Open-ILS/src/eg2/src/app/staff/catalog/cnbrowse/results.component.ts

   1 import {Component, OnInit, OnDestroy} from '@angular/core';
   2 import {ActivatedRoute, Router, ParamMap} from '@angular/router';
   3 import {Subscription} from 'rxjs';
   4 import {IdlObject} from '@eg/core/idl.service';
   5 import {CatalogService} from '@eg/share/catalog/catalog.service';
   6 import {BibRecordService} from '@eg/share/catalog/bib-record.service';
   7 import {CatalogUrlService} from '@eg/share/catalog/catalog-url.service';
   8 import {CatalogSearchContext, CatalogSearchState} from '@eg/share/catalog/search-context';
   9 import {StaffCatalogService} from '../catalog.service';
  10 import {BibRecordSummary} from '@eg/share/catalog/bib-record.service';
  11
  12 @Component({
  13   selector: 'eg-catalog-cn-browse-results',
  14   templateUrl: 'results.component.html'
  15 })
  16 export class CnBrowseResultsComponent implements OnInit, OnDestroy {
  17
  18     searchContext: CatalogSearchContext;
  19     results: any[];
  20     routeSub: Subscription;
  21
  22     constructor(
  23         private router: Router,
  24         private route: ActivatedRoute,
  25         private cat: CatalogService,
  26         private bib: BibRecordService,
  27         private catUrl: CatalogUrlService,
  28         private staffCat: StaffCatalogService
  29     ) {}
  30
  31     ngOnInit() {
  32         this.searchContext = this.staffCat.searchContext;
  33         this.routeSub = this.route.queryParamMap.subscribe(
  34             (params: ParamMap) => this.browseByUrl(params)
  35         );
  36     }
  37
  38     ngOnDestroy() {
  39         this.routeSub.unsubscribe();
  40     }
  41
  42     browseByUrl(params: ParamMap): void {
  43         this.catUrl.applyUrlParams(this.searchContext, params);
  44         const cbs = this.searchContext.cnBrowseSearch;
  45
  46         if (cbs.isSearchable()) {
  47             this.results = [];
  48             this.cat.cnBrowse(this.searchContext)
  49                 .subscribe(results => this.processResults(results));
  50         }
  51     }
  52
  53     processResults(results: any[]) {
  54         this.results = results;
  55
  56         const depth = this.searchContext.global ?
  57             this.searchContext.org.root().ou_type().depth() :
  58             this.searchContext.searchOrg.ou_type().depth();
  59
  60         const bibIds = this.results.map(r => r.record().id());
  61         const distinct = (value: any, index: number, self: Array<number>) => {
  62             return self.indexOf(value) === index;
  63         };
  64
  65         const bres: IdlObject[] = [];
  66         this.bib.getBibSummary(
  67             bibIds.filter(distinct),
  68             this.searchContext.searchOrg.id(), depth
  69         ).subscribe(
  70             summary => {
  71                 // Response order not guaranteed.  Match the summary
  72                 // object up with its response object.  A bib may be
  73                 // linked to multiple call numbers
  74                 const bibResults = this.results.filter(
  75                     r => Number(r.record().id()) === summary.id);
  76
  77                 bres.push(summary.record);
  78
  79                 // Use _ since result is an 'acn' object.
  80                 bibResults.forEach(r => r._bibSummary = summary);
  81             },
  82             err => {},
  83             ()  => {
  84                 this.bib.fleshBibUsers(bres);
  85             }
  86         );
  87     }
  88
  89     browseIsDone(): boolean {
  90         return this.searchContext.searchState === CatalogSearchState.COMPLETE;
  91     }
  92
  93     browseIsActive(): boolean {
  94         return this.searchContext.searchState === CatalogSearchState.SEARCHING;
  95     }
  96
  97     browseHasResults(): boolean {
  98         return this.browseIsDone() && this.results.length > 0;
  99     }
 100
 101     prevPage() {
 102         this.searchContext.cnBrowseSearch.offset--;
 103         this.staffCat.cnBrowse();
 104     }
 105
 106     nextPage() {
 107         this.searchContext.cnBrowseSearch.offset++;
 108         this.staffCat.cnBrowse();
 109     }
 110
 111     /**
 112      * Propagate the search params along when navigating to each record.
 113      */
 114     navigateToRecord(summary: BibRecordSummary) {
 115         const params = this.catUrl.toUrlParams(this.searchContext);
 116
 117         this.router.navigate(
 118             ['/staff/catalog/record/' + summary.id], {queryParams: params});
 119     }
 120 }
 121
 122