From e61c200b748430975ebe643faab0b8d46704b578 Mon Sep 17 00:00:00 2001
From: Maximilian Krambach <maximilian.krambach@intevation.de>
Date: Tue, 12 Feb 2019 13:05:06 +0100
Subject: [PATCH] fix category filter

---
 client/src/app/core/ui-services/base-filter-list.service.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/client/src/app/core/ui-services/base-filter-list.service.ts b/client/src/app/core/ui-services/base-filter-list.service.ts
index ba82c12cf..b2f49edff 100644
--- a/client/src/app/core/ui-services/base-filter-list.service.ts
+++ b/client/src/app/core/ui-services/base-filter-list.service.ts
@@ -316,7 +316,7 @@ export abstract class BaseFilterListService<M extends BaseModel, V extends BaseV
             const compareValueCondition = (value, condition): boolean => {
                 if (value === condition) {
                     return true;
-                } else if (value.hasOwnProperty('id') && value.id === condition) {
+                } else if ('id' in value && value.id === condition) {
                     return true;
                 }
                 return false;
@@ -341,7 +341,7 @@ export abstract class BaseFilterListService<M extends BaseModel, V extends BaseV
             ) {
                 return true;
             }
-        } else if (typeof item[filter.property] === 'object' && item[filter.property].hasOwnProperty('id')) {
+        } else if (typeof item[filter.property] === 'object' && 'id' in item[filter.property]) {
             if (item[filter.property].id === option.condition) {
                 return true;
             }