Merge pull request #10625 from IgniteUI/mkirova/fix-10610

Remove unnecessary leaf records from pivot data.

Author: dkamburov

projects/igniteui-angular/src/lib/data-operations/pivot-strategy.ts

@@ -121,11 +121,6 @@ export class PivotColumnDimensionsStrategy implements IPivotDimensionStrategy {
                         delete hierarchy[k];
                     }
                 });
-                delete hierarchy.processed;
-                if (this.isLeaf(hierarchy, pivotKeys)) {
-                    delete hierarchy[pivotKeys.records]; /* remove the helper records of the actual records so that
-                        expand indicators can be rendered properly */
-                }
                 for (const property in flatCols) {
                     if (flatCols.hasOwnProperty(property)) {
                         hierarchy[property] = flatCols[property];

projects/igniteui-angular/src/lib/grids/pivot-grid/pivot-grid.pipes.spec.ts

@@ -813,9 +813,9 @@ describe('Pivot pipes', () => {
         ];
 
         const rowPipeResult = rowPipe.transform(data, pivotConfig, expansionStates);
-        const colPipeRes = columnPipe.transform(rowPipeResult, pivotConfig, expansionStates);
-        const rowStatePipeResult = rowStatePipe.transform(colPipeRes, pivotConfig, expansionStates, true);
-        expect(rowStatePipeResult.length).toEqual(39);
+        const columnPipeResult = columnPipe.transform(rowPipeResult, pivotConfig, new Map<any, boolean>());
+        const rowStatePipeResult = rowStatePipe.transform(columnPipeResult, pivotConfig, expansionStates, true);
+        expect(rowStatePipeResult.length).toEqual(31);
         expect(rowStatePipeResult[0]['AllPeriods']).toEqual('All Periods');
         expect(rowStatePipeResult[0]['AllProducts']).toEqual('All');
         expect(rowStatePipeResult[0]['ProductCategory']).not.toBeDefined();

projects/igniteui-angular/src/lib/grids/pivot-grid/pivot-grid.pipes.ts

@@ -69,13 +69,15 @@ export class IgxPivotRowExpansionPipe implements PipeTransform {
             PivotUtil.flattenHierarchy(data, config, row, expansionStates, defaultExpand, pivotKeys, totalLlv, prevDims, 0);
             prevDims.push(row);
         }
-        this.cleanState(data, pivotKeys);
-        return data;
+        const finalData = config.columnStrategy ? data : data.filter(x => x[pivotKeys.records]);
+        this.cleanState(finalData, pivotKeys);
+        return finalData;
     }
 
     private cleanState(data, pivotKeys) {
         data.forEach(rec => {
             const keys = Object.keys(rec);
+            delete rec.processed;
             //remove all record keys from final data since we don't need them anymore.
             keys.forEach(k => {
                 if (k.indexOf(pivotKeys.records) !== -1) {

src/app/pivot-grid/pivot-grid.sample.ts

@@ -75,6 +75,10 @@ export class PivotGridSampleComponent {
                     memberName: 'ProductCategory',
                     enabled: true
                 }
+            },
+            {
+                memberName: 'SellerName',
+                enabled: true
             }
         ],
         values: [