Add links to ALL other occurrences in a recurring event series (not just future occurrences) -- looks like http://cl.ly/1h383J1b3L0P -- created for https://theeventscalendar.com/support/forums/topic/displaying-all-events-that-are-in-the-same-series-as-the-displayed-single-even/

single-event.php

<?php

//
// comments are above
// in the original /wp-content/plugins/the-events-calendar/src/views/single-event.php file
//



if ( ! defined( 'ABSPATH' ) ) {
	die( '-1' );
}

$events_label_singular = tribe_get_event_label_singular();
$events_label_plural = tribe_get_event_label_plural();

$event_id = get_the_ID();


// START CUSTOM CODE from https://gist.github.com/cliffordp/a77f4943e13f9e4e243564a210f82c83
//
// Add links to ALL other occurrences in a recurring event series (not just future occurrences)
//

if( ! function_exists( 'tribe_is_recurring_event' ) ) {
	// bail because we need PRO active for recurring events
} else {
	$recurrence_parent_id = wp_get_post_parent_id( $event_id );
	
	if ( empty( $recurrence_parent_id ) ) {
		$recurrence_parent_id = $event_id;
	}
	
	if ( ! tribe_is_recurring_event( $event_id ) ) {
		$recurrence_parent_id = 0;
	}
	
	if ( empty( $recurrence_parent_id ) ) {
		// not a recurring event, bail
	} else {
		$recurrence_args = array(
			'post_parent'    => $recurrence_parent_id,
			'meta_key'       => '_EventStartDate',
			'orderby'        => 'meta_key',
			'order'          => 'ASC',
			'fields'         => 'ids',
			'posts_per_page' => -1,
		);
		
		$all_event_ids_in_recurrence_series = tribe_get_events( $recurrence_args );
		
		if ( 1 < count( $all_event_ids_in_recurrence_series ) ) {
			echo '<ul>';
			
			foreach( $all_event_ids_in_recurrence_series as $key => $value ) {
				if ( $event_id !== $value ) { // do not include event we are currently viewing
					printf( '<li><a href="%s">Other occurrence #%d</a></li>', esc_url( tribe_get_event_link( $value ) ), $key+1 );
				}
			}
			
			echo '</ul>';
		} else {
			// nothing to do (should be that $event_id is the only one)
		}
		
	}
}

// END CUSTOM CODE