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df98563e | 1 | import { Http, RequestOptionsArgs, URLSearchParams, Response } from '@angular/http' |
28798b5d | 2 | |
df98563e | 3 | import { ServerDataSource } from 'ng2-smart-table' |
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4 | |
5 | export class RestDataSource extends ServerDataSource { | |
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6 | constructor (http: Http, endpoint: string) { |
7 | const options = { | |
8 | endPoint: endpoint, | |
9 | sortFieldKey: 'sort', | |
10 | dataKey: 'data' | |
11 | } | |
12 | ||
13 | super(http, options) | |
14 | } | |
15 | ||
16 | protected extractTotalFromResponse (res: Response) { | |
17 | const rawData = res.json() | |
18 | return rawData ? parseInt(rawData.total, 10) : 0 | |
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19 | } |
20 | ||
df98563e | 21 | protected addSortRequestOptions (requestOptions: RequestOptionsArgs) { |
42374cf5 | 22 | const searchParams = requestOptions.params as URLSearchParams |
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23 | |
24 | if (this.sortConf) { | |
25 | this.sortConf.forEach((fieldConf) => { | |
df98563e | 26 | const sortPrefix = fieldConf.direction === 'desc' ? '-' : '' |
28798b5d | 27 | |
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28 | searchParams.set(this.conf.sortFieldKey, sortPrefix + fieldConf.field) |
29 | }) | |
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30 | } |
31 | ||
df98563e | 32 | return requestOptions |
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33 | } |
34 | ||
df98563e | 35 | protected addPagerRequestOptions (requestOptions: RequestOptionsArgs) { |
42374cf5 | 36 | const searchParams = requestOptions.params as URLSearchParams |
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37 | |
38 | if (this.pagingConf && this.pagingConf['page'] && this.pagingConf['perPage']) { | |
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39 | const perPage = this.pagingConf['perPage'] |
40 | const page = this.pagingConf['page'] | |
28798b5d | 41 | |
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42 | const start = (page - 1) * perPage |
43 | const count = perPage | |
28798b5d | 44 | |
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45 | searchParams.set('start', start.toString()) |
46 | searchParams.set('count', count.toString()) | |
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47 | } |
48 | ||
df98563e | 49 | return requestOptions |
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50 | } |
51 | } |