fix(archive search): [DLCM-2003] facetted search with multiple values on same field cause error

src/app/features/home/helpers/home.helper.ts

@@ -10,6 +10,7 @@ import {RoutesEnum} from "@shared/enums/routes.enum";
 import {ViewModeTableEnum} from "@shared/enums/view-mode-table.enum";
 import {Observable} from "rxjs";
 import {
+  isEmptyArray,
   isNonEmptyString,
   isNotNullNorUndefined,
   isNullOrUndefined,
@@ -101,13 +102,21 @@ export class HomeHelper {
   static getFacetsSelectedForBackend(facetsSelected: MappingObject<string[]>): SearchFacet[] {
     const facetsSelectedForBackend: SearchFacet[] = [];
     MappingObjectUtil.forEach(facetsSelected, (value, key) => {
+      if (isNullOrUndefined(value) || isEmptyArray(value)) {
+        return;
+      }
       if (this.LIST_FACET_USE_OPERATOR_AND.indexOf(key as Enums.Facet.Name) === -1) {
         // FOR OR, equal value =  [ "orgUnitName1", "orgUnitName2" ]
-        facetsSelectedForBackend.push({
+        const facet = {
           field: key,
           type: undefined,
-          equalValue: value.length === 1 ? value[0] : value,
-        });
+        } as SearchFacet;
+        if (value.length === 1) {
+          facet.equalValue = value[0];
+        } else {
+          facet.equalValues = value;
+        }
+        facetsSelectedForBackend.push(facet);
       } else {
         // FOR AND, equal value = "orgUnitName1", need to create a second search facet with "orgUnitName2"
         value.forEach(v => {

src/app/models/index.ts

@@ -336,7 +336,8 @@ export interface User extends UserPartial, BaseResource, UserInfo {
 
 export interface SearchFacet {
   field: string;
-  equalValue: string | string[];
+  equalValue?: string;
+  equalValues?: string[];
   type: undefined | "NOT_MATCH";
 }