page-link.ts
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///
/// Copyright © 2016-2019 The Thingsboard Authors
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
import { Direction, SortOrder } from '@shared/models/page/sort-order';
export class PageLink {
textSearch: string;
pageSize: number;
page: number;
sortOrder: SortOrder;
constructor(pageSize: number, page: number = 0, textSearch: string = null, sortOrder: SortOrder = null) {
this.textSearch = textSearch;
this.pageSize = pageSize;
this.page = page;
this.sortOrder = sortOrder;
}
public nextPageLink(): PageLink {
return new PageLink(this.pageSize, this.page + 1, this.textSearch, this.sortOrder);
}
public toQuery(): string {
let query = `?pageSize=${this.pageSize}&page=${this.page}`;
if (this.textSearch && this.textSearch.length) {
query += `&textSearch=${this.textSearch}`;
}
if (this.sortOrder) {
query += `&sortProperty=${this.sortOrder.property}&sortOrder=${this.sortOrder.direction}`;
}
return query;
}
public sort(item1: any, item2: any): number {
if (this.sortOrder) {
const property = this.sortOrder.property;
const item1Value = item1[property];
const item2Value = item2[property];
let result = 0;
if (item1Value !== item2Value) {
if (typeof item1Value === 'number' && typeof item2Value === 'number') {
result = item1Value - item2Value;
} else if (typeof item1Value === 'string' && typeof item2Value === 'string') {
result = item1Value.localeCompare(item2Value);
} else if (typeof item1Value !== typeof item2Value) {
result = 1;
}
}
return this.sortOrder.direction === Direction.ASC ? result : result * -1;
}
return 0;
}
}
export class TimePageLink extends PageLink {
startTime: number;
endTime: number;
constructor(pageSize: number, page: number = 0, textSearch: string = null, sortOrder: SortOrder = null,
startTime: number = null, endTime: number = null) {
super(pageSize, page, textSearch, sortOrder);
this.startTime = startTime;
this.endTime = endTime;
}
public nextPageLink(): TimePageLink {
return new TimePageLink(this.pageSize, this.page + 1, this.textSearch, this.sortOrder, this.startTime, this.endTime);
}
public toQuery(): string {
let query = super.toQuery();
if (this.startTime) {
query += `&startTime=${this.startTime}`;
}
if (this.endTime) {
query += `&endTime=${this.endTime}`;
}
return query;
}
}