$user_1 = $_POST['user_1'];
$user_2 = $_POST['user_2'];
echo $Relation->removeRequest($user_1, $user_2);
break;
case 'accept_request':
$user_1 = $_POST['user_1'];
$user_2 = $_POST['user_2'];
$info_1 = $Profile->fetchProfile($user_1);
$info_2 = $Profile->fetchProfile($user_2);
echo $Relation->acceptRequest($user_1, $user_2, $info_2['name'], $info_2['surname']);
echo $Relation->acceptRequest($user_2, $user_1, $info_1['name'], $info_1['surname']);
break;
case 'unfriend_person':
$id = $_POST['user_1'];
$other_id = $_POST['user_2'];
echo $Relation->unfriendPerson($id, $other_id);
echo $Relation->unfriendPerson($other_id, $id);
break;
case 'search_by_user':
$term = $_POST['term'];
$results = $Profile->fetchProfileByName($term);
echo json_encode($results);
break;
case 'search_by_gym':
$term = $_POST['term'];
$results = $Profile->fetchProfileByGym($term);
echo json_encode($results);
break;
case 'like_feed':
$user_id = $_POST['user_id'];
$feed_id = $_POST['feed_id'];
