/**
* Update recurring event dates
*
* @since 0.9
*/
function ctc_update_recurring_event_dates()
{
// Get all events with end date in past and have valid recurring value
$events_query = new WP_Query(array('post_type' => 'ctc_event', 'nopaging' => true, 'meta_query' => array('relation' => 'AND', array('key' => '_ctc_event_end_date', 'value' => date_i18n('Y-m-d'), 'compare' => '<', 'type' => 'DATE'), array('key' => '_ctc_event_recurrence', 'value' => array('weekly', 'monthly', 'yearly'), 'compare' => 'IN'))));
// Loop events
if (!empty($events_query->posts)) {
// Instantiate recurrence class
$ctc_recurrence = new CT_Recurrence();
// Loop events to modify dates
foreach ($events_query->posts as $post) {
// Get start and end date
$start_date = get_post_meta($post->ID, '_ctc_event_start_date', true);
$end_date = get_post_meta($post->ID, '_ctc_event_end_date', true);
// Get recurrence
$recurrence = get_post_meta($post->ID, '_ctc_event_recurrence', true);
$recurrence_end_date = get_post_meta($post->ID, '_ctc_event_recurrence_end_date', true);
// Difference between start and end date in seconds
$time_difference = strtotime($end_date) - strtotime($start_date);
// Get soonest occurence that is today or later
$args = array('start_date' => $start_date, 'frequency' => $recurrence);
$args = apply_filters('ctc_event_recurrence_args', $args, $post);
// Custom Recurring Events add-on uses this
$new_start_date = $ctc_recurrence->calc_next_future_date($args);
// If no new start date gotten, set it to current start date
// This could be because recurrence ended, arguments are invalid, etc.
if (!$new_start_date) {
$new_start_date = $start_date;
}
// Add difference between original start/end date to new start date to get new end date
$new_end_date = date('Y-m-d', strtotime($new_start_date) + $time_difference);
// Has recurrence ended?
// Recurrence end date exists and is earlier than new start date
if ($recurrence_end_date && strtotime($recurrence_end_date) < strtotime($new_start_date)) {
// Unset recurrence option to keep dates from being moved forward
update_post_meta($post->ID, '_ctc_event_recurrence', 'none');
} else {
// Update start and end dates
update_post_meta($post->ID, '_ctc_event_start_date', $new_start_date);
update_post_meta($post->ID, '_ctc_event_end_date', $new_end_date);
// Update the hidden datetime fields for ordering
ctc_update_event_date_time($post->ID);
}
}
}
}
