Parent id fix in UI.

frontend/app/shared/components/assets/asset-folder.component.scss

@@ -14,7 +14,7 @@ img {
     & {
         border-bottom-width: 1px;
         border-width: 1px;
-        cursor: default;
+        cursor: pointer;
         width: $asset-width;
     }
 

frontend/app/shared/services/assets.service.spec.ts

@@ -242,6 +242,25 @@ describe('AssetsService', () => {
         expect(asset!).toEqual(createAsset(12));
     }));
 
+    it('should make post without parent id to create asset',
+        inject([AssetsService, HttpTestingController], (assetsService: AssetsService, httpMock: HttpTestingController) => {
+
+        let asset: AssetDto;
+
+        assetsService.postAssetFile('my-app', null!).subscribe(result => {
+            asset = <AssetDto>result;
+        });
+
+        const req = httpMock.expectOne('http://service/p/api/apps/my-app/assets');
+
+        expect(req.request.method).toEqual('POST');
+        expect(req.request.headers.get('If-Match')).toBeNull();
+
+        req.flush(assetResponse(12));
+
+        expect(asset!).toEqual(createAsset(12));
+    }));
+
     it('should return proper error when upload failed with 413',
         inject([AssetsService, HttpTestingController], (assetsService: AssetsService, httpMock: HttpTestingController) => {
 

frontend/app/shared/services/assets.service.ts

@@ -282,7 +282,11 @@ export class AssetsService {
     }
 
     public postAssetFile(appName: string, file: Blob, parentId?: string): Observable<number | AssetDto> {
-        const url = this.apiUrl.buildUrl(`api/apps/${appName}/assets?parentId=${parentId}`);
+        let url = this.apiUrl.buildUrl(`api/apps/${appName}/assets`);
+
+        if (parentId) {
+            url += `?parentId=${parentId}`;
+        }
 
         return HTTP.upload(this.http, 'POST', url, file).pipe(
             filter(event =>

frontend/app/shared/state/asset-uploader.state.ts

@@ -64,7 +64,7 @@ export class AssetUploaderState extends State<Snapshot> {
     }
 
     public uploadFile(file: File, target?: AssetsState): Observable<UploadResult> {
-        const parentId = target?.parentId || undefined;
+        const parentId = target?.parentId;
 
         const stream = this.assetsService.postAssetFile(this.appName, file, parentId);