Open-ILS/src/eg2/src/app/share/catalog/bib-record.service.ts

   1 import {Injectable} from '@angular/core';
   2 import {Observable, from} from 'rxjs';
   3 import {mergeMap, map, tap} from 'rxjs/operators';
   4 import {OrgService} from '@eg/core/org.service';
   5 import {UnapiService} from '@eg/share/catalog/unapi.service';
   6 import {IdlService, IdlObject} from '@eg/core/idl.service';
   7 import {NetService} from '@eg/core/net.service';
   8 import {PcrudService} from '@eg/core/pcrud.service';
   9
  10 export const NAMESPACE_MAPS = {
  11     'mods':     'http://www.loc.gov/mods/v3',
  12     'biblio':   'http://open-ils.org/spec/biblio/v1',
  13     'holdings': 'http://open-ils.org/spec/holdings/v1',
  14     'indexing': 'http://open-ils.org/spec/indexing/v1'
  15 };
  16
  17 export const HOLDINGS_XPATH =
  18     '/holdings:holdings/holdings:counts/holdings:count';
  19
  20 interface EResourceUrl {
  21     href: string;
  22     note: string;
  23     label: string;
  24 }
  25
  26 export class BibRecordSummary {
  27     id: number; // == record.id() for convenience
  28     metabibId: number; // If present, this is a metabib summary
  29     metabibRecords: number[]; // all constituent bib records
  30     orgId: number;
  31     orgDepth: number;
  32     record: IdlObject;
  33     display: any;
  34     attributes: any;
  35     holdingsSummary: any;
  36     holdCount: number;
  37     bibCallNumber: string;
  38     net: NetService;
  39     displayHighlights: {[name: string]: string | string[]} = {};
  40     eResourceUrls: EResourceUrl[] = [];
  41
  42     constructor(record: IdlObject, orgId: number, orgDepth?: number) {
  43         this.id = Number(record.id());
  44         this.record = record;
  45         this.orgId = orgId;
  46         this.orgDepth = orgDepth;
  47         this.display = {};
  48         this.attributes = {};
  49         this.bibCallNumber = null;
  50         this.metabibRecords = [];
  51     }
  52
  53     // Get -> Set -> Return bib-level call number
  54     getBibCallNumber(): Promise<string> {
  55
  56         if (this.bibCallNumber !== null) {
  57             return Promise.resolve(this.bibCallNumber);
  58         }
  59
  60         return this.net.request(
  61             'open-ils.cat',
  62             'open-ils.cat.biblio.record.marc_cn.retrieve',
  63             this.id, null, this.orgId
  64         ).toPromise().then(cnArray => {
  65             if (cnArray && cnArray.length > 0) {
  66                 const key1 = Object.keys(cnArray[0])[0];
  67                 this.bibCallNumber = cnArray[0][key1];
  68             } else {
  69                 this.bibCallNumber = '';
  70             }
  71             return this.bibCallNumber;
  72         });
  73     }
  74 }
  75
  76 @Injectable()
  77 export class BibRecordService {
  78
  79     // Cache of bib editor / creator objects
  80     // Assumption is this list will be limited in size.
  81     userCache: {[id: number]: IdlObject};
  82
  83     constructor(
  84         private idl: IdlService,
  85         private net: NetService,
  86         private org: OrgService,
  87         private unapi: UnapiService,
  88         private pcrud: PcrudService
  89     ) {
  90         this.userCache = {};
  91     }
  92
  93     getBibSummary(id: number,
  94         orgId?: number, isStaff?: boolean): Observable<BibRecordSummary> {
  95         return this.getBibSummaries([id], orgId, isStaff);
  96     }
  97
  98     getBibSummaries(bibIds: number[],
  99         orgId?: number, isStaff?: boolean): Observable<BibRecordSummary> {
 100
 101         if (bibIds.length === 0) { return from([]); }
 102         if (!orgId) { orgId = this.org.root().id(); }
 103
 104         let method = 'open-ils.search.biblio.record.catalog_summary';
 105         if (isStaff) { method += '.staff'; }
 106
 107         return this.net.request('open-ils.search', method, orgId, bibIds)
 108         .pipe(map(bibSummary => {
 109             const summary = new BibRecordSummary(bibSummary.record, orgId);
 110             summary.net = this.net; // inject
 111             summary.display = bibSummary.display;
 112             summary.attributes = bibSummary.attributes;
 113             summary.holdCount = bibSummary.hold_count;
 114             summary.holdingsSummary = bibSummary.copy_counts;
 115             summary.eResourceUrls = bibSummary.urls;
 116             return summary;
 117         }));
 118     }
 119
 120     getMetabibSummaries(metabibIds: number[],
 121         orgId?: number, isStaff?: boolean): Observable<BibRecordSummary> {
 122
 123         if (metabibIds.length === 0) { return from([]); }
 124         if (!orgId) { orgId = this.org.root().id(); }
 125
 126         let method = 'open-ils.search.biblio.metabib.catalog_summary';
 127         if (isStaff) { method += '.staff'; }
 128
 129         return this.net.request('open-ils.search', method, orgId, metabibIds)
 130         .pipe(map(metabibSummary => {
 131             const summary = new BibRecordSummary(metabibSummary.record, orgId);
 132             summary.net = this.net; // inject
 133             summary.metabibId = Number(metabibSummary.metabib_id);
 134             summary.metabibRecords = metabibSummary.metabib_records;
 135             summary.display = metabibSummary.display;
 136             summary.attributes = metabibSummary.attributes;
 137             summary.holdCount = metabibSummary.hold_count;
 138             summary.holdingsSummary = metabibSummary.copy_counts;
 139             return summary;
 140         }));
 141     }
 142 }
 143
 144