Small change to creating an itemMap during item update

Closes #1381

(cherry picked from commit 7f28ab895a73fe0677c62388b82e4d5f73e5c023)
This commit is contained in:
Mark McDowall
2020-04-20 17:56:22 -07:00
committed by ta264
parent 47f6e821ad
commit 83ebb972be
@@ -72,8 +72,12 @@ export default function createHandleActions(handlers, defaultState, section) {
if (section === baseSection) {
const newState = getSectionState(state, payloadSection);
const items = newState.items;
const itemMap = newState.itemMap ?? {};
// 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];