects or hashrefs"
+ );
+ $self->search_related($rel, {})->delete;
+ $self->$add_meth(shift) while (defined $_[0]);
+ };
+
+ *{"${class}::${remove_meth}"} = sub {
+ my $self = shift;
+ @_ > 0 && ref $_[0] ne 'HASH'
+ or $self->throw_exception("${remove_meth} needs an object");
+ my $obj = shift;
+ my $rel_source = $self->search_related($rel)->result_source;
+ my $cond = $rel_source->relationship_info($f_rel)->{cond};
+ my $link_cond = $rel_source->resolve_condition(
+ $cond, $obj, $f_rel
+ );
+ $self->search_related($rel, $link_cond)->delete;
+ };
+
}
}