The function the_repeater_field()
is deprecated.
if (have_rows('parents')) {
while (have_rows('parents')) {
the_row();
if (get_sub_field('father')) {
the_sub_field('father');
}
if (get_sub_field('father') && get_sub_field('mother')) {
echo ', ';
}
if (get_sub_field('mother')) {
the_sub_field('mother');
}
}
}