$json_arr = json_decode($json_string, true);
if (!does_map_exist_by_id($student_id, $map_id)) {
deliver_response(200, "Map with id={$map_id} does not exist");
break;
}
if ($map_id != $json_arr['id']) {
deliver_response(200, "You cannot update map's id");
break;
}
if (!does_map_exist_by_id($student_id, $map_id)) {
deliver_response(200, "Map with id={$map_id} does not exist");
break;
}
if (is_array($json_arr)) {
update_map($student_id, $map_id, $json_string);
$map = get_user_maps($student_id, $map_id);
$map = xml_maps_to_json($map);
$map = json_decode($map, true);
deliver_response(200, "The map has been updated", $map);
} else {
deliver_response(400, "The request cannot be fulfilled due to bad syntax");
}
break;
case "DELETE":
if (!does_map_exist_by_id($student_id, $map_id)) {
deliver_response(200, "Map with id={$map_id} does not exist");
break;
}
delete_map($student_id, $map_id);
deliver_response(200, "The map has been deleted");
break;
function delete_map($student_id, $map_id)
{
$maps = get_user_maps($student_id);
foreach ($maps as $map) {
if ($map->id == $map_id) {
$dom = dom_import_simplexml($map);
$dom->parentNode->removeChild($dom);
}
}
$maps_as_string = xml_to_string($maps);
$query = "UPDATE Students SET MAPS='{$maps_as_string}' WHERE STUDENT_ID={$student_id};";
exec_query($query);
}
