Strict done!!

overlord/src/app/purchase-entries/purchase-entries-item.ts

@@ -9,4 +9,18 @@ export class PurchaseEntriesItem {
   tax: number;
   discount: number;
   amount: number;
+
+  public constructor(init?: Partial<PurchaseEntriesItem>) {
+    this.id = '';
+    this.date = '';
+    this.supplier = '';
+    this.url = [];
+    this.product = '';
+    this.quantity = 0;
+    this.rate = 0;
+    this.tax = 0;
+    this.discount = 0;
+    this.amount = 0;
+    Object.assign(this, init);
+  }
 }

overlord/src/app/purchase-entries/purchase-entries.component.ts

@@ -16,10 +16,10 @@ import { PurchaseEntriesDataSource } from './purchase-entries-datasource';
 export class PurchaseEntriesComponent implements OnInit {
   @ViewChild(MatPaginator, { static: true }) paginator?: MatPaginator;
   @ViewChild(MatSort, { static: true }) sort?: MatSort;
-  dataSource: PurchaseEntriesDataSource;
+  info: PurchaseEntries = new PurchaseEntries();
+  dataSource: PurchaseEntriesDataSource = new PurchaseEntriesDataSource(this.info.body);
   form: FormGroup;
-  info: PurchaseEntries;
-  selectedRowId: string;
+  selectedRowId = '';
   /** Columns displayed in the table. Columns IDs can be added, removed, or reordered. */
   displayedColumns = [
     'date',
@@ -48,7 +48,7 @@ export class PurchaseEntriesComponent implements OnInit {
         startDate: moment(this.info.startDate, 'DD-MMM-YYYY').toDate(),
         finishDate: moment(this.info.finishDate, 'DD-MMM-YYYY').toDate(),
       });
-      this.dataSource = new PurchaseEntriesDataSource(this.paginator, this.sort, this.info.body);
+      this.dataSource = new PurchaseEntriesDataSource(this.info.body, this.paginator, this.sort);
     });
   }
 

overlord/src/app/purchase-entries/purchase-entries.service.ts

@@ -16,7 +16,7 @@ const serviceName = 'PurchaseEntriesService';
 export class PurchaseEntriesService {
   constructor(private http: HttpClient, private log: ErrorLoggerService) {}
 
-  list(startDate: string, finishDate): Observable<PurchaseEntries> {
+  list(startDate: string | null, finishDate: string | null): Observable<PurchaseEntries> {
     const startDateWithSlash = startDate ? `/${startDate}` : '';
     const finishDateWithSlash = finishDate ? `/${finishDate}` : '';
     return <Observable<PurchaseEntries>>(

overlord/src/app/purchase-entries/purchase-entries.ts

@@ -4,4 +4,11 @@ export class PurchaseEntries {
   startDate: string;
   finishDate: string;
   body: PurchaseEntriesItem[];
+
+  public constructor(init?: Partial<PurchaseEntries>) {
+    this.startDate = '';
+    this.finishDate = '';
+    this.body = [];
+    Object.assign(this, init);
+  }
 }