protected function handle_creation_date_update( $student_id, $post_id, $date ) {

		$date_created = rest_parse_date( $date );

		if ( ! $date_created ) {
			return llms_rest_bad_request_error();
		}

		$date_created = date_i18n( 'Y-m-d H:i:s', $date_created );

		global $wpdb;

		$inner_query = $wpdb->prepare(
			"
			SELECT upm2.meta_id
			FROM ( SELECT * FROM {$wpdb->prefix}lifterlms_user_postmeta ) AS upm2
			WHERE upm2.meta_key = '_start_date' AND upm2.user_id = %d AND upm2.post_id = %d
			ORDER BY upm2.updated_date DESC
			LIMIT 1
			",
			$student_id,
			$post_id
		);

		$result = $wpdb->query(
			$wpdb->prepare(
				"UPDATE {$wpdb->prefix}lifterlms_user_postmeta SET updated_date = %s WHERE meta_id = (${inner_query});",
				$date_created
			)
		); // no-cache ok.

		return $result;
	}