1 package DBIx::Class::CDBICompat::HasA;
7 my ($self, $col, $f_class) = @_;
8 $self->throw( "No such column ${col}" ) unless $self->_columns->{$col};
9 eval "require $f_class";
10 my ($pri, $too_many) = keys %{ $f_class->_primaries };
11 $self->throw( "has_a only works with a single primary key; ${f_class} has more" )
13 $self->add_relationship($col, $f_class,
14 { "foreign.${pri}" => "self.${col}" },
15 { _type => 'has_a' } );
16 $self->inflate_column($col,
18 my ($val, $self) = @_;
19 return ($self->search_related($col, {}, {}))[0]
20 || $f_class->new({ $pri => $val }); },
22 my ($val, $self) = @_;
23 $self->throw("$val isn't a $f_class") unless $val->isa($f_class);
24 return ($val->_ident_values)[0] } } );