From 9c1308b8b6c6296da4ecdfca39842c95da850596 Mon Sep 17 00:00:00 2001
From: Aleksandar Stanisic <aleksandar@tuta.io>
Date: Mon, 21 Dec 2020 00:06:52 +0100
Subject: [PATCH] Enable reversing _null, _nnull, _empty and _nempty

---
 api/src/utils/apply-query.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/api/src/utils/apply-query.ts b/api/src/utils/apply-query.ts
index 0eab1cd823..3128fca41b 100644
--- a/api/src/utils/apply-query.ts
+++ b/api/src/utils/apply-query.ts
@@ -193,22 +193,22 @@ export async function applyFilter(knex: Knex, rootQuery: QueryBuilder, rootFilte
 				dbQuery[logical].whereNotIn(key, value as string[]);
 			}
 
-			if (operator === '_null') {
+			if (operator === '_null' || (operator === '_nnull' && compareValue === false)) {
 				dbQuery[logical].whereNull(key);
 			}
 
-			if (operator === '_nnull') {
+			if (operator === '_nnull' || (operator === '_null' && compareValue === false)) {
 				dbQuery[logical].whereNotNull(key);
 			}
 
-			if (operator === '_empty') {
+			if (operator === '_empty' || (operator === '_nempty' && compareValue === false)) {
 				dbQuery[logical].andWhere((query) => {
 					query.whereNull(key);
 					query.orWhere(key, '=', '');
 				});
 			}
 
-			if (operator === '_nempty') {
+			if (operator === '_nempty' || (operator === '_empty' && compareValue === false)) {
 				dbQuery[logical].andWhere((query) => {
 					query.whereNotNull(key);
 					query.orWhere(key, '!=', '');