forked from geolba/tethys.frontend
CTS link opens in new window. New comments on search related classes and functions
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@ -10,7 +10,7 @@
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<a class="navbar-item" href="/">
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<!-- <img src="./assets/images/TETHYS-Logo.svg" width="240px" height="86" alt="TETHYS Logo" /> -->
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<img src="./assets/images/TETHYS-Logo.svg" width="240" height="86" />
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<a href="https://doi.org/10.34894/TKWVFL"><img src="./assets/images/cts-logo.png" width="80" height="80" /></a>
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<a href="https://doi.org/10.34894/TKWVFL" target="_blank"><img src="./assets/images/cts-logo.png" width="80" height="80" /></a>
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</a>
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<a
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id="menu-icon"
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@ -16,7 +16,7 @@ class DatasetService {
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terms%22%2C%20field%3A%20%22year%22%20%7D&json.facet.author=%7B%20type%3A%20%22terms%22%2C%20field%3A%20%22author_facet%22%2C%20limit%3A%20-1%20%7D
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*/
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// for the autocomplete search
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// For the autocomplete search. Method to perform a search based on a term
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public searchTerm(term: string, solrCore: string, solrHost: string): Observable<Dataset[]> {
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// solr endpoint
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const host = "https://" + solrHost;
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@ -48,13 +48,14 @@ class DatasetService {
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wt: "json",
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};
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// Make API call to Solr and return the result
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const stations = api.get<SolrResponse>(base, q_params).pipe(map((res: SolrResponse) => res.response.docs));
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return stations;
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}
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/* Only one facet => Author: Coric, Stjepan (16)
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/* E.g. Only one facet => Author: Coric, Stjepan (16)
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https://tethys.at/solr/rdr_data/select?&0=fl%3Did%2Clicence%2Cserver_date_published%2Cabstract_output%2Cidentifier%2Ctitle_output%2Ctitle_additional%2Cauthor%2Csubject%2Cdoctype&q=%2A
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&q.op=or&defType=edismax&qf=title%5E3%20author%5E2%20subject%5E1&indent=on&wt=json&rows=10&fq=author%3A%28%22Coric%2C%20Stjepan%22%29&start=0&sort=server_date_published%20desc&facet=on
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&json.facet.language=%7B%20type%3A%20%22terms%22%2C%20field%3A%20%22language%22%20%7D
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@ -62,6 +63,7 @@ class DatasetService {
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&json.facet.year=%7B%20type%3A%20%22terms%22%2C%20field%3A%20%22year%22%20%7D
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&json.facet.author=%7B%20type%3A%20%22terms%22%2C%20field%3A%20%22author_facet%22%2C%20limit%3A%20-1%20%7D */
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// Method to perform a faceted search
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public facetedSearch(
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suggestion: Suggestion | string,
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activeFilterCategories: ActiveFilterCategories,
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@ -69,6 +71,7 @@ class DatasetService {
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solrHost: string,
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start?: string, // Starting page
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): Observable<SolrResponse> {
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// Construct Solr query parameters
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const host = "https://" + solrHost;
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const path = "/solr/" + solrCore + "/select?";
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const base = host + path;
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@ -86,6 +89,7 @@ class DatasetService {
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"doctype",
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].toString();
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// Determine search term, query operator, and query fields based on the suggestion type
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let term, queryOperator, qfFields;
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if (typeof suggestion === "string") {
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term = suggestion + "*";
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@ -97,10 +101,11 @@ class DatasetService {
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qfFields = undefined;
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}
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// Set default value for start if not provided
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if (start === undefined) start = "0";
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// Construct filter fields based on active filter categories
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const filterFields = new Array<string>();
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if (Object.keys(activeFilterCategories).length > 0) {
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/* Declare variable prop with a type that is a key of the activeFilterCategories. The 'keyof typeof' activeFilterCategories type represents all possible keys
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that can exist on the activeFilterCategories --> prop can only be assigned a value that is a key of the activeFilterCategories object */
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@ -109,11 +114,13 @@ class DatasetService {
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const filterItems = activeFilterCategories[prop];
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filterItems.forEach(function (value: string) {
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filterFields.push(prop + ':("' + value + '")');
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// e.g. Array [ 'subject:("Vektordaten")', 'author:("GeoSphere Austria, ")' ]
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});
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}
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}
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// https://solr.apache.org/guide/8_4/json-request-api.html
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// Construct Solr query parameters
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const q_params = {
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"0": "fl=" + fields,
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q: term,
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@ -135,12 +142,26 @@ class DatasetService {
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"json.facet.year": '{ type: "terms", field: "year" }',
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"json.facet.author": '{ type: "terms", field: "author_facet", limit: -1 }',
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};
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/* E.g.
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{"0":"fl=id,licence,server_date_published,abstract_output,identifier,title_output,title_additional,author,subject,doctype","q":"*","q.op":"or","defType":"edismax",
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"qf":"title^3 author^2 subject^1",
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"indent":"on","wt":"json","rows":10,
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"fq":["subject:(\"Vektordaten\")","author:(\"GeoSphere Austria, \")"],
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"start":"0","sort":"server_date_published desc","facet":"on",
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"json.facet.language":"{ type: \"terms\", field: \"language\" }",
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"json.facet.subject":"{ type: \"terms\", field: \"subject\", limit: -1 }",
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"json.facet.year":"{ type: \"terms\", field: \"year\" }",
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"json.facet.author":"{ type: \"terms\", field: \"author_facet\", limit: -1 }"}
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*/
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// console.log(JSON.stringify(q_params));
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// Make API call to Solr and return the result
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const stations = api.get<SolrResponse>(base, q_params);
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return stations;
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}
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// Method to fetch years
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public getYears(): Observable<string[]> {
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const host = VUE_API;
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const path = "/api/years";
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@ -150,6 +171,7 @@ class DatasetService {
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return years;
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}
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// Method to fetch documents for a specific year
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public getDocuments(year: string): Observable<Array<DbDataset>> {
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const host = VUE_API;
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const path = "/api/sitelinks/" + year;
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@ -159,6 +181,7 @@ class DatasetService {
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return documents;
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}
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// Method to fetch a dataset by its ID
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public getDataset(id: number): Observable<DbDataset> {
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const host = VUE_API;
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const path = "/api/dataset/" + id;
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@ -168,6 +191,7 @@ class DatasetService {
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return dataset;
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}
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// Method to fetch a dataset by its DOI
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public getDatasetByDoi(doi: string): Observable<DbDataset> {
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const host = VUE_API;
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const path = "/api/dataset/10.24341/tethys." + doi;
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@ -177,6 +201,7 @@ class DatasetService {
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return dataset;
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}
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// Method to prepare dataset object
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private prepareDataset(datasetObj: DbDataset): DbDataset {
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const dataset = deserialize<DbDataset>(DbDataset, JSON.stringify(datasetObj));
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dataset.url = document.documentURI;
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@ -13,6 +13,7 @@ import { SOLR_HOST, SOLR_CORE } from "@/constants";
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import { IPagination } from "@/models/pagination";
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import PaginationComponent from "@/components/PaginationComponent.vue";
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// Decorate the component and define its name and components
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@Component({
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name: "SearchViewComponent",
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components: {
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@ -23,6 +24,8 @@ import PaginationComponent from "@/components/PaginationComponent.vue";
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PaginationComponent,
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},
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})
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// Define the SearchViewComponent class
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export default class SearchViewComponent extends Vue {
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@Prop()
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display!: string;
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@ -53,6 +56,7 @@ export default class SearchViewComponent extends Vue {
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private error = "";
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// Computed property to get search term as string
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get stringSearchTerm(): string {
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if (typeof this.searchTerm === "string") {
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return this.searchTerm;
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@ -63,6 +67,7 @@ export default class SearchViewComponent extends Vue {
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}
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}
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// Method to check if a search term is present
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hasSearchTerm(): boolean {
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if (typeof this.searchTerm === "string" && this.searchTerm !== "") {
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return true;
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@ -75,14 +80,18 @@ export default class SearchViewComponent extends Vue {
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// getKeyName(value: string) {
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// return Object.entries(Suggestion).find(([key, val]) => val === value)?.[0];
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// }
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// Method to get enum key by enum value
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getEnumKeyByEnumValue<T extends { [index: string]: string }>(myEnum: T, enumValue: string): keyof T | null {
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const keys = Object.keys(myEnum).filter((x) => myEnum[x] == enumValue);
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return keys.length > 0 ? keys[0] : null;
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// return keys[0];
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}
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// Lifecycle hook: executed before the component is mounted
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beforeMount(): void {
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// this.rdrAPI = new DatasetService();
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// Trigger search based on provided display and type props
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if (this.display != "" && this.type != undefined) {
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const enumKey: "Title" | "Author" | "Subject" | null = this.getEnumKeyByEnumValue(SearchType, this.type);
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if (enumKey) {
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@ -98,12 +107,14 @@ export default class SearchViewComponent extends Vue {
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}
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}
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// Method to trigger a search
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onSearch(suggestion: Suggestion | string): void {
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// Reset active filter categories and facet results
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this.activeFilterCategories = new ActiveFilterCategories();
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this.facets = new FacetResults();
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this.searchTerm = suggestion;
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/* The method returns an Observable, and the code subscribes to this Observable to handle the response. If the response is successful, it calls the dataHandler method
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/* Perform faceted search. The method returns an Observable, and the code subscribes to this Observable to handle the response. If the response is successful, it calls the dataHandler method
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with the Solr response as a parameter. If there is an error, it calls the errorHandler method with the error message as a parameter */
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DatasetService.facetedSearch(suggestion, this.activeFilterCategories, this.solr.core, this.solr.host, undefined).subscribe({
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next: (res: SolrResponse) => this.dataHandler(res),
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@ -111,12 +122,13 @@ export default class SearchViewComponent extends Vue {
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});
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}
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// Method to handle search response
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private dataHandler(res: SolrResponse, filterItem?: FacetItem): void {
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// Update results
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this.results = res.response.docs;
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this.numFound = res.response.numFound;
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// pagination
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// Update pagination
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this.pagination["total"] = res.response.numFound;
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this.pagination["perPage"] = res.responseHeader.params.rows as number;
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this.pagination["data"] = res.response.docs;
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@ -124,8 +136,11 @@ export default class SearchViewComponent extends Vue {
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const facet_fields: FacetFields = res.facets;
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/* This code declares a variable prop with a type of keys of the facet_fields object. The keyof typeof facet_fields type represents the keys of the facet_fields object.
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This means that prop can only hold values that are keys of the facet_fields object. */
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let prop: keyof typeof facet_fields;
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// Iterate through facet fields
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for (prop in facet_fields) {
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const facetCategory = facet_fields[prop];
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if (facetCategory.buckets) {
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@ -133,55 +148,70 @@ export default class SearchViewComponent extends Vue {
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let facetValues = facetItems.map((facetItem) => {
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let rObj: FacetItem;
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// Check if current facet item matches filter item
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if (filterItem?.val == facetItem.val) {
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rObj = filterItem;
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} else if (this.facets[prop]?.some((e) => e.val === facetItem.val)) {
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// console.log(facetValue + " is included")
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// Update existing facet item with new count
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const indexOfFacetValue = this.facets[prop].findIndex((i) => i.val === facetItem.val);
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// console.log(indexOfFacetValue);
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rObj = this.facets[prop][indexOfFacetValue];
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rObj.count = facetItem.count;
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// rObj = new FacetItem(val, count);
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} else {
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// Create new facet item
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rObj = new FacetItem(facetItem.val, facetItem.count);
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}
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return rObj;
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});
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// Filter out null values and values with count <= 0
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facetValues = facetValues.filter(function (el) {
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return el != null && el.count > 0;
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});
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// this.facets[prop] = facetCategory;
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// Update facet values
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this.facets[prop] = facetValues;
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}
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}
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}
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// Method to handle search errors
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private errorHandler(err: string): void {
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this.error = err;
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}
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// Method to handle pagination
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onMenuClick(page: number) {
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this.pagination.currentPage = page;
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const start = page * this.pagination.perPage - this.pagination.perPage;
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// Trigger new search with updated pagination parameters
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DatasetService.facetedSearch(this.searchTerm, this.activeFilterCategories, this.solr.core, this.solr.host, start.toString()).subscribe(
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(res: SolrResponse) => this.dataHandler(res),
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(error: string) => this.errorHandler(error),
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);
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}
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// Method to handle facet filtering
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onFilter(facetItem: FacetItem): void {
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// Reset current page
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this.pagination.currentPage = 1;
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// console.log(facetItem.val);
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// if (!this.activeFilterCategories.hasOwnProperty(facetItem.category)) {
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// Check if filter item already exists
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if (!Object.prototype.hasOwnProperty.call(this.activeFilterCategories, facetItem.category)) {
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this.activeFilterCategories[facetItem.category] = new Array<string>();
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}
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// if (!this.activeFilterCategories[facetItem.category].some((e) => e === facetItem.val)) {
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if (!this.activeFilterCategories[facetItem.category].some((e) => e === facetItem.val)) {
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this.activeFilterCategories[facetItem.category].push(facetItem.val);
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// Check if filter item is not already applied
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if (!this.activeFilterCategories[facetItem.category].some((e) => e === facetItem.val)) {
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// Add filter item to active filter categories
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this.activeFilterCategories[facetItem.category].push(facetItem.val);
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// Trigger new search with updated filter
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DatasetService.facetedSearch(this.searchTerm, this.activeFilterCategories, this.solr.core, this.solr.host, undefined).subscribe(
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(res: SolrResponse) => this.dataHandler(res, facetItem),
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(error: string) => this.errorHandler(error),
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@ -189,9 +219,11 @@ export default class SearchViewComponent extends Vue {
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}
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}
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// Method to clear facet category filter
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onClearFacetCategory(categoryName: string): void {
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delete this.activeFilterCategories[categoryName];
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// Trigger new search with updated filter
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DatasetService.facetedSearch(this.searchTerm, this.activeFilterCategories, this.solr.core, this.solr.host, undefined).subscribe({
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next: (res: SolrResponse) => {
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this.results = res.response.docs;
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@ -214,6 +246,7 @@ export default class SearchViewComponent extends Vue {
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let rObj: FacetItem;
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if (this.facets[prop]?.some((e) => e.val === facetItem.val)) {
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// console.log(facetValue + " is included")
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// Update existing facet item with new count
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const indexOfFacetValue = this.facets[prop].findIndex((i) => i.val === facetItem.val);
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// console.log(indexOfFacetValue);
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rObj = this.facets[prop][indexOfFacetValue];
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@ -224,6 +257,7 @@ export default class SearchViewComponent extends Vue {
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rObj.active = false;
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}
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} else {
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// Create new facet item
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rObj = new FacetItem(facetItem.val, facetItem.count);
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}
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return rObj;
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