[web] check item existence before update

2 files changed, 8 insertions, 2 deletions

diff --git a/web/src/js/ducks/eventLog.js b/web/src/js/ducks/eventLog.js
index aa472592..81f19e2e 100644
--- a/web/src/js/ducks/eventLog.js
+++ b/web/src/js/ducks/eventLog.js
@@ -120,7 +120,7 @@ export function fetchData() {
 
         return fetchApi('/events')
             .then(res => res.json())
-            .then(json =>  dispatch(receive(json.data)))
+            .then(json => dispatch(receive(json.data)))
             .catch(error => dispatch(fetchError(error)))
     }
 }
diff --git a/web/src/js/ducks/utils/view.js b/web/src/js/ducks/utils/view.js
index 20260537..87a05987 100755
--- a/web/src/js/ducks/utils/view.js
+++ b/web/src/js/ducks/utils/view.js
@@ -32,7 +32,7 @@ export default function reduce(state = defaultState, action) {
             }
 
         case ADD:
-            if (!action.filter(action.item)) {
+            if (state.indexOf[action.item.id] != null || !action.filter(action.item)) {
                 return state
             }
             return {
@@ -41,12 +41,18 @@ export default function reduce(state = defaultState, action) {
             }
 
         case REMOVE:
+            if (state.indexOf[action.item.id] == null) {
+                return state
+            }
             return {
                 ...state,
                 ...sortedRemove(state, action.id),
             }
 
         case UPDATE:
+            if (state.indexOf[action.item.id] == null) {
+                return
+            }
             const nextState = {
                 ...state,
                 ...sortedRemove(state, action.id),