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     copies: any[];
  42
  43     constructor(record: IdlObject, orgId: number, orgDepth?: number) {
  44         this.id = Number(record.id());
  45         this.record = record;
  46         this.orgId = orgId;
  47         this.orgDepth = orgDepth;
  48         this.display = {};
  49         this.attributes = {};
  50         this.bibCallNumber = null;
  51         this.metabibRecords = [];
  52     }
  53
  54     // Get -> Set -> Return bib-level call number
  55     getBibCallNumber(): Promise<string> {
  56
  57         if (this.bibCallNumber !== null) {
  58             return Promise.resolve(this.bibCallNumber);
  59         }
  60
  61         return this.net.request(
  62             'open-ils.cat',
  63             'open-ils.cat.biblio.record.marc_cn.retrieve',
  64             this.id, null, this.orgId
  65         ).toPromise().then(cnArray => {
  66             if (cnArray && cnArray.length > 0) {
  67                 const key1 = Object.keys(cnArray[0])[0];
  68                 this.bibCallNumber = cnArray[0][key1];
  69             } else {
  70                 this.bibCallNumber = '';
  71             }
  72             return this.bibCallNumber;
  73         });
  74     }
  75 }
  76
  77 @Injectable()
  78 export class BibRecordService {
  79
  80     // Cache of bib editor / creator objects
  81     // Assumption is this list will be limited in size.
  82     userCache: {[id: number]: IdlObject};
  83
  84     constructor(
  85         private idl: IdlService,
  86         private net: NetService,
  87         private org: OrgService,
  88         private unapi: UnapiService,
  89         private pcrud: PcrudService
  90     ) {
  91         this.userCache = {};
  92     }
  93
  94     getBibSummary(id: number,
  95         orgId?: number, isStaff?: boolean): Observable<BibRecordSummary> {
  96         return this.getBibSummaries([id], orgId, isStaff);
  97     }
  98
  99     getBibSummaries(bibIds: number[], orgId?: number,
 100         isStaff?: boolean, options?: any): Observable<BibRecordSummary> {
 101
 102         if (bibIds.length === 0) { return from([]); }
 103         if (!orgId) { orgId = this.org.root().id(); }
 104
 105         let method = 'open-ils.search.biblio.record.catalog_summary';
 106         if (isStaff) { method += '.staff'; }
 107
 108         return this.net.request('open-ils.search', method, orgId, bibIds, options)
 109         .pipe(map(bibSummary => {
 110             const summary = new BibRecordSummary(bibSummary.record, orgId);
 111             summary.net = this.net; // inject
 112             summary.display = bibSummary.display;
 113             summary.attributes = bibSummary.attributes;
 114             summary.holdCount = bibSummary.hold_count;
 115             summary.holdingsSummary = bibSummary.copy_counts;
 116             summary.eResourceUrls = bibSummary.urls;
 117             summary.copies = bibSummary.copies;
 118
 119             return summary;
 120         }));
 121     }
 122
 123     getMetabibSummaries(metabibIds: number[],
 124         orgId?: number, isStaff?: boolean, options?: any): Observable<BibRecordSummary> {
 125
 126         if (metabibIds.length === 0) { return from([]); }
 127         if (!orgId) { orgId = this.org.root().id(); }
 128
 129         let method = 'open-ils.search.biblio.metabib.catalog_summary';
 130         if (isStaff) { method += '.staff'; }
 131
 132         return this.net.request('open-ils.search', method, orgId, metabibIds, options)
 133         .pipe(map(metabibSummary => {
 134             const summary = new BibRecordSummary(metabibSummary.record, orgId);
 135             summary.net = this.net; // inject
 136             summary.metabibId = Number(metabibSummary.metabib_id);
 137             summary.metabibRecords = metabibSummary.metabib_records;
 138             summary.display = metabibSummary.display;
 139             summary.attributes = metabibSummary.attributes;
 140             summary.holdCount = metabibSummary.hold_count;
 141             summary.holdingsSummary = metabibSummary.copy_counts;
 142             summary.copies = metabibSummary.copies;
 143
 144             return summary;
 145         }));
 146     }
 147 }
 148
 149