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1 | import { Injectable } from '@angular/core' | |
2 | import { HttpParams } from '@angular/common/http' | |
3 | import { SortMeta } from 'primeng/api' | |
4 | import { ComponentPagination, ComponentPaginationLight } from './component-pagination.model' | |
5 | ||
6 | import { RestPagination } from './rest-pagination' | |
7 | ||
8 | @Injectable() | |
9 | export class RestService { | |
10 | ||
11 | addRestGetParams (params: HttpParams, pagination?: RestPagination, sort?: SortMeta | string) { | |
12 | let newParams = params | |
13 | ||
14 | if (pagination !== undefined) { | |
15 | newParams = newParams.set('start', pagination.start.toString()) | |
16 | .set('count', pagination.count.toString()) | |
17 | } | |
18 | ||
19 | if (sort !== undefined) { | |
20 | let sortString = '' | |
21 | ||
22 | if (typeof sort === 'string') { | |
23 | sortString = sort | |
24 | } else { | |
25 | const sortPrefix = sort.order === 1 ? '' : '-' | |
26 | sortString = sortPrefix + sort.field | |
27 | } | |
28 | ||
29 | newParams = newParams.set('sort', sortString) | |
30 | } | |
31 | ||
32 | return newParams | |
33 | } | |
34 | ||
35 | addObjectParams (params: HttpParams, object: { [ name: string ]: any }) { | |
36 | for (const name of Object.keys(object)) { | |
37 | const value = object[name] | |
38 | if (!value) continue | |
39 | ||
40 | if (Array.isArray(value) && value.length !== 0) { | |
41 | for (const v of value) params = params.append(name, v) | |
42 | } else { | |
43 | params = params.append(name, value) | |
44 | } | |
45 | } | |
46 | ||
47 | return params | |
48 | } | |
49 | ||
50 | componentPaginationToRestPagination (componentPagination: ComponentPaginationLight): RestPagination { | |
51 | const start: number = (componentPagination.currentPage - 1) * componentPagination.itemsPerPage | |
52 | const count: number = componentPagination.itemsPerPage | |
53 | ||
54 | return { start, count } | |
55 | } | |
56 | } |