Additional improvements to Store and Record API

CHANGELOG.md

@@ -18,15 +18,26 @@
   `agOptions.defaultGroupSortComparator`).
 * The `Column.cellClass` and `Column.headerClass` configs now accept functions to dynamically
   generate custom classes based on the Record and/or Column being rendered.
-
+* The `Record` object now provides an additional getter `Record.allChildren` to return all children of the
+  record, irrespective of the current filter in place on the record's store.  This supplements the
+  existing `Record.children` getter, which returns only the children meeting the filter.   
+
+### 💥 Breaking Changes
+* The class `LocalStore` has been renamed `Store`, and is now the main implementation and base class
+  for Store Data.  The extraneous abstract superclass `BaseStore` has been removed.  
+* `Store.dataLastUpdated` had been renamed `Store.lastUpdated` on the new class and is now a 
+  simple timestamp (ms) rather than a javascript date object.  
+* The constructor argument `Store.processRawData` now expects a function that *returns* a modified object with the
+  necessary edits.  This allows implementations to safely *clone* the raw data rather than mutating it.     
+* The method `Store.removeRecord` has been replaced with the method `Store.removeRecords`.  This will
+  facilitate efficient bulk deletes. 
 ### ⚙️ Technical
-
 * `Grid` now performs an important performance workaround when loading a new dataset that would
   result in the removal of a significant amount of existing records/rows. The underlying ag-Grid
   component has a serious bottleneck here (acknowledged as AG-2879 in their bug tracker). The Hoist
   grid wrapper will now detect when this is likely and proactively clear all data using a different
   API call before loading the new dataset.
-* The implementations of Hoist store classes, `RecordSet`, and `Record` have been updated to more
+* The implementations `Store`, `RecordSet`, and `Record` have been updated to more
   efficiently re-use existing record references when loading, updating, or filtering data in a
   store. This keeps the Record objects within a store as stable as possible, and allows additional
   optimizations by ag-Grid and its `deltaRowDataMode`.

cmp/grid/Grid.js

@@ -338,7 +338,7 @@ export class Grid extends Component {
             {agGridModel, store} = model;
 
         return {
-            track: () => [agGridModel.agApi, store.records, store.dataLastUpdated],
+            track: () => [agGridModel.agApi, store.records, store.lastUpdated],
             run: ([api, records]) => {
                 if (!api) return;
 
@@ -363,10 +363,8 @@ export class Grid extends Component {
                     console.debug(`Loaded ${records.length} records into ag-Grid: ${Date.now() - now}ms`);
 
                     // Set flag if data is hierarchical.
-                    this._isHierarchical = model.store.allRecords.some(
-                        rec => rec.parentId != null
-                    );
-
+                    this._isHierarchical = store.allRootCount != store.allCount;
+
                     // Increment version counter to trigger selectionReaction w/latest data.
                     this._dataVersion++;
                 });

cmp/grid/GridModel.js

@@ -7,7 +7,7 @@
 import {HoistModel, LoadSupport, XH} from '@xh/hoist/core';
 import {Column, ColumnGroup} from '@xh/hoist/cmp/grid';
 import {AgGridModel} from '@xh/hoist/cmp/ag-grid';
-import {BaseStore, LocalStore, StoreSelectionModel} from '@xh/hoist/data';
+import {Store, StoreSelectionModel} from '@xh/hoist/data';
 import {
     ColChooserModel as DesktopColChooserModel,
     StoreContextMenu
@@ -58,7 +58,7 @@ export class GridModel {
     //------------------------
     // Immutable public properties
     //------------------------
-    /** @member {BaseStore} */
+    /** @member {Store} */
     store;
     /** @member {StoreSelectionModel} */
     selModel;
@@ -109,8 +109,8 @@ export class GridModel {
     /**
      * @param {Object} c - GridModel configuration.
      * @param {Object[]} c.columns - {@link Column} or {@link ColumnGroup} configs
-     * @param {(BaseStore|Object)} [c.store] - a Store instance, or a config with which to create a
-     *      default LocalStore. If not supplied, store fields will be inferred from columns config.
+     * @param {(Store|Object)} [c.store] - a Store instance, or a config with which to create a
+     *      Store. If not supplied, store fields will be inferred from columns config.
      * @param {boolean} [c.treeMode] - true if grid is a tree grid (default false).
      * @param {(StoreSelectionModel|Object|String)} [c.selModel] - StoreSelectionModel, or a
      *      config or string `mode` with which to create one.
@@ -575,7 +575,7 @@ export class GridModel {
     parseStore(store) {
         store = withDefault(store, {});
 
-        if (store instanceof BaseStore) {
+        if (store instanceof Store) {
             return store;
         }
 
@@ -587,18 +587,20 @@ export class GridModel {
                 colFieldNames = uniq(compact(map(this.getLeafColumns(), 'field'))),
                 missingFieldNames = difference(colFieldNames, storeFieldNames);
 
+            pull(missingFieldNames, 'id');
+
             if (missingFieldNames.length) {
                 store = {
                     ...store,
                     fields: [...fields, ...missingFieldNames]
                 };
             }
 
-            return this.markManaged(new LocalStore(store));
+            return this.markManaged(new Store(store));
         }
 
         throw XH.exception(
-            'The GridModel.store config must be either a concrete instance of BaseStore or a config to create one.');
+            'The GridModel.store config must be either a concrete instance of Store or a config to create one.');
     }
 
     parseSelModel(selModel) {

data/Field.js

@@ -5,8 +5,6 @@
  * Copyright © 2019 Extremely Heavy Industries Inc.
  */
 
-import {Record} from '@xh/hoist/data/Record';
-import {throwIf} from '@xh/hoist/utils/js';
 import {startCase, isEqual as lodashIsEqual} from 'lodash';
 import {XH} from '@xh/hoist/core';
 
@@ -38,12 +36,6 @@ export class Field {
         label = startCase(name),
         defaultValue = null
     }) {
-
-        throwIf(
-            Record.RESERVED_FIELD_NAMES.includes(name),
-            `Field name "${name}" cannot be used. It is reserved as a top-level property of the Record class.`
-        );
-
         this.name = name;
         this.type = type;
         this.label = label;