79327: Fix item-level statistics pages

src/app/+item-page/edit-item-page/abstract-item-update/abstract-item-update.component.ts

@@ -15,9 +15,9 @@ import { RemoteData } from '../../../core/data/remote-data';
 import { AbstractTrackableComponent } from '../../../shared/trackable/abstract-trackable.component';
 import { environment } from '../../../../environments/environment';
 import { getItemPageRoute } from '../../item-page-routing-paths';
-import { ITEM_PAGE_LINKS_TO_FOLLOW } from '../../item-page.resolver';
 import { getAllSucceededRemoteData } from '../../../core/shared/operators';
 import { hasValue } from '../../../shared/empty.util';
+import { ITEM_PAGE_LINKS_TO_FOLLOW } from '../../item.resolver';
 
 @Component({
   selector: 'ds-abstract-item-update',

src/app/+item-page/item-page.resolver.ts

@@ -12,31 +12,20 @@ import { ResolvedAction } from '../core/resolving/resolver.actions';
 import { map } from 'rxjs/operators';
 import { hasValue } from '../shared/empty.util';
 import { getItemPageRoute } from './item-page-routing-paths';
+import { ItemResolver } from './item.resolver';
 
 /**
- * The self links defined in this list are expected to be requested somewhere in the near future
- * Requesting them as embeds will limit the number of requests
- */
-export const ITEM_PAGE_LINKS_TO_FOLLOW: FollowLinkConfig<Item>[] = [
-  followLink('owningCollection', undefined, true, true, true,
-    followLink('parentCommunity', undefined, true, true, true,
-      followLink('parentCommunity'))
-  ),
-  followLink('bundles', new FindListOptions(), true, true, true, followLink('bitstreams')),
-  followLink('relationships'),
-  followLink('version', undefined, true, true, true, followLink('versionhistory')),
-];
-
-/**
- * This class represents a resolver that requests a specific item before the route is activated
+ * This class represents a resolver that requests a specific item before the route is activated and will redirect to the
+ * entity page
  */
 @Injectable()
-export class ItemPageResolver implements Resolve<RemoteData<Item>> {
+export class ItemPageResolver extends ItemResolver {
   constructor(
-    private itemService: ItemDataService,
-    private store: Store<any>,
-    private router: Router
+    protected itemService: ItemDataService,
+    protected store: Store<any>,
+    protected router: Router
   ) {
+    super(itemService, store, router);
   }
 
   /**
@@ -47,12 +36,7 @@ export class ItemPageResolver implements Resolve<RemoteData<Item>> {
    * or an error if something went wrong
    */
   resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<RemoteData<Item>> {
-    const itemRD$ = this.itemService.findById(route.params.id,
-      true,
-      false,
-      ...ITEM_PAGE_LINKS_TO_FOLLOW
-    ).pipe(
-      getFirstCompletedRemoteData(),
+    return super.resolve(route, state).pipe(
       map((rd: RemoteData<Item>) => {
         if (rd.hasSucceeded && hasValue(rd.payload)) {
           const itemRoute = getItemPageRoute(rd.payload);
@@ -66,11 +50,5 @@ export class ItemPageResolver implements Resolve<RemoteData<Item>> {
         return rd;
       })
     );
-
-    itemRD$.subscribe((itemRD: RemoteData<Item>) => {
-      this.store.dispatch(new ResolvedAction(state.url, itemRD.payload));
-    });
-
-    return itemRD$;
   }
 }

src/app/+item-page/item.resolver.ts

@@ -0,0 +1,64 @@
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot } from '@angular/router';
+import { Observable } from 'rxjs';
+import { RemoteData } from '../core/data/remote-data';
+import { ItemDataService } from '../core/data/item-data.service';
+import { Item } from '../core/shared/item.model';
+import { followLink, FollowLinkConfig } from '../shared/utils/follow-link-config.model';
+import { FindListOptions } from '../core/data/request.models';
+import { getFirstCompletedRemoteData } from '../core/shared/operators';
+import { Store } from '@ngrx/store';
+import { ResolvedAction } from '../core/resolving/resolver.actions';
+import { map } from 'rxjs/operators';
+import { hasValue } from '../shared/empty.util';
+import { getItemPageRoute } from './item-page-routing-paths';
+
+/**
+ * The self links defined in this list are expected to be requested somewhere in the near future
+ * Requesting them as embeds will limit the number of requests
+ */
+export const ITEM_PAGE_LINKS_TO_FOLLOW: FollowLinkConfig<Item>[] = [
+  followLink('owningCollection', undefined, true, true, true,
+    followLink('parentCommunity', undefined, true, true, true,
+      followLink('parentCommunity'))
+  ),
+  followLink('bundles', new FindListOptions(), true, true, true, followLink('bitstreams')),
+  followLink('relationships'),
+  followLink('version', undefined, true, true, true, followLink('versionhistory')),
+];
+
+/**
+ * This class represents a resolver that requests a specific item before the route is activated
+ */
+@Injectable()
+export class ItemResolver implements Resolve<RemoteData<Item>> {
+  constructor(
+    protected itemService: ItemDataService,
+    protected store: Store<any>,
+    protected router: Router
+  ) {
+  }
+
+  /**
+   * Method for resolving an item based on the parameters in the current route
+   * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
+   * @param {RouterStateSnapshot} state The current RouterStateSnapshot
+   * @returns Observable<<RemoteData<Item>> Emits the found item based on the parameters in the current route,
+   * or an error if something went wrong
+   */
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<RemoteData<Item>> {
+    const itemRD$ = this.itemService.findById(route.params.id,
+      true,
+      false,
+      ...ITEM_PAGE_LINKS_TO_FOLLOW
+    ).pipe(
+      getFirstCompletedRemoteData(),
+    );
+
+    itemRD$.subscribe((itemRD: RemoteData<Item>) => {
+      this.store.dispatch(new ResolvedAction(state.url, itemRD.payload));
+    });
+
+    return itemRD$;
+  }
+}

src/app/core/breadcrumbs/item-breadcrumb.resolver.ts

@@ -4,7 +4,7 @@ import { ItemDataService } from '../data/item-data.service';
 import { Item } from '../shared/item.model';
 import { DSOBreadcrumbResolver } from './dso-breadcrumb.resolver';
 import { FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
-import { ITEM_PAGE_LINKS_TO_FOLLOW } from '../../+item-page/item-page.resolver';
+import { ITEM_PAGE_LINKS_TO_FOLLOW } from '../../+item-page/item.resolver';
 
 /**
  * The class that resolves the BreadcrumbConfig object for an Item

src/app/statistics-page/statistics-page-routing.module.ts

@@ -10,6 +10,7 @@ import { ThemedCollectionStatisticsPageComponent } from './collection-statistics
 import { ThemedCommunityStatisticsPageComponent } from './community-statistics-page/themed-community-statistics-page.component';
 import { ThemedItemStatisticsPageComponent } from './item-statistics-page/themed-item-statistics-page.component';
 import { ThemedSiteStatisticsPageComponent } from './site-statistics-page/themed-site-statistics-page.component';
+import { ItemResolver } from '../+item-page/item.resolver';
 
 @NgModule({
   imports: [
@@ -34,7 +35,7 @@ import { ThemedSiteStatisticsPageComponent } from './site-statistics-page/themed
         {
           path: `items/:id`,
           resolve: {
-            scope: ItemPageResolver,
+            scope: ItemResolver,
             breadcrumb: I18nBreadcrumbResolver
           },
           data: {
@@ -75,7 +76,7 @@ import { ThemedSiteStatisticsPageComponent } from './site-statistics-page/themed
     I18nBreadcrumbsService,
     CollectionPageResolver,
     CommunityPageResolver,
-    ItemPageResolver
+    ItemResolver
   ]
 })
 export class StatisticsPageRoutingModule {