New: Download History

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

frontend/src/Store/Actions/Creators/createHandleActions.js

@@ -73,11 +73,12 @@ export default function createHandleActions(handlers, defaultState, section) {
         const newState = getSectionState(state, payloadSection);
         const items = newState.items;
 
-        if (!newState.itemMap) {
-          newState.itemMap = createItemMap(items);
-        }
-
-        const index = payload.id in newState.itemMap ? newState.itemMap[payload.id] : -1;
+        // Client side collections that are created by adding items to an
+        // existing array may not have an itemMap, the array is probably empty,
+        // but on the offchance it's not create a new item map based on the
+        // items in the array.
+        const itemMap = newState.itemMap ?? createItemMap(items);
+        const index = payload.id in itemMap ? itemMap[payload.id] : -1;
 
         newState.items = [...items];
 
@@ -96,6 +97,7 @@ export default function createHandleActions(handlers, defaultState, section) {
         } else if (!updateOnly) {
           const newIndex = newState.items.push({ ...otherProps }) - 1;
 
+          newState.itemMap = { ...itemMap };
           newState.itemMap[payload.id] = newIndex;
         }
 
@@ -152,7 +154,8 @@ export default function createHandleActions(handlers, defaultState, section) {
         const serverState = _.omit(data, ['records']);
         const calculatedState = {
           totalPages: Math.max(Math.ceil(data.totalRecords / data.pageSize), 1),
-          items: data.records
+          items: data.records,
+          itemMap: createItemMap(data.records)
         };
 
         return updateSectionState(state, payloadSection, Object.assign(newState, serverState, calculatedState));