added rewrite param to delete latest timeseries, enabled single selection deletion (#8933)

ui-ngx/src/app/core/http/attribute.service.ts

@@ -50,7 +50,7 @@ export class AttributeService {
   }
 
   public deleteEntityTimeseries(entityId: EntityId, timeseries: Array<AttributeData>, deleteAllDataForKeys = false,
-                                startTs?: number, endTs?: number, rewriteLatestIfDeleted = false, deleteLatest = false,
+                                startTs?: number, endTs?: number, rewriteLatestIfDeleted = false, deleteLatest = true,
                                 config?: RequestConfig): Observable<any> {
     const keys = timeseries.map(attribute => encodeURIComponent(attribute.key)).join(',');
     let url = `/api/plugins/telemetry/${entityId.entityType}/${entityId.id}/timeseries/delete` +
@@ -64,9 +64,11 @@ export class AttributeService {
     return this.http.delete(url, defaultHttpOptionsFromConfig(config));
   }
 
-  public deleteEntityLatestTimeseries(entityId: EntityId, timeseries: Array<AttributeData>, config?: RequestConfig): Observable<any> {
+  public deleteEntityLatestTimeseries(entityId: EntityId, timeseries: Array<AttributeData>, rewrite = true,
+                                      config?: RequestConfig): Observable<any> {
     const keys = timeseries.map(attribute => encodeURIComponent(attribute.key)).join(',');
-    let url = `/api/plugins/telemetry/${entityId.entityType}/${entityId.id}/timeseries/latest/delete?keys=${keys}`;
+    let url = `/api/plugins/telemetry/${entityId.entityType}/${entityId.id}/timeseries/latest/delete?keys=${keys}` +
+        `$rewrite=${rewrite}`;
     return this.http.delete(url, defaultHttpOptionsFromConfig(config));
   }
 
@@ -111,7 +113,7 @@ export class AttributeService {
     let deleteEntityTimeseriesObservable: Observable<any>;
     if (deleteTimeseries.length) {
       deleteEntityTimeseriesObservable = this.deleteEntityTimeseries(entityId, deleteTimeseries, true,
-        null, null, false, false, config);
+        null, null, false, true, config);
     } else {
       deleteEntityTimeseriesObservable = of(null);
     }

ui-ngx/src/app/modules/home/components/attribute/attribute-table.component.html

@@ -93,7 +93,7 @@
                 (click)="deleteAttributes($event)">
           <mat-icon>delete</mat-icon>
         </button>
-        <button [fxShow]="attributeScope === latestTelemetryTypes.LATEST_TELEMETRY && dataSource.selection.selected.length > 1"
+        <button [fxShow]="attributeScope === latestTelemetryTypes.LATEST_TELEMETRY"
                 class="button-widget-action"
                 mat-icon-button [disabled]="isLoading$ | async"
                 matTooltip="{{ 'action.delete' | translate }}"

ui-ngx/src/app/modules/home/components/attribute/attribute-table.component.ts

@@ -386,7 +386,7 @@ export class AttributeTableComponent extends PageComponent implements AfterViewI
     if ($event) {
       $event.stopPropagation();
     }
-    const isMultipleDeletion = isUndefinedOrNull(attribute);
+    const isMultipleDeletion = isUndefinedOrNull(attribute) &&  this.dataSource.selection.selected.length > 1;
     const target = $event.target || $event.srcElement || $event.currentTarget;
     const config = new OverlayConfig();
     config.backdropClass = 'cdk-overlay-transparent-backdrop';
@@ -424,22 +424,23 @@ export class AttributeTableComponent extends PageComponent implements AfterViewI
     componentRef.onDestroy(() => {
       if (componentRef.instance.result !== null) {
         const strategy = componentRef.instance.result;
-        const timeseries = isMultipleDeletion ? this.dataSource.selection.selected : [attribute];
+        const timeseries = attribute ? [attribute]: this.dataSource.selection.selected;
         let deleteAllDataForKeys = false;
         let rewriteLatestIfDeleted = false;
         let startTs = null;
         let endTs = null;
-        let deleteLatest = false;
+        let deleteLatest = true;
         let task: Observable<any>;
         if (strategy === TimeseriesDeleteStrategy.DELETE_ALL_DATA_INCLUDING_KEY) {
           deleteAllDataForKeys = true;
-          deleteLatest = true;
         }
         if (strategy === TimeseriesDeleteStrategy.DELETE_OLD_DATA_EXCEPT_LATEST_VALUE) {
           deleteAllDataForKeys = true;
+          deleteLatest = false;
         }
         if (strategy === TimeseriesDeleteStrategy.DELETE_LATEST_VALUE) {
-          task = this.attributeService.deleteEntityLatestTimeseries(this.entityIdValue, timeseries);
+          rewriteLatestIfDeleted = componentRef.instance.rewriteLatestIfDeleted;
+          task = this.attributeService.deleteEntityLatestTimeseries(this.entityIdValue, timeseries, rewriteLatestIfDeleted);
         }
         if (strategy === TimeseriesDeleteStrategy.DELETE_DATA_FOR_TIME_PERIOD) {
           startTs = componentRef.instance.startDateTime.getTime();

ui-ngx/src/app/modules/home/components/attribute/delete-timeseries-panel.component.html

@@ -52,6 +52,8 @@
                  (ngModelChange)="onEndDateTimeChange($event)">
         </mat-form-field>
       </div>
+    </div>
+    <div *ngIf="isPeriodStrategy() || isDeleteLatestStrategy()">
       <mat-slide-toggle [(ngModel)]="rewriteLatestIfDeleted">
         {{ "attribute.delete-timeseries.rewrite-latest-value-if-deleted" | translate }}
       </mat-slide-toggle>

ui-ngx/src/app/modules/home/components/attribute/delete-timeseries-panel.component.ts

@@ -43,7 +43,7 @@ export class DeleteTimeseriesPanelComponent implements OnInit {
 
   endDateTime: Date;
 
-  rewriteLatestIfDeleted: boolean = false;
+  rewriteLatestIfDeleted: boolean = true;
 
   strategiesTranslationsMap = timeseriesDeleteStrategyTranslations;
 
@@ -80,6 +80,10 @@ export class DeleteTimeseriesPanelComponent implements OnInit {
     return this.strategy === TimeseriesDeleteStrategy.DELETE_DATA_FOR_TIME_PERIOD;
   }
 
+  isDeleteLatestStrategy(): boolean {
+    return this.strategy === TimeseriesDeleteStrategy.DELETE_LATEST_VALUE;
+  }
+
   onStartDateTimeChange(newStartDateTime: Date) {
     const endDateTimeTs = this.endDateTime.getTime();
     if (newStartDateTime.getTime() >= endDateTimeTs) {