From 797dc193bd284faca26d8369265daf6adbe669a0 Mon Sep 17 00:00:00 2001
From: James Collins <james.collins@outlook.com.au>
Date: Wed, 25 Jan 2023 12:43:21 +1000
Subject: [PATCH] fix descending sort option

---
 app/Filters/FilterAbstract.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/Filters/FilterAbstract.php b/app/Filters/FilterAbstract.php
index 8c72e50..ee93886 100644
--- a/app/Filters/FilterAbstract.php
+++ b/app/Filters/FilterAbstract.php
@@ -314,7 +314,14 @@ abstract class FilterAbstract
 
         /* Remove non-viewable attributes from sort list */
         if (count($sortList) > 0) {
-            $sortList = array_intersect($attributes, $sortList);
+            $sortList = array_filter($sortList, function ($item) use ($attributes) {
+                $parsedItem = $item;
+                if (substr($parsedItem, 0, 1) === '-') {
+                    $parsedItem = substr($parsedItem, 1);
+                }
+
+                return in_array($parsedItem, $attributes);
+            });
         }
 
         /* Do we have any sort element left? */