小编nfo*_*ont的帖子

import {
  AngularFireDatabase
} from 'angularfire2/database';
import 'rxjs/add/operator/map';

/*
  Generated class for the FirebaseProvider provider.

  See https://angular.io/docs/ts/latest/guide/dependency-injection.html
  for more info on providers and Angular 2 DI.
*/
@Injectable()
export class FirebaseProvider {

  constructor(public afd: AngularFireDatabase) {}


  getPostsItems() {
    return this.afd.list('/Posts/', {
      query: {
        orderByChild: "date",
      }
    });

  }