public function putAction($request, $db)
{
if (!isset($request->user_id)) {
throw new Exception('You must be logged in to edit data', 400);
}
$event_id = $this->getItemId($request);
if (!isset($request->url_elements[4])) {
// Edit an Event
$event_mapper = new EventMapper($db, $request);
$existing_event = $event_mapper->getEventById($event_id, true);
if (!$existing_event) {
throw new Exception(sprintf('There is no event with ID "%s"', $event_id));
}
if (!$event_mapper->thisUserHasAdminOn($event_id)) {
throw new Exception('You are not an host for this event', 403);
}
// initialise a new set of fields to save
$event = array("event_id" => $event_id);
$errors = array();
$event['name'] = filter_var($request->getParameter("name"), FILTER_SANITIZE_STRING);
if (empty($event['name'])) {
$errors[] = "'name' is a required field";
}
$event['description'] = filter_var($request->getParameter("description"), FILTER_SANITIZE_STRING);
if (empty($event['description'])) {
$errors[] = "'description' is a required field";
}
$event['location'] = filter_var($request->getParameter("location"), FILTER_SANITIZE_STRING);
if (empty($event['location'])) {
$errors[] = "'location' is a required field (for virtual events, 'online' works)";
}
$start_date = strtotime($request->getParameter("start_date"));
$end_date = strtotime($request->getParameter("end_date"));
if (!$start_date || !$end_date) {
$errors[] = "Both 'start_date' and 'end_date' must be supplied in a recognised format";
} else {
// if the dates are okay, sort out timezones
$event['tz_continent'] = filter_var($request->getParameter("tz_continent"), FILTER_SANITIZE_STRING);
$event['tz_place'] = filter_var($request->getParameter("tz_place"), FILTER_SANITIZE_STRING);
try {
// make the timezone, and read in times with respect to that
$tz = new DateTimeZone($event['tz_continent'] . '/' . $event['tz_place']);
$start_date = new DateTime($request->getParameter("start_date"), $tz);
$end_date = new DateTime($request->getParameter("end_date"), $tz);
$event['start_date'] = $start_date->format('U');
$event['end_date'] = $end_date->format('U');
} catch (Exception $e) {
// the time zone isn't right
$errors[] = "The fields 'tz_continent' and 'tz_place' must be supplied and valid " . "(e.g. Europe and London)";
}
}
// How does it look? With no errors, we can proceed
if ($errors) {
throw new Exception(implode(". ", $errors), 400);
}
// optional fields - only check if we have no errors as we may need $tz
// also only update supplied fields - but DO allow saving empty ones
$href = $request->getParameter("href", false);
// returns false if the value was not supplied
if (false !== $href) {
// we got a value, filter and save it
$event['href'] = filter_var($href, FILTER_VALIDATE_URL);
}
$cfp_url = $request->getParameter("cfp_url", false);
if (false !== $cfp_url) {
// we got a value, filter and save it
$event['cfp_url'] = filter_var($cfp_url, FILTER_VALIDATE_URL);
}
$cfp_start_date = $request->getParameter("cfp_start_date", false);
if (false !== $cfp_start_date && strtotime($cfp_start_date)) {
$cfp_start_date = new DateTime($cfp_start_date, $tz);
$event['cfp_start_date'] = $cfp_start_date->format('U');
}
$cfp_end_date = $request->getParameter("cfp_end_date", false);
if (false !== $cfp_end_date && strtotime($cfp_end_date)) {
$cfp_end_date = new DateTime($cfp_end_date, $tz);
$event['cfp_end_date'] = $cfp_end_date->format('U');
}
$latitude = $request->getParameter("latitude", false);
if (false !== $latitude) {
$latitude = filter_var($latitude, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
if ($latitude) {
$event['latitude'] = $latitude;
}
}
$longitude = $request->getParameter("longitude", false);
if (false !== $longitude) {
$longitude = filter_var($longitude, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$event['longitude'] = $longitude;
}
$incoming_tag_list = $request->getParameter('tags');
if (is_array($incoming_tag_list)) {
$tags = array_map(function ($tag) {
$tag = filter_var($tag, FILTER_SANITIZE_STRING);
$tag = trim($tag);
$tag = strtolower($tag);
return $tag;
}, $incoming_tag_list);
}
$event_mapper->editEvent($event, $event_id);
if (isset($tags)) {
$event_mapper->setTags($event_id, $tags);
}
header("Location: " . $request->base . $request->path_info, null, 204);
exit;
}
}
