function em_display_event_occurrences($format = '', $args = array())
{
$occurrences = em_get_occurrences();
$all_day_event = em_is_all_day();
$html = '';
// default args
$defaults = array('separator' => ' - ', 'format' => 'link', 'before' => '', 'after' => '', 'show_author_link' => false, 'echo' => true);
$args = apply_filters('em_display_event_occurrences_args', wp_parse_args($args, $defaults));
// date format options
$options = get_option('events_maker_general');
$date_format = $options['datetime_format']['date'];
$time_format = $options['datetime_format']['time'];
// if format was set, use it
if (!empty($format) && is_array($format)) {
$date_format = !empty($format['date']) ? $format['date'] : $date_format;
$time_format = !empty($format['time']) ? $format['time'] : $time_format;
}
// generate output
$html .= $args['before'];
if (!empty($occurrences)) {
foreach ($occurrences as $date) {
// is all day
if ($all_day_event && !empty($date['start']) && !empty($date['end'])) {
// format date (date only)
$date['start'] = em_format_date($date['start'], 'date', $date_format);
$date['end'] = em_format_date($date['end'], 'date', $date_format);
// one day only
if ($date['start'] === $date['end']) {
$date_output = $date['start'];
} else {
$date_output = implode(' ' . $args['separator'] . ' ', $date);
}
} elseif (!$all_day_event && !empty($date['start']) && !empty($date['end'])) {
// one day only
if (em_format_date($date['start'], 'date') === em_format_date($date['end'], 'date')) {
$date_output = em_format_date($date['start'], 'datetime', $format) . ' ' . $args['separator'] . ' ' . em_format_date($date['end'], 'time', $format);
} else {
$date_output = em_format_date($date['start'], 'datetime', $format) . ' ' . $args['separator'] . ' ' . em_format_date($date['end'], 'datetime', $format);
}
} else {
$date_output = em_format_date($date['start'], 'datetime', $format) . ' ' . $args['separator'] . ' ' . em_format_date($date['end'], 'datetime', $format);
}
// output format
if ($args['format'] == 'link') {
$html .= sprintf('<span class="entry-date date"><a href="%1$s" rel="bookmark"><abbr class="dtstart" title="%2$s"></abbr><abbr class="dtend" title="%3$s"></abbr>%4$s</a></span>', esc_url(get_permalink()), esc_attr($date['start']), esc_attr($date['end']), esc_html($date_output));
} else {
$html .= sprintf('<span class="entry-date date"><abbr class="dtstart" title="%1$s"></abbr><abbr class="dtend" title="%2$s"></abbr>%3$s</span>', esc_attr($date['start']), esc_attr($date['end']), esc_html($date_output));
}
}
}
// author link
if ($args['show_author_link'] === true) {
$html .= sprintf('<span class="byline"><span class="author vcard"><a class="url fn n" href="%1$s" rel="author">%2$s</a></span></span>', esc_url(get_author_posts_url(get_the_author_meta('ID'))), get_the_author());
}
$html .= $args['after'];
$html = apply_filters('em_display_event_occurrences', $html);
if ($args['echo'] === true) {
echo $html;
} else {
return $html;
}
}
/**
* Get event next occurrence.
*
* @param int $post_id
* @uses em_is_recurring()
* @uses em_get_occurrences()
* @return array
*/
function em_get_next_occurrence($post_id = 0)
{
$post_id = (int) (empty($post_id) ? get_the_ID() : $post_id);
if (empty($post_id)) {
return false;
}
// is this a reccuring event?
if (!em_is_recurring($post_id)) {
return false;
}
$occurence = em_get_occurrences($post_id, 'future');
if (empty($occurence[0])) {
return false;
}
return apply_filters('em_get_next_occurrence', $occurence[0], $post_id);
}
/**
* Generate iCal file content.
*/
public function generate_ical_feed($query, $item)
{
$events = array();
$output = '';
switch ($query) {
case 'single':
$args = array('posts_per_page' => 1, 'no_found_rows' => true, 'name' => $item);
$feedname = 'single-event-' . $item;
break;
case 'post_type':
$args = array('posts_per_page' => -1);
$feedname = 'events';
break;
case 'event-category':
case 'event-tag':
case 'event-location':
case 'event-organizer':
$args = array('posts_per_page' => -1, 'tax_query' => array(array('taxonomy' => $query, 'field' => 'slug', 'terms' => $item)));
$feedname = $query . '-' . $item;
break;
}
$args = apply_filters('em_icl_feed_query_args', array_merge($args, array('post_type' => 'event', 'suppress_filters' => false, 'event_show_past_events' => false, 'event_show_occurrences' => false, 'orderby' => 'event_start_date', 'order' => 'asc')));
// get events data
$events = get_posts($args);
// events query
if (!empty($events)) {
foreach ($events as $event) {
// get the event date
$start_date = get_post_meta($event->ID, '_event_start_date', true);
$end_date = get_post_meta($event->ID, '_event_end_date', true);
// convert to gmt, all day
if (em_is_all_day($event->ID)) {
$event_start = date('Ymd', strtotime(get_gmt_from_date(date('Y-m-d H:i:s', strtotime($start_date)))));
$event_end = date('Ymd', strtotime(get_gmt_from_date(date('Y-m-d H:i:s', strtotime($end_date)))));
} else {
$event_start = date('Ymd\\THis\\Z', strtotime(get_gmt_from_date(date('Y-m-d H:i:s', strtotime($start_date)))));
$event_end = date('Ymd\\THis\\Z', strtotime(get_gmt_from_date(date('Y-m-d H:i:s', strtotime($end_date)))));
}
// get categories, if available
if ($categories = wp_get_post_terms($event->ID, 'event-category', array('fields' => 'names'))) {
if (!empty($categories) && is_array($categories) && !is_wp_error($categories)) {
$categories_output = "CATEGORIES:" . $this->escape_string(implode(',', (array) $categories)) . "\r\n";
}
}
// get location, if available
if ($location = em_get_locations_for($event->ID)) {
$location_output = "LOCATION:" . $location[0]->name . " ";
$location_meta = array();
if (!empty($location[0]->location_meta)) {
foreach ($location[0]->location_meta as $key => $value) {
if (in_array($key, array('address', 'city', 'state', 'zip', 'country')) && !empty($value)) {
$location_meta[] = $this->escape_string(esc_attr($value));
}
}
$location_output .= implode(', ', $location_meta);
}
$location_output .= "\r\n";
}
// get organizer, if available
if ($organizer = em_get_organizers_for($event->ID)) {
$organizer_meta = array();
if (!empty($organizer[0]->organizer_meta)) {
$organizer_output = "ORGANIZER;";
// contact name
if (isset($organizer[0]->organizer_meta['contact_name']) && !empty($organizer[0]->organizer_meta['contact_name'])) {
$organizer_output .= "CN=" . $this->escape_string($organizer[0]->organizer_meta['contact_name']);
// email
if (isset($organizer[0]->organizer_meta['email']) && !empty($organizer[0]->organizer_meta['email'])) {
$organizer_output .= ":MAILTO:" . $this->escape_string(esc_url($organizer[0]->organizer_meta['email']));
} else {
$organizer_output .= ";";
}
}
$organizer_output .= "\r\n";
}
}
// single event output
$output .= "BEGIN:VEVENT\r\n";
$output .= "DTEND:" . $event_end . "\r\n";
$output .= "UID:" . uniqid() . "\r\n";
$output .= "DTSTAMP:" . date('Ymd\\THis\\Z', time()) . "\r\n";
$output .= !empty($categories_output) ? $categories_output : '';
$output .= !empty($location_output) ? $location_output : '';
$output .= !empty($organizer_output) ? $organizer_output : '';
$output .= "DESCRIPTION:" . $this->escape_string(str_replace(array("\r", "\n"), " ", wp_strip_all_tags($event->post_content))) . "\r\n";
$output .= "URL;VALUE=URI:" . $this->escape_string(esc_url(get_permalink($event->ID))) . "\r\n";
$output .= "SUMMARY:" . $this->escape_string(esc_attr($event->post_title)) . "\r\n";
$output .= "DTSTART:" . $event_start . "\r\n";
// event recurrences data
if (em_is_recurring($event->ID)) {
$recurrence_data = get_post_meta($event->ID, '_event_recurrence');
// fix for recurrence settings saved as array
if (is_array($recurrence_data)) {
$recurrence_data = $recurrence_data[0];
}
// recurrence type
switch ($recurrence_data['type']) {
case 'daily':
$ocurrences = em_get_occurrences($event->ID);
$output .= "RRULE:FREQ=" . strtoupper($recurrence_data['type']) . ";INTERVAL=1;COUNT=" . count($ocurrences) . ";\r\n";
break;
case 'weekly':
$days = array('MO', 'TU', 'WE', 'TH', 'FR', 'SA', 'SU');
foreach ($recurrence_data['weekly_days'] as $key => $day) {
$byday[$key] = $days[$day - 1];
}
$output .= "RRULE:FREQ=" . strtoupper($recurrence_data['type']) . ";INTERVAL=" . $recurrence_data['repeat'] . ";BYDAY=" . implode(',', $byday) . ";UNTIL=" . date('Ymd\\THis\\Z', strtotime($recurrence_data['until'])) . ";\r\n";
break;
case 'monthly':
if ((int) $recurrence_data['monthly_day_type'] == 2) {
$days = array('MO', 'TU', 'WE', 'TH', 'FR', 'SA', 'SU');
$current_week = ceil((date('d', strtotime($event_date['start'])) - date('w', strtotime($event_date['start'])) - 1) / 7) + 1;
$monthly_output = 'BYDAY=' . $current_week . $days[date('N', strtotime($event_date['start']))] . ';';
} else {
$monthly_output = '';
}
$output .= "RRULE:FREQ=" . strtoupper($recurrence_data['type']) . ";INTERVAL=" . $recurrence_data['repeat'] . ";UNTIL=" . date('Ymd\\THis\\Z', strtotime($recurrence_data['until'])) . ";" . $monthly_output . "\r\n";
break;
case 'yearly':
$output .= "RRULE:FREQ=" . strtoupper($recurrence_data['type']) . ";INTERVAL=" . $recurrence_data['repeat'] . ";UNTIL=" . date('Ymd\\THis\\Z', strtotime($recurrence_data['until'])) . ";\r\n";
break;
case 'custom':
$ocurrences = em_get_occurrences($event->ID);
if (!empty($ocurrences)) {
foreach ($ocurrences as $id => $occurence) {
if (!empty($recurrence_data['separate_end_date'][(int) $id - 1])) {
/* @TODO: separate_end_date not accepting end date parameter
$seconds = strtotime($occurence['start']) - strtotime($occurence['end']);
$days = floor($seconds / 86400);
$hours = floor(($seconds - ($days * 86400)) / 3600);
$minutes = floor(($seconds - ($days * 86400) - ($hours * 3600))/60);
$output .= "RDATE;VALUE=PERIOD:".date('Ymd\THis\Z', strtotime($occurence['start']))."/".date('Ymd\THis\Z', strtotime($occurence['end'])).",".date('Ymd\THis\Z', strtotime($occurence['start']))."/PT".(!empty($days) && (int)$days > 0 ? $days."D" : '').(!empty($hours) ? $hours."H" : '').(!empty($minutes) ? $minutes."M" : '').";\r\n";
*/
$output .= "RDATE:" . date('Ymd\\THis\\Z', strtotime($occurence['start'])) . ";\r\n";
} else {
$output .= "RDATE:" . date('Ymd\\THis\\Z', strtotime($occurence['start'])) . ";\r\n";
}
}
}
break;
}
}
// single event end
$output .= "END:VEVENT\r\n";
}
// set the correct headers for this file
header('Content-type: text/calendar; charset=utf-8');
header('Content-Disposition: attachment; filename=' . apply_filters('em_icl_feed_filename', 'em-' . date('Ymd', time()) . '-' . $feedname, $query, $item) . '.ical');
echo "BEGIN:VCALENDAR\r\n";
echo "VERSION:2.0\r\n";
echo "PRODID:-//DIGITAL FACTORY//EVENTS MAKER V" . get_option('events_maker_version') . "//EN\r\n";
echo "CALSCALE:GREGORIAN\r\n";
// all events data
echo $output;
echo "END:VCALENDAR\r\n";
}
exit;
}
