bbp_admin_repair_topic_reply_count()

function bbp_admin_repair_topic_reply_count() {
	global $wpdb;

	$statement = __( 'Counting the number of replies in each discussion… %s', 'buddyboss' );
	$result    = __( 'Failed!', 'buddyboss' );

	// Post types and status
	$tpt = bbp_get_topic_post_type();
	$rpt = bbp_get_reply_post_type();
	$pps = bbp_get_public_status_id();
	$cps = bbp_get_closed_status_id();

	// Delete the meta key _bbp_reply_count for each topic
	$sql_delete = "DELETE `postmeta` FROM `{$wpdb->postmeta}` AS `postmeta`
						LEFT JOIN `{$wpdb->posts}` AS `posts` ON `posts`.`ID` = `postmeta`.`post_id`
						WHERE `posts`.`post_type` = '{$tpt}'
						AND `postmeta`.`meta_key` = '_bbp_reply_count'";

	if ( is_wp_error( $wpdb->query( $sql_delete ) ) ) {
		return array( 1, sprintf( $statement, $result ) );
	}

	// Recalculate the meta key _bbp_reply_count for each topic
	$sql = "INSERT INTO `{$wpdb->postmeta}` (`post_id`, `meta_key`, `meta_value`) (
			SELECT `topics`.`ID` AS `post_id`, '_bbp_reply_count' AS `meta_key`, COUNT(`replies`.`ID`) As `meta_value`
				FROM `{$wpdb->posts}` AS `topics`
					LEFT JOIN `{$wpdb->posts}` as `replies`
						ON  `replies`.`post_parent` = `topics`.`ID`
						AND `replies`.`post_status` = '{$pps}'
						AND `replies`.`post_type`   = '{$rpt}'
				WHERE `topics`.`post_type` = '{$tpt}'
					AND `topics`.`post_status` IN ( '{$pps}', '{$cps}' )
				GROUP BY `topics`.`ID`);";

	if ( is_wp_error( $wpdb->query( $sql ) ) ) {
		return array( 2, sprintf( $statement, $result ) );
	}

	return array( 0, sprintf( $statement, __( 'Complete!', 'buddyboss' ) ) );
}