import { CollectionViewer, DataSource } from '@angular/cdk/collections';
import { HttpErrorResponse } from '@angular/common/http';
-import { MatSort } from '@angular/material';
-import { Observable } from 'rxjs/Observable';
+import { Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';
-import { merge } from 'rxjs';
import { of } from 'rxjs/observable/of';
import { catchError, finalize, map } from 'rxjs/operators';
+import { Observable } from 'rxjs/Observable';
+
import { PolicyType } from '../interfaces/policy.types';
import { PolicyService } from '../services/policy/policy.service';
import { NotificationService } from '../services/ui/notification.service';
+@Injectable({
+ providedIn: 'root'
+})
+
export class PolicyTypeDataSource extends DataSource<PolicyType> {
private policyTypeSubject = new BehaviorSubject<PolicyType[]>([]);
public rowCount = 1; // hide footer during intial load
constructor(private policySvc: PolicyService,
- private sort: MatSort,
private notificationService: NotificationService) {
super();
}
}
connect(collectionViewer: CollectionViewer): Observable<PolicyType[]> {
- const dataMutations = [
- this.policyTypeSubject.asObservable(),
- this.sort.sortChange
- ];
- return merge(...dataMutations).pipe(map(() => {
- return this.getSortedData([...this.policyTypeSubject.getValue()]);
- }));
+ return of(this.policyTypeSubject.getValue());
}
disconnect(collectionViewer: CollectionViewer): void {
this.policyTypeSubject.complete();
this.loadingSubject.complete();
}
-
- private getSortedData(data: PolicyType[]) {
- if (!this.sort.active || this.sort.direction === '') {
- return data;
- }
-
- return data.sort((a, b) => {
- const isAsc = this.sort.direction === 'asc';
- switch (this.sort.active) {
- case 'name': return compare(a.name, b.name, isAsc);
- default: return 0;
- }
- });
- }
-}
-
-function compare(a: any, b: any, isAsc: boolean) {
- return (a < b ? -1 : 1) * (isAsc ? 1 : -1);
}