Product Sale Module done (Sales Detail) -- need to rename the permission

bookie/src/app/product-sale-report/product-sale-report-resolver.service.ts

@@ -0,0 +1,20 @@
+import {Injectable} from '@angular/core';
+import {ActivatedRouteSnapshot, Resolve, RouterStateSnapshot} from '@angular/router';
+import {Observable} from 'rxjs/internal/Observable';
+import {ProductSaleReport} from './product-sale-report';
+import {ProductSaleReportService} from './product-sale-report.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ProductSaleReportResolver implements Resolve<ProductSaleReport> {
+
+  constructor(private ser: ProductSaleReportService) {
+  }
+
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<ProductSaleReport> {
+    const startDate = route.queryParamMap.get('startDate') || null;
+    const finishDate = route.queryParamMap.get('finishDate') || null;
+    return this.ser.get(startDate, finishDate);
+  }
+}