contains('events.php') && $page = $cache->fetch('events.php')) {
// We can handle expiring data, and serve a stale page.
print $page['html'];
// If it's more than an hour old, get a new one.
if ($page['created'] + 60 * 60 < time()) {
$events = radar_events_retrieve($client);
$html = radar_events_format($client, $events);
$cache->delete('events.php');
}
}
else {
// Generate the page and output it.
$events = radar_events_retrieve($client);
$html = radar_events_format($client, $events, true);
}
if (!empty($html)) {
// Save generated HTML into the cache.
$page = array('html' => $html, 'created' => time());
$cache->save('events.php', $page);
}
/**
* Set a filter and retrieve events matching the filter.
*
* @param \Radar\Connect\Connect $client
* The connect client.
*
* @return Radar\Connect\Event[]
* Array of radar connect events.
*/
function radar_events_retrieve(\Radar\Connect\Connect $client) {
$filter = new \Radar\Connect\Filter;
$filter->addCity('Berlin');
// Alternatives:-
//$filter->addCity('Amsterdam');
//$filter->addDate(new DateTime('tomorrow'));
//$filter->addDay();
// See docs/classes/Radar.Connect.Filter.html for full list of methods.
// Get the request.
// arguments:
// $filter - prepared above,
// $fields - array of field names to collect, empty for default
// $limit - maximum number of events to return.
$request = $client->prepareEventsRequest($filter, array(), 50);
// Execute request.
return $client->retrieve($request);
}
/**
* Create HTML of an array of events.
*
* @param \Radar\Connect\Connect $client
* The connect client.
* @param \Radar\Connect\Event[] $events
* Array of Event entities, for example response to events request.
* @param bool $output
* If HTML output should also be sent to stdout.
*
* @return string
* The HTML output.
*/
function radar_events_format(\Radar\Connect\Connect $client, array $events, $output = FALSE) {
ob_start();
ob_implicit_flush(TRUE);
$html = '';
foreach ($events as $event) {
// Title and date.
print '' . $event->getTitle() . '
';
print $event->getBody();
$dates = $event->getDates();
$date = current($dates);
print $date['start']->format('Y-m-d H:i:s');
// The groups are references. If we want to get details about
// them we actually load the group itself as well.
$groups = $client->retrieveEntityMultiple($event->getGroups());
foreach ($groups as $group) {
print '' . $group->getTitle() . '
';
}
// Just as with the groups the locations are just the references.
// So we load them here.
$locations = $client->retrieveEntityMultiple($event->getLocations());
foreach ($locations as $location) {
print '' . $location->getAddress() . '
';
}
// Yep and the categories, and topics.
$categories = $client->retrieveEntityMultiple($event->getCategories());
$category_names = array();
foreach ($categories as $category) {
$category_names[] = $category->getTitle();
}
if (! empty($category_names)) {
print 'Categories: ' . implode(', ', $category_names);
}
$topics = $client->retrieveEntityMultiple($event->getTopics());
$topic_names = array();
foreach ($topics as $topic) {
$topic_names[] = $topic->getTitle();
}
if (! empty($topic_names)) {
print '
Topics: ' . implode(', ', $topic_names);
}
// Outputs the HTML if requested.
$html .= ob_get_contents();
if ($output) {
ob_flush();
}
else {
ob_clean();
}
}
ob_end_clean();
return $html;
}