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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | 1x 1x 1x 1x 1x 84x 84x 84x 84x 84x 84x 84x 84x 84x 249x 249x 249x 901x | import { Component, Input, OnInit } from '@angular/core'; import { AngularFirestore } from '@angular/fire/firestore'; import { Observable } from 'rxjs'; import { map } from 'rxjs/internal/operators'; import { TaxonomyModel } from '../../models'; import { AlertService, PageService } from '../../services'; /** * Active Tags Component */ @Component({ selector: 'app-active-tags', templateUrl: './active-tags.component.html' }) export class ActiveTagsComponent implements OnInit { /** limit number of tags to show */ @Input() readonly tagLimit = 10; /** css class of header */ @Input() readonly headerCssClass = ''; /** taxonomy object array */ taxonomyList$: Observable<Array<TaxonomyModel>>; /** * constructor of ActiveTagsComponent * @param alert: AlertService * @param pageService: PageService * @param afs: AngularFirestore */ constructor(private readonly alert: AlertService, public pageService: PageService, private readonly afs: AngularFirestore) { } /** * ngOnInit */ ngOnInit(): void { this.getTaxonomyList(); } /** * get taxonomy list */ getTaxonomyList(): void { this.taxonomyList$ = this.afs.collection(`taxonomy_${this.pageService.locale}`, ref => ref.orderBy('orderNo') .limit(this.tagLimit) ) .snapshotChanges() .pipe(map(taxonomyList => taxonomyList.map(taxonomy => { const id = taxonomy.payload.doc.id; const data = taxonomy.payload.doc.data() as TaxonomyModel; return { id, ...data }; }))); } /** * track content object array by index * @param index: index no * @param item: object */ trackByIndex(index, item): number { return index; } } |