sub _has_one {
my ($class, $join_type, $rel, $f_class, $cond, $attrs) = @_;
- unless ($cond) {
+ eval "require $f_class";
+ unless (ref $cond) {
my ($pri, $too_many) = keys %{ $class->_primaries };
$class->throw( "might_have/has_one can only infer join for a single primary key; ${class} has more" )
if $too_many;
my $f_key;
- if ($f_class->_columns->{$rel}) {
+ if ($cond) {
+ $f_key = $cond;
+ } elsif ($f_class->_columns->{$rel}) {
$f_key = $rel;
} else {
($f_key, $too_many) = keys %{ $f_class->_primaries };