2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 Huawei Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 import { Pipe, PipeTransform } from '@angular/core';
23 @Pipe({ name: 'orderBy' })
24 export class OrderByPipe implements PipeTransform {
25 transform(records: Array<any>, args?: any): any {
26 if (!records || !args.path) return records;
27 let len = args.path.length;
28 return records.sort((itemIdx1, itemIdx2) => {
30 while (i < len) { itemIdx1 = itemIdx1[args.path[i]]; itemIdx2 = itemIdx2[args.path[i]]; i++; }
31 // Order * (-1): We change our order
32 return itemIdx1 + "" > itemIdx2 + "" ? args.direction : args.direction * (- 1);