64961: UUID filtering on compare + formToBitstream refactoring

src/app/+bitstream-page/edit-bitstream-page/edit-bitstream-page.component.ts

@@ -25,7 +25,8 @@ import { BitstreamFormat } from '../../core/shared/bitstream-format.model';
 import { BitstreamFormatSupportLevel } from '../../core/shared/bitstream-format-support-level';
 import { RestResponse } from '../../core/cache/response.models';
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
-import { MetadataValue } from '../../core/shared/metadata.models';
+import { MetadataMap, MetadataValue } from '../../core/shared/metadata.models';
+import { Metadata } from '../../core/shared/metadata.utils';
 
 @Component({
   selector: 'ds-edit-bitstream-page',
@@ -388,7 +389,7 @@ export class EditBitstreamPageComponent implements OnInit, OnDestroy {
    */
   onSubmit() {
     const updatedValues = this.formGroup.getRawValue();
-    const newBitstream = this.formToBitstream(updatedValues);
+    this.formToBitstream(updatedValues);
     const selectedFormat = this.formats.find((f: BitstreamFormat) => f.id === updatedValues.formatContainer.selectedFormat);
     const isNewFormat = selectedFormat.id !== this.originalFormat.id;
 
@@ -398,14 +399,14 @@ export class EditBitstreamPageComponent implements OnInit, OnDestroy {
       extraOperations.push(operation);
     }
 
-    const updatedBitstream$ = this.bitstreamService.update(newBitstream, extraOperations).pipe(
+    const updatedBitstream$ = this.bitstreamService.update(this.bitstream, extraOperations).pipe(
       tap(() => this.bitstreamService.commitUpdates()),
       getSucceededRemoteData(),
       getRemoteDataPayload()
     );
 
     if (isNewFormat) {
-      const updatedFormatResponse$ = this.bitstreamService.updateFormat(newBitstream, selectedFormat);
+      const updatedFormatResponse$ = this.bitstreamService.updateFormat(this.bitstream, selectedFormat);
       observableCombineLatest(updatedBitstream$, updatedFormatResponse$).subscribe(([bitstream, formatResponse]) => {
         this.onSuccess(bitstream, formatResponse);
       });
@@ -434,24 +435,16 @@ export class EditBitstreamPageComponent implements OnInit, OnDestroy {
    * Parse form data to an updated bitstream object
    * @param rawForm   Raw form data
    */
-  formToBitstream(rawForm): Bitstream {
-    const newBitstream = cloneDeep(this.bitstream);
+  formToBitstream(rawForm) {
+    const newMetadata = cloneDeep(this.bitstream.metadata);
     // TODO: Set bitstream to primary when supported
     const primary = rawForm.fileNamePrimaryContainer.primaryBitstream;
-    newBitstream.name = rawForm.fileNamePrimaryContainer.fileName;
-    newBitstream.description = rawForm.descriptionContainer.description;
-
-    const otherFormat = rawForm.formatContainer.otherFormat;
-    if (isNotEmpty(otherFormat)) {
-      const currentOtherFormat = newBitstream.firstMetadata('dc.format');
-      if (hasValue(currentOtherFormat)) {
-        currentOtherFormat.value = otherFormat;
-      } else {
-        newBitstream.metadata['dc.format'] = [Object.assign(new MetadataValue(), { value: otherFormat })];
-      }
+    Metadata.setFirstValue(newMetadata, 'dc.title', rawForm.fileNamePrimaryContainer.fileName);
+    Metadata.setFirstValue(newMetadata, 'dc.description', rawForm.descriptionContainer.description);
+    if (isNotEmpty(rawForm.formatContainer.otherFormat)) {
+      Metadata.setFirstValue(newMetadata, 'dc.format', rawForm.formatContainer.otherFormat);
     }
-
-    return newBitstream;
+    this.bitstream.metadata = newMetadata;
   }
 
   /**

src/app/core/data/dso-change-analyzer.service.ts

@@ -4,6 +4,8 @@ import { ChangeAnalyzer } from './change-analyzer';
 import { NormalizedDSpaceObject } from '../cache/models/normalized-dspace-object.model';
 import { Injectable } from '@angular/core';
 import { DSpaceObject } from '../shared/dspace-object.model';
+import { MetadataMap } from '../shared/metadata.models';
+import { cloneDeep } from 'lodash';
 
 /**
  * A class to determine what differs between two
@@ -22,9 +24,21 @@ export class DSOChangeAnalyzer<T extends DSpaceObject> implements ChangeAnalyzer
    *    The second object to compare
    */
   diff(object1: T | NormalizedDSpaceObject<T>, object2: T | NormalizedDSpaceObject<T>): Operation[] {
-    return compare(object1.metadata, object2.metadata)
-      // Filter out operations on UUIDs, as they should never change
-      .filter((operation: Operation) => !operation.path.endsWith('/uuid'))
+    return compare(this.filterUUIDsFromMetadata(object1.metadata), this.filterUUIDsFromMetadata(object2.metadata))
       .map((operation: Operation) => Object.assign({}, operation, { path: '/metadata' + operation.path }));
   }
+
+  /**
+   * Filter the UUIDs out of a MetadataMap
+   * @param metadata
+   */
+  filterUUIDsFromMetadata(metadata: MetadataMap): MetadataMap {
+    const result = cloneDeep(metadata);
+    for (const key of Object.keys(result)) {
+      for (const metadataValue of result[key]) {
+        metadataValue.uuid = undefined;
+      }
+    }
+    return result;
+  }
 }

src/app/core/shared/metadata.utils.ts

@@ -1,4 +1,4 @@
-import { isEmpty, isNotUndefined, isUndefined } from '../../shared/empty.util';
+import { isEmpty, isNotEmpty, isNotUndefined, isUndefined } from '../../shared/empty.util';
 import {
   MetadataMapInterface,
   MetadataValue,
@@ -215,4 +215,19 @@ export class Metadata {
       });
     return metadataMap;
   }
+
+  /**
+   * Set the first value of a metadata by field key
+   * Creates a new MetadataValue if the field doesn't exist yet
+   * @param mdMap   The map to add/change values in
+   * @param key     The metadata field
+   * @param value   The value to add
+   */
+  public static setFirstValue(mdMap: MetadataMapInterface, key: string, value: string) {
+    if (isNotEmpty(mdMap[key])) {
+      mdMap[key][0].value = value;
+    } else {
+      mdMap[key] = [Object.assign(new MetadataValue(), { value: value })]
+    }
+  }
 }