Intermediate commit

resources/i18n/en.json5

@@ -1675,9 +1675,21 @@
 
   "resource-policies.add.for.item": "Add a new Item policy",
 
-  "resource-policies.create.modal.head": "Create new resource policy",
+  "resource-policies.create.page.heading": "Create new resource policy for ",
 
-  "resource-policies.edit.modal.head": "Edit resource policy",
+  "resource-policies.create.page.failure.content": "An error occurred while creating the resource policy.",
+
+  "resource-policies.create.page.success.content": "Operation successful",
+
+  "resource-policies.create.page.title": "Create new resource policy",
+
+  "resource-policies.edit.page.heading": "Edit resource policy ",
+
+  "resource-policies.edit.page.failure.content": "An error occurred while editing the resource policy.",
+
+  "resource-policies.edit.page.success.content": "Operation successful",
+
+  "resource-policies.edit.page.title": "Edit resource policy",
 
   "resource-policies.form.action-type.label": "Select the action type",
 
@@ -1721,9 +1733,11 @@
 
   "resource-policies.table.headers.group": "Group",
 
+  "resource-policies.table.headers.id": "ID",
+
   "resource-policies.table.headers.name": "Name",
 
-  "resource-policies.table.headers.id": "ID",
+  "resource-policies.table.headers.policyType": "type",
 
   "resource-policies.table.headers.title.for.bitstream": "Policies for Bitstream",
 

src/app/+item-page/edit-item-page/edit-item-page.module.ts

@@ -24,6 +24,8 @@ import { ItemMoveComponent } from './item-move/item-move.component';
 import { VirtualMetadataComponent } from './virtual-metadata/virtual-metadata.component';
 import { ItemVersionHistoryComponent } from './item-version-history/item-version-history.component';
 import { ItemAuthorizationsComponent } from './item-authorizations/item-authorizations.component';
+import { ResourcePolicyEditComponent } from '../../shared/resource-policies/edit/resource-policy-edit.component';
+import { ResourcePolicyCreateComponent } from '../../shared/resource-policies/create/resource-policy-create.component';
 
 /**
  * Module that contains all components related to the Edit Item page administrator functionality
@@ -56,7 +58,9 @@ import { ItemAuthorizationsComponent } from './item-authorizations/item-authoriz
     ItemCollectionMapperComponent,
     ItemMoveComponent,
     VirtualMetadataComponent,
-    ItemAuthorizationsComponent
+    ItemAuthorizationsComponent,
+    ResourcePolicyEditComponent,
+    ResourcePolicyCreateComponent,
   ]
 })
 export class EditItemPageModule {

src/app/+item-page/edit-item-page/edit-item-page.routing.module.ts

@@ -15,8 +15,10 @@ import { ItemRelationshipsComponent } from './item-relationships/item-relationsh
 import { I18nBreadcrumbResolver } from '../../core/breadcrumbs/i18n-breadcrumb.resolver';
 import { ItemVersionHistoryComponent } from './item-version-history/item-version-history.component';
 import { ItemAuthorizationsComponent } from './item-authorizations/item-authorizations.component';
-import { ResourcePolicyEditComponent } from '../../shared/resource-policies/edit/resource-policy-edit.component';
+import { ResourcePolicyTargetResolver } from '../../shared/resource-policies/resolvers/resource-policy-target.resolver';
+import { ResourcePolicyResolver } from '../../shared/resource-policies/resolvers/resource-policy.resolver';
 import { ResourcePolicyCreateComponent } from '../../shared/resource-policies/create/resource-policy-create.component';
+import { ResourcePolicyEditComponent } from '../../shared/resource-policies/edit/resource-policy-edit.component';
 
 export const ITEM_EDIT_WITHDRAW_PATH = 'withdraw';
 export const ITEM_EDIT_REINSTATE_PATH = 'reinstate';
@@ -118,19 +120,27 @@ export const ITEM_EDIT_AUTHORIZATIONS_PATH = 'authorizations';
           },
           {
             path: ITEM_EDIT_AUTHORIZATIONS_PATH,
-            data: { title: 'item.edit.authorizations.title' },
             children: [
               {
-                path: ':dso/create',
+                path: 'create',
+                resolve: {
+                  resourcePolicyTarget: ResourcePolicyTargetResolver
+                },
                 component: ResourcePolicyCreateComponent,
+                data: { title: 'resource-policies.create.page.title' }
               },
               {
-                path: ':dso/:policy/edit',
+                path: 'edit',
+                resolve: {
+                  resourcePolicy: ResourcePolicyResolver
+                },
                 component: ResourcePolicyEditComponent,
+                data: { title: 'resource-policies.edit.page.title' }
               },
               {
                 path: '',
-                component: ItemAuthorizationsComponent
+                component: ItemAuthorizationsComponent,
+                data: { title: 'item.edit.authorizations.title' }
               }
             ]
           }
@@ -138,7 +148,10 @@ export const ITEM_EDIT_AUTHORIZATIONS_PATH = 'authorizations';
       }
     ])
   ],
-  providers: []
+  providers: [
+    ResourcePolicyResolver,
+    ResourcePolicyTargetResolver
+  ]
 })
 export class EditItemPageRoutingModule {
 

src/app/+item-page/edit-item-page/item-authorizations/item-authorizations.component.html

@@ -1,11 +1,11 @@
 <div class="container">
   <ds-alert [type]="'alert-info'" [content]="'item.edit.authorizations.heading'"></ds-alert>
-  <ds-resource-policies [resourceKey]="'item'" [resourceUUID]="(getItemUUID() | async)"></ds-resource-policies>
+  <ds-resource-policies [resourceType]="'item'" [resourceUUID]="(getItemUUID() | async)"></ds-resource-policies>
   <ng-container *ngFor="let bundle of (getItemBundles() | async)?.page; trackById">
-    <ds-resource-policies [resourceKey]="'bundle'"
+    <ds-resource-policies [resourceType]="'bundle'"
                           [resourceUUID]="bundle.id"></ds-resource-policies>
     <ng-container *ngFor="let bitstream of (bundleBitstreamsMap.get(bundle.id) | async)?.page; trackById">
-      <ds-resource-policies [resourceKey]="'bitstream'"
+      <ds-resource-policies [resourceType]="'bitstream'"
                             [resourceUUID]="bitstream.id"></ds-resource-policies>
     </ng-container>
   </ng-container>

src/app/core/resource-policy/resource-policy.service.spec.ts

@@ -170,18 +170,6 @@ describe('ResourcePolicyService', () => {
   });
 
   describe('delete', () => {
-    beforeEach(async(() => {
-      scheduler = getTestScheduler();
-      responseCacheEntry.completed = true;
-      requestService = jasmine.createSpyObj('requestService', {
-        configure: {},
-        getByHref: observableOf(responseCacheEntry),
-        getByUUID: hot('a', { a: responseCacheEntry }),
-        generateRequestId: 'request-id',
-        removeByHrefSubstring: {}
-      });
-    }));
-
     it('should proxy the call to dataservice.create', () => {
       scheduler.schedule(() => service.delete(resourcePolicyId));
       scheduler.flush();
@@ -190,6 +178,15 @@ describe('ResourcePolicyService', () => {
     });
   });
 
+  describe('update', () => {
+    it('should proxy the call to dataservice.update', () => {
+      scheduler.schedule(() => service.update(resourcePolicy));
+      scheduler.flush();
+
+      expect((service as any).dataService.update).toHaveBeenCalledWith(resourcePolicy);
+    });
+  });
+
   describe('findById', () => {
     it('should proxy the call to dataservice.findById', () => {
       scheduler.schedule(() => service.findById(resourcePolicyId));

src/app/core/resource-policy/resource-policy.service.ts

@@ -103,6 +103,15 @@ export class ResourcePolicyService {
     return this.dataService.delete(resourcePolicyID);
   }
 
+  /**
+   * Add a new patch to the object cache
+   * The patch is derived from the differences between the given object and its version in the object cache
+   * @param {ResourcePolicy} object The given object
+   */
+  update(object: ResourcePolicy): Observable<RemoteData<ResourcePolicy>> {
+    return this.dataService.update(object);
+  }
+
   /**
    * Returns an observable of {@link RemoteData} of a {@link ResourcePolicy}, based on an href, with a list of {@link FollowLinkConfig},
    * to automatically resolve {@link HALLink}s of the {@link ResourcePolicy}

src/app/core/shared/operators.ts

@@ -67,6 +67,10 @@ export const getSucceededRemoteData = () =>
   <T>(source: Observable<RemoteData<T>>): Observable<RemoteData<T>> =>
     source.pipe(find((rd: RemoteData<T>) => rd.hasSucceeded));
 
+export const getSucceededRemoteWithNotEmptyData = () =>
+  <T>(source: Observable<RemoteData<T>>): Observable<RemoteData<T>> =>
+    source.pipe(find((rd: RemoteData<T>) => rd.hasSucceeded && isNotEmpty(rd.payload)));
+
 /**
  * Get the first successful remotely retrieved object
  *
@@ -84,6 +88,23 @@ export const getFirstSucceededRemoteDataPayload = () =>
       getRemoteDataPayload()
     );
 
+/**
+ * Get the first successful remotely retrieved object with not empty payload
+ *
+ * You usually don't want to use this, it is a code smell.
+ * Work with the RemoteData object instead, that way you can
+ * handle loading and errors correctly.
+ *
+ * These operators were created as a first step in refactoring
+ * out all the instances where this is used incorrectly.
+ */
+export const getFirstSucceededRemoteDataWithNotEmptyPayload = () =>
+  <T>(source: Observable<RemoteData<T>>): Observable<T> =>
+    source.pipe(
+      getSucceededRemoteWithNotEmptyData(),
+      getRemoteDataPayload()
+    );
+
 /**
  * Get the all successful remotely retrieved objects
  *

src/app/shared/resource-policies/create/resource-policy-create.component.html

@@ -1,6 +1,6 @@
 <div class="container">
-  <h4 class="mb-3">{{'resource-policies.create.modal.head' | translate}}</h4>
+  <h4 class="mb-3">{{'resource-policies.edit.page.heading' | translate}} {{targetResourceName}}</h4>
 
-  <ds-resource-policy-form (reset)="redirectToPreviousPage()"
+  <ds-resource-policy-form (reset)="redirectToAuthorizationsPage()"
                            (submit)="createResourcePolicy($event)"></ds-resource-policy-form>
 </div>

src/app/shared/resource-policies/create/resource-policy-create.component.ts

@@ -1,32 +1,69 @@
-import { Component } from '@angular/core';
+import { Component, OnInit } from '@angular/core';
-import { Router } from '@angular/router';
+import { ActivatedRoute, Router } from '@angular/router';
 
-import { take } from 'rxjs/operators';
+import { first, map, take } from 'rxjs/operators';
 
-import { ResourcePolicyEvent } from '../form/resource-policy-form';
+import { DSpaceObject } from '../../../core/shared/dspace-object.model';
-import { RouteService } from '../../../core/services/route.service';
 import { ResourcePolicyService } from '../../../core/resource-policy/resource-policy.service';
+import { NotificationsService } from '../../notifications/notifications.service';
+import { RemoteData } from '../../../core/data/remote-data';
+import { ResourcePolicy } from '../../../core/resource-policy/models/resource-policy.model';
+import { ResourcePolicyEvent } from '../form/resource-policy-form';
+import { ITEM_EDIT_AUTHORIZATIONS_PATH } from '../../../+item-page/edit-item-page/edit-item-page.routing.module';
+import { DSONameService } from '../../../core/breadcrumbs/dso-name.service';
 
 @Component({
   selector: 'ds-resource-policy-create',
   templateUrl: './resource-policy-create.component.html'
 })
-export class ResourcePolicyCreateComponent {
+export class ResourcePolicyCreateComponent implements OnInit {
+
+  /**
+   * The uuid of the resource target of the policy
+   */
+  private targetResourceUUID: string;
+
+  public targetResourceName: string;
 
   constructor(
-    protected resourcePolicy: ResourcePolicyService,
+    private dsoNameService: DSONameService,
-    protected router: Router,
+    private notificationsService: NotificationsService,
-    protected routeService: RouteService) {
+    private resourcePolicyService: ResourcePolicyService,
+    private route: ActivatedRoute,
+    private router: Router) {
+  }
+
+  ngOnInit(): void {
+    this.route.data.pipe(
+      map((data) => data),
+      take(1)
+    ).subscribe((data: any) => {
+      this.targetResourceUUID = (data.resourcePolicyTarget as RemoteData<DSpaceObject>).payload.id;
+      this.targetResourceName = this.dsoNameService.getName((data.resourcePolicyTarget as RemoteData<DSpaceObject>).payload);
+    });
+  }
+
+  redirectToAuthorizationsPage() {
+    this.router.navigate([`../../${ITEM_EDIT_AUTHORIZATIONS_PATH}`], { relativeTo: this.route });
   }
 
   createResourcePolicy(event: ResourcePolicyEvent) {
-
+    let response$;
+    if (event.target.type === 'eperson') {
+      response$ = this.resourcePolicyService.create(event.object, this.targetResourceUUID, event.target.uuid);
+    } else {
+      response$ = this.resourcePolicyService.create(event.object, this.targetResourceUUID, null, event.target.uuid);
+    }
+    response$.pipe(
+      first((response: RemoteData<ResourcePolicy>) => !response.isResponsePending)
+    ).subscribe((responseRD: RemoteData<ResourcePolicy>) => {
+      if (responseRD.hasSucceeded) {
+        this.notificationsService.success(null, 'resource-policies.create.page.success.content');
+        this.redirectToAuthorizationsPage();
+      } else {
+        this.notificationsService.error(null, 'resource-policies.create.page.failure.content');
       }
-
-  redirectToPreviousPage() {
-    this.routeService.getPreviousUrl().pipe(take(1))
-      .subscribe((url) => {
-        this.router.navigateByUrl(url);
     })
   }
+
 }

src/app/shared/resource-policies/edit/resource-policy-edit.component.html

@@ -1,5 +1,7 @@
 <div class="container">
-  <h4 class="mb-3">{{'resource-policies.edit.modal.head' | translate}}</h4>
+  <h4 class="mb-3">{{'resource-policies.edit.page.heading' | translate}} {{resourcePolicy.id}}</h4>
 
-  <ds-resource-policy-form></ds-resource-policy-form>
+  <ds-resource-policy-form [resourcePolicy]="resourcePolicy"
+                           (reset)="redirectToAuthorizationsPage()"
+                           (submit)="updateResourcePolicy($event)"></ds-resource-policy-form>
 </div>

src/app/shared/resource-policies/edit/resource-policy-edit.component.ts

@@ -1,9 +1,60 @@
-import { Component } from '@angular/core';
+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Router } from '@angular/router';
+
+import { first, map, take } from 'rxjs/operators';
+
+import { ResourcePolicyService } from '../../../core/resource-policy/resource-policy.service';
+import { NotificationsService } from '../../notifications/notifications.service';
+import { RemoteData } from '../../../core/data/remote-data';
+import { ResourcePolicy } from '../../../core/resource-policy/models/resource-policy.model';
+import { ResourcePolicyEvent } from '../form/resource-policy-form';
+import { ITEM_EDIT_AUTHORIZATIONS_PATH } from '../../../+item-page/edit-item-page/edit-item-page.routing.module';
 
 @Component({
   selector: 'ds-resource-policy-edit',
   templateUrl: './resource-policy-edit.component.html'
 })
-export class ResourcePolicyEditComponent {
+export class ResourcePolicyEditComponent implements OnInit {
 
+  /**
+   * The resource policy object to edit
+   */
+  public resourcePolicy: ResourcePolicy;
+
+  constructor(
+    private notificationsService: NotificationsService,
+    private resourcePolicyService: ResourcePolicyService,
+    private route: ActivatedRoute,
+    private router: Router) {
+  }
+
+  ngOnInit(): void {
+    this.route.data.pipe(
+      map((data) => data),
+      take(1)
+    ).subscribe((data: any) => {
+      this.resourcePolicy = (data.resourcePolicy as RemoteData<ResourcePolicy>).payload;
+      console.log(data)
+    });
+  }
+
+  redirectToAuthorizationsPage() {
+    this.router.navigate([`../../${ITEM_EDIT_AUTHORIZATIONS_PATH}`], { relativeTo: this.route });
+  }
+
+  updateResourcePolicy(event: ResourcePolicyEvent) {
+    const updatedObject = Object.assign({}, event.object, {
+      _links: this.resourcePolicy._links
+    });
+    this.resourcePolicyService.update(updatedObject).pipe(
+      first((response: RemoteData<ResourcePolicy>) => !response.isResponsePending)
+    ).subscribe((responseRD: RemoteData<ResourcePolicy>) => {
+      if (responseRD.hasSucceeded) {
+        this.notificationsService.success(null, 'resource-policies.edit.page.success.content');
+        this.redirectToAuthorizationsPage();
+      } else {
+        this.notificationsService.error(null, 'resource-policies.edit.page.failure.content');
+      }
+    })
+  }
 }

src/app/shared/resource-policies/form/eperson-group-list/eperson-group-list.component.ts

@@ -1,4 +1,4 @@
-import { Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
+import { Component, EventEmitter, Injector, Input, OnDestroy, OnInit, Output } from '@angular/core';
 
 import { BehaviorSubject, Observable, Subscription } from 'rxjs';
 import { map, take } from 'rxjs/operators';
@@ -7,13 +7,15 @@ import { uniqueId } from 'lodash'
 import { RemoteData } from '../../../../core/data/remote-data';
 import { PaginatedList } from '../../../../core/data/paginated-list';
 import { DSpaceObject } from '../../../../core/shared/dspace-object.model';
-import { EPersonDataService } from '../../../../core/eperson/eperson-data.service';
-import { GroupDataService } from '../../../../core/eperson/group-data.service';
 import { PaginationComponentOptions } from '../../../pagination/pagination-component-options.model';
 import { DataService } from '../../../../core/data/data.service';
 import { hasValue, isNotEmpty } from '../../../empty.util';
 import { FindListOptions } from '../../../../core/data/request.models';
 import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
+import { getDataServiceFor } from '../../../../core/cache/builders/build-decorators';
+import { EPERSON } from '../../../../core/eperson/models/eperson.resource-type';
+import { GROUP } from '../../../../core/eperson/models/group.resource-type';
+import { ResourceType } from '../../../../core/shared/resource-type';
 
 @Component({
   selector: 'ds-eperson-group-list',
@@ -69,9 +71,13 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
    */
   private subs: Subscription[] = [];
 
-  constructor(public dsoNameService: DSONameService,
+  constructor(public dsoNameService: DSONameService, private parentInjector: Injector) {
-              private epersonService: EPersonDataService,
+    const resourceType: ResourceType = (this.isListOfEPerson) ? EPERSON : GROUP;
-              private groupsService: GroupDataService) {
+    const provider = getDataServiceFor(resourceType);
+    this.dataService = Injector.create({
+      providers: [],
+      parent: this.parentInjector
+    }).get(provider);
   }
 
   /**
@@ -80,7 +86,6 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
   ngOnInit(): void {
     this.paginationOptions.id = uniqueId('eperson-group-list-pagination');
     this.paginationOptions.pageSize = 5;
-    this.dataService = (this.isListOfEPerson) ? this.epersonService : this.groupsService;
 
     if (this.initSelected) {
       this.entrySelectedId.next(this.initSelected);

src/app/shared/resource-policies/form/resource-policy-form.html

@@ -7,7 +7,7 @@
   <div class="container-fluid">
     <label for="ResourcePolicyObject">{{'resource-policies.form.eperson-group-list.label' | translate}}</label>
     <input id="ResourcePolicyObject" class="form-control mb-3" type="text" readonly [value]="getResourcePolicyTargetName()">
-    <ngb-tabset type="pills">
+    <ngb-tabset *ngIf="canSetGrant()" type="pills">
       <ngb-tab [title]="'resource-policies.form.eperson-group-list.tab.eperson' | translate">
         <ng-template ngbTabContent>
           <ds-eperson-group-list (select)="updateObjectSelected($event, true)"></ds-eperson-group-list>

src/app/shared/resource-policies/form/resource-policy-form.ts

@@ -1,6 +1,6 @@
-import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
+import { Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
 
-import { Observable } from 'rxjs';
+import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
 import { map } from 'rxjs/operators';
 import { DynamicFormControlModel, DynamicFormGroupModel, DynamicSelectModel } from '@ng-dynamic-forms/core';
 
@@ -22,8 +22,11 @@ import { DsDynamicTextAreaModel } from '../../form/builder/ds-dynamic-form-ui/mo
 import { DynamicDsDatePickerModel } from '../../form/builder/ds-dynamic-form-ui/models/date-picker/date-picker.model';
 import { DSpaceObject } from '../../../core/shared/dspace-object.model';
 import { DSONameService } from '../../../core/breadcrumbs/dso-name.service';
-import { hasValue, isNotEmpty } from '../../empty.util';
+import { hasValue, isEmpty, isNotEmpty } from '../../empty.util';
 import { FormService } from '../../form/form.service';
+import { RESOURCE_POLICY } from '../../../core/resource-policy/models/resource-policy.resource-type';
+import { RemoteData } from '../../../core/data/remote-data';
+import { Subscription } from 'rxjs/internal/Subscription';
 
 export interface ResourcePolicyEvent {
   object: ResourcePolicy,
@@ -40,10 +43,10 @@ export interface ResourcePolicyEvent {
 /**
  * Component that show form for adding/editing a resource policy
  */
-export class ResourcePolicyFormComponent implements OnInit {
+export class ResourcePolicyFormComponent implements OnInit, OnDestroy {
 
   /**
-   * The resource policy to edit
+   * If given contains the resource policy to edit
    * @type {ResourcePolicy}
    */
   @Input() resourcePolicy: ResourcePolicy;
@@ -76,13 +79,19 @@ export class ResourcePolicyFormComponent implements OnInit {
    * The eperson or group that will be grant of the permission
    * @type {DSpaceObject}
    */
-  public resourcePolicyTarget: DSpaceObject;
+  public resourcePolicyGrant: DSpaceObject;
 
   /**
    * The type of the object that will be grant of the permission. It could be 'eperson' or 'group'
    * @type {string}
    */
-  public resourcePolicyTargetType: string;
+  public resourcePolicyGrantType: string;
+
+  /**
+   * Array to track all subscriptions and unsubscribe them onDestroy
+   * @type {Array}
+   */
+  private subs: Subscription[] = [];
 
   /**
    * Initialize instance variables
@@ -102,6 +111,14 @@ export class ResourcePolicyFormComponent implements OnInit {
   ngOnInit(): void {
     this.formId = this.formService.getUniqueId('resource-policy-form');
     this.formModel = this.buildResourcePolicyForm();
+
+    if (!this.canSetGrant()) {
+      this.subs.push(observableCombineLatest([this.resourcePolicy.eperson, this.resourcePolicy.group])
+        .subscribe(([epersonRD, groupRD]: [RemoteData<DSpaceObject>, RemoteData<DSpaceObject>]) => {
+          this.resourcePolicyGrant = epersonRD.payload || groupRD.payload;
+        })
+      )
+    }
   }
 
   /**
@@ -111,7 +128,7 @@ export class ResourcePolicyFormComponent implements OnInit {
    */
   isFormValid(): Observable<boolean> {
     return this.formService.isValid(this.formId).pipe(
-      map((isValid: boolean) => isValid && isNotEmpty(this.resourcePolicyTarget))
+      map((isValid: boolean) => isValid && isNotEmpty(this.resourcePolicyGrant))
     )
   }
 
@@ -171,21 +188,31 @@ export class ResourcePolicyFormComponent implements OnInit {
     return formModel;
   }
 
+  /**
+   * Return a boolean representing If is possible to set policy grant
+   *
+   * @return true if is possible, false otherwise
+   */
+  canSetGrant(): boolean {
+    return isEmpty(this.resourcePolicy);
+  }
+
   /**
    * Return the name of the eperson or group that will be grant of the permission
    *
    * @return the object name
    */
   getResourcePolicyTargetName(): string {
-    return isNotEmpty(this.resourcePolicyTarget) ? this.dsoNameService.getName(this.resourcePolicyTarget) : '';
+    console.log(this.resourcePolicy);
+    return isNotEmpty(this.resourcePolicyGrant) ? this.dsoNameService.getName(this.resourcePolicyGrant) : '';
   }
 
   /**
    * Update reference to the eperson or group that will be grant of the permission
    */
   updateObjectSelected(object: DSpaceObject, isEPerson: boolean): void {
-    this.resourcePolicyTarget = object;
+    this.resourcePolicyGrant = object;
-    this.resourcePolicyTargetType = isEPerson ? 'eperson' : 'group';
+    this.resourcePolicyGrantType = isEPerson ? 'eperson' : 'group';
   }
 
   /**
@@ -204,17 +231,40 @@ export class ResourcePolicyFormComponent implements OnInit {
     this.formService.getFormData(this.formId)
       .subscribe((data) => {
         const eventPayload: ResourcePolicyEvent = Object.create({});
-        const resourcePolicy = new ResourcePolicy();
+        eventPayload.object = this.createResourcePolicyByFormData(data);
-        resourcePolicy.name = data.name;
+        console.log('resourcePolicyTarget', this.resourcePolicyGrant.type.value);
-        resourcePolicy.description = data.description;
+        eventPayload.target = {
-        resourcePolicy.policyType = data.policyType;
+          type: this.resourcePolicyGrantType,
-        resourcePolicy.action = data.action;
+          uuid: this.resourcePolicyGrant.id
-        resourcePolicy.startDate = (data.date) ? data.date.start : undefined;
+        };
-        resourcePolicy.endDate = (data.date) ? data.date.end : undefined;
-        eventPayload.object = resourcePolicy;
-        eventPayload.target.type = this.resourcePolicyTargetType;
-        eventPayload.target.uuid = this.resourcePolicyTarget.id;
         this.submit.emit(eventPayload);
       })
   }
+
+  /**
+   * Create e new ResourcePolicy by form data
+   *
+   * @return the new ResourcePolicy object
+   */
+  createResourcePolicyByFormData(data): ResourcePolicy {
+    const resourcePolicy = new ResourcePolicy();
+    resourcePolicy.name = (data.name) ? data.name[0].value : null;
+    resourcePolicy.description = (data.description) ? data.description[0].value : null;
+    resourcePolicy.policyType = (data.policyType) ? data.policyType[0].value : null;
+    resourcePolicy.action = (data.action) ? data.action[0].value : null;
+    resourcePolicy.startDate = (data.date && data.date.start) ? data.date.start[0].value : null;
+    resourcePolicy.endDate = (data.date && data.date.end) ? data.date.end[0].value : null;
+    resourcePolicy.type = RESOURCE_POLICY;
+
+    return resourcePolicy;
+  }
+
+  /**
+   * Unsubscribe from all subscriptions
+   */
+  ngOnDestroy(): void {
+    this.subs
+      .filter((subscription) => hasValue(subscription))
+      .forEach((subscription) => subscription.unsubscribe())
+  }
 }

src/app/shared/resource-policies/resolvers/resource-policy-target.resolver.ts

@@ -0,0 +1,53 @@
+import { Injectable, Injector } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot } from '@angular/router';
+
+import { Observable } from 'rxjs';
+import { find } from 'rxjs/operators';
+
+import { getDataServiceFor } from '../../../core/cache/builders/build-decorators';
+import { ResourceType } from '../../../core/shared/resource-type';
+import { DataService } from '../../../core/data/data.service';
+import { DSpaceObject } from '../../../core/shared/dspace-object.model';
+import { hasValue, isEmpty } from '../../empty.util';
+import { RemoteData } from '../../../core/data/remote-data';
+
+/**
+ * This class represents a resolver that requests a specific item before the route is activated
+ */
+@Injectable()
+export class ResourcePolicyTargetResolver implements Resolve<RemoteData<DSpaceObject>> {
+
+  /**
+   * The data service used to make request.
+   */
+  private dataService: DataService<DSpaceObject>;
+
+  constructor(private parentInjector: Injector, private 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<DSpaceObject>> {
+    const targetType = route.queryParamMap.get('targetType');
+    const policyTargetId = route.queryParamMap.get('policyTargetId');
+
+    if (isEmpty(targetType) || isEmpty(policyTargetId)) {
+      this.router.navigateByUrl('/404', { skipLocationChange: true });
+    }
+
+    const provider = getDataServiceFor(new ResourceType(targetType));
+    this.dataService = Injector.create({
+      providers: [],
+      parent: this.parentInjector
+    }).get(provider);
+
+    return this.dataService.findById(policyTargetId).pipe(
+      find((RD) => hasValue(RD.error) || RD.hasSucceeded),
+    );
+  }
+}

src/app/shared/resource-policies/resolvers/resource-policy.resolver.ts

@@ -0,0 +1,40 @@
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot } from '@angular/router';
+
+import { Observable } from 'rxjs';
+import { find } from 'rxjs/operators';
+
+import { hasValue, isEmpty } from '../../empty.util';
+import { RemoteData } from '../../../core/data/remote-data';
+import { ResourcePolicy } from '../../../core/resource-policy/models/resource-policy.model';
+import { ResourcePolicyService } from '../../../core/resource-policy/resource-policy.service';
+import { followLink } from '../../utils/follow-link-config.model';
+
+/**
+ * This class represents a resolver that requests a specific item before the route is activated
+ */
+@Injectable()
+export class ResourcePolicyResolver implements Resolve<RemoteData<ResourcePolicy>> {
+
+  constructor(private resourcePolicyService: ResourcePolicyService, private 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<ResourcePolicy>> {
+    const policyId = route.queryParamMap.get('policyId');
+
+    if (isEmpty(policyId)) {
+      this.router.navigateByUrl('/404', { skipLocationChange: true });
+    }
+
+    return this.resourcePolicyService.findById(policyId, followLink('eperson'), followLink('group')).pipe(
+      find((RD) => hasValue(RD.error) || RD.hasSucceeded),
+    );
+  }
+}

src/app/shared/resource-policies/resource-policies.component.html

@@ -4,9 +4,9 @@
       <tr>
         <th colspan="7">
           <p class="d-flex justify-content-between align-items-center m-0">
-            {{ 'resource-policies.table.headers.title.for.' + resourceKey | translate }} {{resourceUUID}}
+            {{ 'resource-policies.table.headers.title.for.' + resourceType | translate }} {{resourceUUID}}
             <button class="btn btn-outline-primary float-right" (click)="createResourcePolicy()">
-              {{'resource-policies.add.for.' + resourceKey | translate}}
+              {{'resource-policies.add.for.' + resourceType | translate}}
             </button>
           </p>
         </th>
@@ -14,6 +14,7 @@
       <tr class="text-center">
         <th>{{'resource-policies.table.headers.id' | translate}}</th>
         <th>{{'resource-policies.table.headers.name' | translate}}</th>
+        <th>{{'resource-policies.table.headers.policyType' | translate}}</th>
         <th>{{'resource-policies.table.headers.action' | translate}}</th>
         <th>{{'resource-policies.table.headers.eperson' | translate}}</th>
         <th>{{'resource-policies.table.headers.group' | translate}}</th>
@@ -30,6 +31,7 @@
           </button>
         </th>
         <td>{{policy.name}}</td>
+        <td>{{policy.policyType}}</td>
         <td>{{policy.action}}</td>
         <td *ngIf="(hasEPerson(policy) | async)">
           {{getEPersonName(policy) | async}}

src/app/shared/resource-policies/resource-policies.component.ts

@@ -1,12 +1,16 @@
 import { ChangeDetectorRef, Component, Input, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 
-import { Observable, Subscription } from 'rxjs';
+import { BehaviorSubject, Observable, Subscription } from 'rxjs';
-import { map } from 'rxjs/operators';
+import { filter, map, startWith, take } from 'rxjs/operators';
 
 import { ResourcePolicyService } from '../../core/resource-policy/resource-policy.service';
 import { PaginatedList } from '../../core/data/paginated-list';
-import { getFirstSucceededRemoteDataPayload, getSucceededRemoteData } from '../../core/shared/operators';
+import {
+  getFirstSucceededRemoteDataPayload,
+  getFirstSucceededRemoteDataWithNotEmptyPayload,
+  getSucceededRemoteData
+} from '../../core/shared/operators';
 import { RemoteData } from '../../core/data/remote-data';
 import { ResourcePolicy } from '../../core/resource-policy/models/resource-policy.model';
 import { DSONameService } from '../../core/breadcrumbs/dso-name.service';
@@ -15,6 +19,8 @@ import { GroupDataService } from '../../core/eperson/group-data.service';
 import { hasValue, isNotEmpty } from '../empty.util';
 import { EPerson } from '../../core/eperson/models/eperson.model';
 import { EPersonDataService } from '../../core/eperson/eperson-data.service';
+import { followLink } from '../utils/follow-link-config.model';
+import { RequestService } from '../../core/data/request.service';
 
 @Component({
   selector: 'ds-resource-policies',
@@ -36,13 +42,20 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * The resource type (e.g. 'item', 'bundle' etc) used as key to build automatically translation label
    * @type {string}
    */
-  @Input() public resourceKey: string;
+  @Input() public resourceType: string;
+
+  /**
+   * A boolean representing if component is active
+   * @type {boolean}
+   */
+  private isActive: boolean;
 
   /**
    * The list of policies for given resource
    * @type {Observable<RemoteData<PaginatedList<ResourcePolicy>>>}
    */
-  private resourcePolicies$: Observable<RemoteData<PaginatedList<ResourcePolicy>>>;
+  private resourcePolicies$: BehaviorSubject<RemoteData<PaginatedList<ResourcePolicy>>> =
+    new BehaviorSubject<RemoteData<PaginatedList<ResourcePolicy>>>({} as any);
 
   /**
    * Array to track all subscriptions and unsubscribe them onDestroy
@@ -57,6 +70,7 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @param {DSONameService} dsoNameService
    * @param {EPersonDataService} ePersonService
    * @param {GroupDataService} groupService
+   * @param {RequestService} requestService
    * @param {ResourcePolicyService} resourcePolicyService
    * @param {ActivatedRoute} route
    * @param {Router} router
@@ -66,6 +80,7 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
     private dsoNameService: DSONameService,
     private ePersonService: EPersonDataService,
     private groupService: GroupDataService,
+    private requestService: RequestService,
     private resourcePolicyService: ResourcePolicyService,
     private route: ActivatedRoute,
     private router: Router
@@ -76,9 +91,16 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * Initialize the component, setting up the resource's policies
    */
   ngOnInit(): void {
-    this.resourcePolicies$ = this.resourcePolicyService.searchByResource(this.resourceUUID).pipe(
+    this.isActive = true;
-      getSucceededRemoteData()
+    this.requestService.removeByHrefSubstring(this.resourceUUID);
-    );
+    this.resourcePolicyService.searchByResource(this.resourceUUID, null,
+      followLink('eperson'), followLink('group')).pipe(
+      filter(() => this.isActive),
+      getSucceededRemoteData(),
+      take(1)
+    ).subscribe((result) => {
+      this.resourcePolicies$.next(result);
+    });
 
   }
 
@@ -86,7 +108,13 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * Redirect to resource policy creation page
    */
   createResourcePolicy(): void {
-    this.router.navigate([`../${this.resourceUUID}/create`], { relativeTo: this.route })
+    this.router.navigate([`../create`], {
+      relativeTo: this.route,
+      queryParams: {
+        policyTargetId: this.resourceUUID,
+        targetType: this.resourceType
+      }
+    })
   }
 
   /**
@@ -95,7 +123,12 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @param policy The resource policy
    */
   editResourcePolicy(policy: ResourcePolicy): void {
-    this.router.navigate([`../${this.resourceUUID}/${policy.id}/edit`], { relativeTo: this.route })
+    this.router.navigate([`../edit`], {
+      relativeTo: this.route,
+      queryParams: {
+        policyId: policy.id
+      }
+    })
   }
 
   /**
@@ -104,9 +137,11 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @param policy The resource policy
    */
   getEPersonName(policy: ResourcePolicy): Observable<string> {
-    return this.ePersonService.findByHref(policy._links.eperson.href).pipe(
+    return policy.eperson.pipe(
-      getFirstSucceededRemoteDataPayload(),
+      filter(() => this.isActive),
-      map((eperson: EPerson) => this.dsoNameService.getName(eperson))
+      getFirstSucceededRemoteDataWithNotEmptyPayload(),
+      map((eperson: EPerson) => this.dsoNameService.getName(eperson)),
+      startWith('')
     )
   }
 
@@ -116,9 +151,11 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @param policy The resource policy
    */
   getGroupName(policy: ResourcePolicy): Observable<string> {
-    return this.groupService.findByHref(policy._links.group.href).pipe(
+    return policy.group.pipe(
-      getFirstSucceededRemoteDataPayload(),
+      filter(() => this.isActive),
-      map((group: Group) => this.dsoNameService.getName(group))
+      getFirstSucceededRemoteDataWithNotEmptyPayload(),
+      map((group: Group) => this.dsoNameService.getName(group)),
+      startWith('')
     )
   }
 
@@ -128,7 +165,7 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @return an observable that emits all resource's policies
    */
   getResourcePolicies(): Observable<RemoteData<PaginatedList<ResourcePolicy>>> {
-    return this.resourcePolicies$;
+    return this.resourcePolicies$.asObservable();
   }
 
   /**
@@ -138,7 +175,8 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @return an observable that emits true when the policy is linked to a ePerson, false otherwise
    */
   hasEPerson(policy): Observable<boolean> {
-    return this.ePersonService.findByHref(policy._links.eperson.href).pipe(
+    return policy.eperson.pipe(
+      filter(() => this.isActive),
       getFirstSucceededRemoteDataPayload(),
       map((eperson: EPerson) => isNotEmpty(eperson))
     )
@@ -151,7 +189,8 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * @return an observable that emits true when the policy is linked to a group, false otherwise
    */
   hasGroup(policy): Observable<boolean> {
-    return this.groupService.findByHref(policy._links.group.href).pipe(
+    return policy.group.pipe(
+      filter(() => this.isActive),
       getFirstSucceededRemoteDataPayload(),
       map((group: Group) => isNotEmpty(group))
     )
@@ -164,7 +203,8 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    */
   redirectToGroupEditPage(policy: ResourcePolicy): void {
     this.subs.push(
-      this.groupService.findByHref(policy._links.group.href).pipe(
+      policy.group.pipe(
+        filter(() => this.isActive),
         getFirstSucceededRemoteDataPayload(),
         map((group: Group) => group.id)
       ).subscribe((groupUUID) => this.router.navigate(['groups', groupUUID, 'edit']))
@@ -175,6 +215,7 @@ export class ResourcePoliciesComponent implements OnInit, OnDestroy {
    * Unsubscribe from all subscriptions
    */
   ngOnDestroy(): void {
+    this.isActive = false;
     this.subs
       .filter((subscription) => hasValue(subscription))
       .forEach((subscription) => subscription.unsubscribe())

src/app/shared/shared.module.ts

@@ -189,9 +189,9 @@ import { ItemVersionsNoticeComponent } from './item/item-versions/notice/item-ve
 import { ResourcePoliciesComponent } from './resource-policies/resource-policies.component';
 import { NgForTrackByIdDirective } from './ng-for-track-by-id.directive';
 import { ResourcePolicyFormComponent } from './resource-policies/form/resource-policy-form';
-import { ResourcePolicyCreateComponent } from './resource-policies/create/resource-policy-create.component';
-import { ResourcePolicyEditComponent } from './resource-policies/edit/resource-policy-edit.component';
 import { EpersonGroupListComponent } from './resource-policies/form/eperson-group-list/eperson-group-list.component';
+import { ResourcePolicyTargetResolver } from './resource-policies/resolvers/resource-policy-target.resolver';
+import { ResourcePolicyResolver } from './resource-policies/resolvers/resource-policy.resolver';
 
 const MODULES = [
   // Do NOT include UniversalModule, HttpModule, or JsonpModule here
@@ -366,8 +366,6 @@ const COMPONENTS = [
   ItemVersionsNoticeComponent,
   ResourcePoliciesComponent,
   ResourcePolicyFormComponent,
-  ResourcePolicyCreateComponent,
-  ResourcePolicyEditComponent,
   EpersonGroupListComponent
 ];
 
@@ -435,9 +433,7 @@ const ENTRY_COMPONENTS = [
   LogInPasswordComponent,
   LogInShibbolethComponent,
   ItemVersionsComponent,
-  ItemVersionsNoticeComponent,
+  ItemVersionsNoticeComponent
-  ResourcePolicyCreateComponent,
-  ResourcePolicyEditComponent
 ];
 
 const SHARED_ITEM_PAGE_COMPONENTS = [
@@ -452,7 +448,9 @@ const PROVIDERS = [
   {
     provide: DYNAMIC_FORM_CONTROL_MAP_FN,
     useValue: dsDynamicFormControlMapFn
-  }
+  },
+  ResourcePolicyResolver,
+  ResourcePolicyTargetResolver
 ];
 
 const DIRECTIVES = [