也许这可以让你开始：
function get_loser( $winner_id ) {
global $post;
$tournament = get_connected_id( $winner_id, \'won_final\' );
$loser = get_connected_id( $tournament[\'ID\'], \'lost_final\' );
return $loser;
}
function get_connected_id( $from_id, $connected_type ) {
global $post;
$result = array(
\'ID\' => null,
\'post_title\' => null,
);
if ( null === $from_id ) return $result;
$connected = get_posts( array(
\'connected_type\' => $connected_type,
\'connected_items\' => $from_id,
\'nopaging\' => true,
)
);
if ( ! empty( $connected ) ) :
$result[\'ID\'] = $connected[0]->ID;
$result[\'post_title\'] = $connected[0]->post_title;
endif;
return $result;
}
编辑：如果你想要某个球员赢得的所有锦标赛中的所有失利球员，那么我建议你这样做：
function get_losers( $winner_id ) {
global $post;
// get all tournaments won
$tournaments = get_connected_id( $winner_id, \'won_final\' );
// this is the resulting array, init it.
$all_losers = array();
// Go through all the tournaments and find the loser
foreach( $tournaments as $tournament ):
$losers = get_connected_id( $tournament->ID, \'lost_final\' );
foreach( $losers as $loser ) :
// Here\'s a new loser, store the id and tournament id
$new_loser = array();
$new_loser[\'ID\'] = $loser->ID;
// add more fields if you like
$new_loser[\'tournament_id\'] = $tournament->ID;
$all_losers[] = $new_loser;
endforeach;
endforeach;
// We are done return the array of losers.
return $all_losers;
}
function get_connected_id( $from_id, $connected_type ) {
global $post;
$result = array(
\'ID\' => null,
\'post_title\' => null,
);
if ( null === $from_id ) return $result;
$connected = get_posts( array(
\'connected_type\' => $connected_type,
\'connected_items\' => $from_id,
\'nopaging\' => true,
)
);
return $connected;
}
