Fix for #1602 Insufficient collection information when submitting an article

src/app/shared/object-list/sidebar-search-list-element/sidebar-search-list-element.component.html

@@ -1,6 +1,6 @@
-<ds-truncatable-part [maxLines]="1" [background]="isCurrent() ? 'primary' : 'default'" [showToggle]="false">
+<ds-truncatable-part [background]="isCurrent() ? 'primary' : 'default'" [showToggle]="false">
   <div [ngClass]="isCurrent() ? 'text-light' : 'text-body'"
-       [innerHTML]="(parentTitle$ && parentTitle$ | async) ? (parentTitle$ | async) : ('home.breadcrumbs' | translate)"></div>
+       [innerHTML]="(hierarchicalTitle$ && hierarchicalTitle$ | async) ? (hierarchicalTitle$ | async) : ('home.breadcrumbs' | translate)"></div>
 </ds-truncatable-part>
 <ds-truncatable-part [maxLines]="1" [background]="isCurrent() ? 'primary' : 'default'" [showToggle]="false">
   <div class="font-weight-bold"

src/app/shared/object-list/sidebar-search-list-element/sidebar-search-list-element.component.ts

@@ -13,8 +13,10 @@
   of as observableOf,
 } from 'rxjs';
 import {
+  catchError,
   find,
   map,
+  switchMap,
 } from 'rxjs/operators';
 
 import { DSONameService } from '../../../core/breadcrumbs/dso-name.service';
@@ -50,6 +52,11 @@
    */
   parentTitle$: Observable<string>;
 
+  /**
+   * Observable for the hierarchical title i.e community > subcommunity > collection
+   */
+  hierarchicalTitle$: Observable<string>;
+
   /**
    * A description to display below the title
    */
@@ -69,6 +76,7 @@
     super.ngOnInit();
     if (hasValue(this.dso)) {
       this.parentTitle$ = this.getParentTitle();
+      this.hierarchicalTitle$ = this.getHierarchicalName();
       this.description = this.getDescription();
     }
   }
@@ -92,6 +100,38 @@
     );
   }
 
+  /**
+   * Get the title of the object's parent
+   * keep on Retrieving recursively the parent by using the object's parent link and retrieving its 'dc.title' metadata
+   * and build a heirarchical name by concating the parent's names
+   */
+  getHierarchicalName(): Observable<string> {
+    return this.getParent().pipe(
+      switchMap((parentRD: RemoteData<DSpaceObject>) => {
+        if (hasValue(parentRD) && hasValue(parentRD.payload)) {
+          const parentName$: string = this.dsoNameService.getName(parentRD.payload);
+          if (parentName$) {
+            return this.createInstanceFromDSpaceObject(parentRD.payload).getHierarchicalName().pipe(
+              map((ancestorName: string) => ancestorName ? `${ancestorName} > ${parentName$}` : parentName$),
+            );
+          }
+          return observableOf('');
+        }
+        return observableOf('');
+      }),
+      catchError(() => observableOf('')),
+    );
+  }
+
+  /**
+   * Utility method to create an instance of the current class from a DSpaceObject
+   */
+  private createInstanceFromDSpaceObject(dso: DSpaceObject): this {
+    const instance = Object.create(this);
+    instance.dso = dso;
+    return instance;
+  }
+
   /**
    * Get the parent of the object
    */

src/app/shared/truncatable/truncatable-part/truncatable-part.component.scss

@@ -9,3 +9,8 @@
 .removeFaded.content::after {
   display: none;
 }
+
+.content {
+  white-space: normal;
+  overflow: visible;
+}