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1 | import { HttpErrorResponse } from '@angular/common/http' | |
2 | import { Injectable } from '@angular/core' | |
3 | import { dateToHuman } from '@app/shared/misc/utils' | |
4 | import { Observable } from 'rxjs/Observable' | |
5 | import { ResultList } from '../../../../../shared' | |
6 | ||
7 | @Injectable() | |
8 | export class RestExtractor { | |
9 | ||
10 | extractDataBool () { | |
11 | return true | |
12 | } | |
13 | ||
14 | applyToResultListData <T> (result: ResultList<T>, fun: Function, additionalArgs?: any[]): ResultList<T> { | |
15 | const data: T[] = result.data | |
16 | const newData: T[] = [] | |
17 | ||
18 | data.forEach(d => newData.push(fun.apply(this, [ d ].concat(additionalArgs)))) | |
19 | ||
20 | return { | |
21 | total: result.total, | |
22 | data: newData | |
23 | } | |
24 | } | |
25 | ||
26 | convertResultListDateToHuman <T> (result: ResultList<T>, fieldsToConvert: string[] = [ 'createdAt' ]): ResultList<T> { | |
27 | return this.applyToResultListData(result, this.convertDateToHuman, [ fieldsToConvert ]) | |
28 | } | |
29 | ||
30 | convertDateToHuman (target: object, fieldsToConvert: string[]) { | |
31 | fieldsToConvert.forEach(field => target[field] = dateToHuman(target[field])) | |
32 | ||
33 | return target | |
34 | } | |
35 | ||
36 | handleError (err: HttpErrorResponse) { | |
37 | let errorMessage | |
38 | ||
39 | if (err.error instanceof Error) { | |
40 | // A client-side or network error occurred. Handle it accordingly. | |
41 | errorMessage = err.error.message | |
42 | console.error('An error occurred:', errorMessage) | |
43 | } else if (err.status !== undefined) { | |
44 | // A server-side error occurred. | |
45 | if (err.error) { | |
46 | if (err.error.errors) { | |
47 | const errors = err.error.errors | |
48 | const errorsArray: string[] = [] | |
49 | ||
50 | Object.keys(errors).forEach(key => { | |
51 | errorsArray.push(errors[key].msg) | |
52 | }) | |
53 | ||
54 | errorMessage = errorsArray.join('. ') | |
55 | } else if (err.error.error) { | |
56 | errorMessage = err.error.error | |
57 | } | |
58 | } else if (err.status === 413) { | |
59 | errorMessage = 'Request is too large for the server. Please contact you administrator if you want to increase the limit size.' | |
60 | } | |
61 | ||
62 | errorMessage = errorMessage ? errorMessage : 'Unknown error.' | |
63 | console.error(`Backend returned code ${err.status}, body was: ${errorMessage}`) | |
64 | } else { | |
65 | errorMessage = err | |
66 | } | |
67 | ||
68 | const errorObj = { | |
69 | message: errorMessage, | |
70 | status: undefined, | |
71 | body: undefined | |
72 | } | |
73 | ||
74 | if (err.status) { | |
75 | errorObj.status = err.status | |
76 | errorObj.body = err.error | |
77 | } | |
78 | ||
79 | return Observable.throw(errorObj) | |
80 | } | |
81 | } |