1 import { Http, RequestOptionsArgs, URLSearchParams, Response } from '@angular/http'
3 import { ServerDataSource } from 'ng2-smart-table'
5 export class RestDataSource extends ServerDataSource {
6 constructor (http: Http, endpoint: string) {
16 protected extractTotalFromResponse (res: Response) {
17 const rawData = res.json()
18 return rawData ? parseInt(rawData.total, 10) : 0
21 protected addSortRequestOptions (requestOptions: RequestOptionsArgs) {
22 const searchParams = requestOptions.params as URLSearchParams
25 this.sortConf.forEach((fieldConf) => {
26 const sortPrefix = fieldConf.direction === 'desc' ? '-' : ''
28 searchParams.set(this.conf.sortFieldKey, sortPrefix + fieldConf.field)
35 protected addPagerRequestOptions (requestOptions: RequestOptionsArgs) {
36 const searchParams = requestOptions.params as URLSearchParams
38 if (this.pagingConf && this.pagingConf['page'] && this.pagingConf['perPage']) {
39 const perPage = this.pagingConf['perPage']
40 const page = this.pagingConf['page']
42 const start = (page - 1) * perPage
45 searchParams.set('start', start.toString())
46 searchParams.set('count', count.toString())