Use collection view fields

src/app/core/model/sdr/repo/abstract-sdr-repo.ts

@@ -146,6 +146,9 @@ export abstract class AbstractSdrRepo<R extends SdrResource> implements SdrRepo<
       if (request.query.defaultField && request.query.defaultField.length > 0) {
         parameters.push(`df=${request.query.defaultField}`);
       }
+      if (request.query.fields && request.query.fields.length > 0) {
+        parameters.push(`fl=${request.query.fields}`);
+      }
     }
 
     if (request.highlight && request.highlight.fields.length > 0) {

src/app/core/model/view/collection-view.ts

@@ -69,6 +69,7 @@ export interface CollectionView extends View {
   readonly templates: any;
   templateFunctions?: any;
   readonly styles: string[];
+  readonly fields: string[];
   readonly facets: Facet[];
   readonly filters: Filter[];
   readonly boosts: Boost[];

src/app/shared/result-view/result-view.component.spec.ts

@@ -29,6 +29,7 @@ describe('ResultViewComponent', () => {
         default: (resource: any) => component.view.templates.default,
       },
       styles: [],
+      fields: [],
       facets: [],
       filters: [],
       boosts: [],

src/app/shared/search-box/search-box.component.html

@@ -30,7 +30,7 @@
 
     <ng-template #helpLinks>
       <small class="d-block text-muted text-right">
-        <a [routerLink]="getDiscoveryRouterLink()" [queryParams]="getDiscoveryQueryParams()" queryParamsHandling="merge">{{ 'SHARED.SEARCH_BOX.DISCOVERY' | translate }}</a>
+        <a [routerLink]="getDiscoveryRouterLink()" [queryParams]="getDiscoveryQueryParams()">{{ 'SHARED.SEARCH_BOX.DISCOVERY' | translate }}</a>
         <span> | </span>
         <!-- <a [routerLink]="['/about']" fragment="searchTips">{{ 'SHARED.SEARCH_BOX.SEARCH_TIPS' | translate }}</a> -->
         <a href="https://scholars.library.tamu.edu/about_scholars/#searchTips">{{ 'SHARED.SEARCH_BOX.SEARCH_TIPS' | translate }}</a>

src/app/shared/utilities/discovery.utility.ts

@@ -25,6 +25,9 @@ const buildQuery = (queryParams: Params): Queryable => {
   if (queryParams.df && queryParams.df.length > 0) {
     query.defaultField = queryParams.df;
   }
+  if (queryParams.fl && queryParams.fl.length > 0) {
+    query.fields = queryParams.fl;
+  }
   return query as Queryable;
 };
 

src/app/shared/utilities/view.utility.ts

@@ -7,15 +7,23 @@ import { Direction } from '../../core/model/request';
 
 const addFacetsToQueryParams = (queryParams: Params, collectionView: CollectionView): void => {
   if (collectionView.facets && collectionView.facets.length > 0) {
-    let facets = '';
+    queryParams.facets = '';
     collectionView.facets.forEach((facet: Facet) => {
-      facets += facets.length > 0 ? `,${facet.field}` : facet.field;
+      queryParams.facets += queryParams.facets.length > 0 ? `,${facet.field}` : facet.field;
       ['type', 'pageSize', 'pageNumber'].forEach((key: string) => {
         queryParams[`${facet.field}.${key}`] = facet[key];
       });
       queryParams[`${facet.field}.sort`] = `${facet.sort},${facet.direction}`;
     });
-    queryParams.facets = facets;
+  }
+};
+
+const addFieldsToQueryParams = (queryParams: Params, collectionView: CollectionView): void => {
+  if (collectionView.fields && collectionView.fields.length > 0) {
+    queryParams.fl = '';
+    collectionView.fields.forEach((field: string) => {
+      queryParams.fl += queryParams.fl.length > 0 ? `,${field}` : field;
+    });
   }
 };
 
@@ -70,15 +78,18 @@ const addHighlightsToQueryParams = (queryParams: Params, discoveryView: Discover
 const addExportToQueryParams = (queryParams: Params, collectionView: CollectionView): void => {
   if (collectionView.export && collectionView.export.length > 0) {
     queryParams.export = [];
+    queryParams.fl = '';
     collectionView.export.forEach((exp: Export) => {
       queryParams.export.push(`${exp.valuePath},${exp.columnHeader}`);
+      queryParams.fl += queryParams.fl.length > 0 ? `,${exp.valuePath}` : exp.valuePath;
     });
   }
 };
 
 const getQueryParams = (collectionView: CollectionView): Params => {
   const queryParams: Params = {};
   queryParams.collection = 'individual';
+  addFieldsToQueryParams(queryParams, collectionView);
   addFacetsToQueryParams(queryParams, collectionView);
   addFiltersToQueryParams(queryParams, collectionView);
   addBoostToQueryParams(queryParams, collectionView);