/**
* Create custom recurrence dates.
*/
private function create_recurrences($post_id, $start, $end, $type, $repeat, $until, $weekly_days, $monthly_day_type)
{
$em_helper = new Events_Maker_Helper();
if ($em_helper->is_after_date($start, $end) || $em_helper->is_after_date($start, $until)) {
return;
}
$format = 'Y-m-d H:i:s';
$occurrences = array();
$diff = strtotime($end) - strtotime($start);
$finish = strtotime($until);
if ($type === 'daily') {
$repeat *= 86400;
$current = strtotime($start);
while ($current <= $finish) {
$occurrences[] = array('start' => date($format, $current), 'end' => date($format, $current + $diff));
// create new current date
$current += $repeat;
}
} elseif ($type === 'weekly') {
$current = $start_date = strtotime($start);
$weekdays = array();
$repeat *= 7;
$i = $counter = 0;
$day = date('N', $current);
foreach ($weekly_days as $weekday) {
$weekdays[] = $weekday - $day;
}
$number_of_days = count($weekdays);
while ($current <= $finish) {
if (($more_days = $weekdays[$i++] + $repeat * $counter) >= 0) {
// create new current date
$current = strtotime('+' . $more_days . ' days', $start_date);
if ($current <= $finish) {
$occurrences[] = array('start' => date($format, $current), 'end' => date($format, $current + $diff));
}
}
if ($i === $number_of_days) {
$counter++;
$i = 0;
}
}
} elseif ($type === 'monthly') {
$current = strtotime($start);
$start_date = date_parse($start);
// is it day of week?
if ($monthly_day_type === 2) {
// 1-7
$day_of_week = date('N', $current);
// 1-31 / 7 rounded down
$which = (int) floor(date('j', $current) / 7);
// time
$diff_time = $start_date['second'] + $start_date['minute'] * 60 + $start_date['hour'] * 3600;
} else {
$diff_time = 0;
}
while ($current <= $finish) {
$occurrences[] = array('start' => date($format, $current + $diff_time), 'end' => date($format, $current + $diff + $diff_time));
// current date
$date = date_parse(date('Y-m-d', $current));
// create new current date
if ($start_date['day'] > 28) {
$values = date('Y-m-t', strtotime('+' . $repeat . ' months', strtotime($date['year'] . '-' . $date['month'] . '-01')));
$values = explode('-', $values);
if ($values[2] < $date['day']) {
$current = strtotime($values[0] . '-' . $values[1] . '-' . $values[2]);
} else {
$current = strtotime($values[0] . '-' . $values[1] . '-' . $start_date['day']);
}
} else {
$current = strtotime('+' . $repeat . ' months', $current);
}
if ($monthly_day_type === 2) {
// due to PHP 5.2 bugs lets do some craziness
$year = date('Y', $current);
$month = date('m', $current);
$day_of_month = date('N', strtotime($year . '-' . $month . '-01'));
if ($day_of_month <= $day_of_week) {
$number = $day_of_week - $day_of_month + 1;
} else {
$number = $day_of_week - $day_of_month + 8;
}
$number += 7 * $which;
// is it valid date?
while (!checkdate((int) $month, $number, $year)) {
$number -= 7;
}
$current = strtotime($year . '-' . $month . '-' . str_pad($number, 2, '0', STR_PAD_LEFT));
}
}
} elseif ($type === 'yearly') {
$current = strtotime($start);
while ($current <= $finish) {
$occurrences[] = array('start' => date($format, $current), 'end' => date($format, $current + $diff));
// create new current date
$current = strtotime('+1 year', $current);
}
}
if (!empty($occurrences)) {
global $wpdb;
$query = array();
foreach ($occurrences as $id => $occurrence) {
if ($id > 0) {
$query[] = "(" . $post_id . ", '_event_occurrence_date', '" . $occurrence['start'] . "|" . $occurrence['end'] . "')";
}
}
if (!empty($query)) {
$wpdb->query('INSERT INTO ' . $wpdb->postmeta . ' (post_id, meta_key, meta_value) VALUES ' . implode(', ', $query));
}
}
// get last occurrence
$last = end($occurrences);
// add last occurrence
add_post_meta($post_id, '_event_occurrence_last_date', $last['start'] . '|' . $last['end']);
}
