const update = (state: DataExplorerState, id: string, updateFn: (dataExplorer: DataExplorer) => DataExplorer) =>
({ ...state, [id]: updateFn(getDataExplorer(state, id)) });
+const canUpdateColumns = (prevColumns: DataColumns<any>, nextColumns: DataColumns<any>) => {
+ if (prevColumns.length !== nextColumns.length) {
+ return true;
+ }
+ for (let i = 0; i < nextColumns.length; i++) {
+ const pc = prevColumns[i];
+ const nc = nextColumns[i];
+ if (pc.key !== nc.key || pc.name !== nc.name) {
+ return true;
+ }
+ }
+ return false;
+};
+
const setColumns = (columns: DataColumns<any>) =>
(dataExplorer: DataExplorer) =>
- ({ ...dataExplorer, columns });
+ ({ ...dataExplorer, columns: canUpdateColumns(dataExplorer.columns, columns) ? columns : dataExplorer.columns });
const mapColumns = (mapFn: (column: DataColumn<any>) => DataColumn<any>) =>
(dataExplorer: DataExplorer) =>