fix(value): fix boolean value issue

src/app/workspace/resource/operations/display-edit/display-edit.component.html

@@ -47,11 +47,11 @@
                         (click)="toggleComment()">
                     <mat-icon>comment</mat-icon>
                 </button>
-                <span [matTooltip]="(canDelete ? 'delete' : 'This value cannot be deleted because at least one value is required')">
+                <span [matTooltip]="((canDelete && valueTypeOrClass != constants.BooleanValue ) ? 'delete' : 'This value cannot be deleted because at least one value is required')">
                     <button mat-button
                         class="delete"
                         *ngIf="!readOnlyValue && canModify && !editModeActive && projectStatus"
-                        [disabled]="!canDelete"
+                        [disabled]="!canDelete || valueTypeOrClass === constants.BooleanValue"
                         (click)="openDialog()">
                         <mat-icon>delete</mat-icon>
                     </button>

src/app/workspace/resource/properties/properties.component.html

@@ -137,11 +137,7 @@ <h3 class="label mat-title">
                     </div>
                     <!-- Add button -->
                     <div *ngIf="addValueIsAllowed(prop) && project?.status">
-                        <!-- boolen value will always be displayed even if value is not defined (value = false) -->
-                        <span *ngIf="prop.propDef.objectType === booleanValueTypeIri">
-                            <app-boolean-value [mode]="'read'" class="boolean-value"></app-boolean-value>
-                        </span>
-                        <button *ngIf="prop.propDef.objectType !== booleanValueTypeIri" mat-icon-button type="button" class="value-action create"
+                        <button mat-icon-button type="button" class="value-action create"
                             (click)="showAddValueForm(prop, $event)"
                             title="Add a new value">
                             <mat-icon>add_box</mat-icon>

src/app/workspace/resource/properties/properties.component.spec.ts

@@ -388,8 +388,7 @@ describe('PropertiesComponent', () => {
 
             let addButtons = propertyViewComponentDe.queryAll(By.css('button.create'));
 
-            // current amount of buttons should equal 17
-            // because the boolean property shouldn't have an add button if it has a value
+            // current amount of buttons should equal 18
             // standoff links value and has incoming link value are system props and cannot be added: -2
             expect(addButtons.length).toEqual(17);
 
@@ -399,14 +398,9 @@ describe('PropertiesComponent', () => {
             testHostFixture.detectChanges();
 
             // now the boolean property should have an add button
-            // so the amount of add buttons on the page should increase by 1
             // standoff links value and has incoming link value are system props and cannot be added: -2
             addButtons = propertyViewComponentDe.queryAll(By.css('button.create'));
-            expect(addButtons.length).toEqual(17);
-
-            // in case of boolean value, we do not display the add button, but the boolean value itself
-            const booleanValue = propertyViewComponentDe.queryAll(By.css('.boolean-value'));
-            expect(booleanValue.length).toEqual(1);
+            expect(addButtons.length).toEqual(18);
 
         });
 

src/app/workspace/search/advanced-search/resource-and-property-selection/search-select-property/specify-property-value/specify-property-value.component.ts

@@ -122,7 +122,7 @@ export class SpecifyPropertyValueComponent implements OnChanges, OnDestroy {
                 break;
 
             case Constants.BooleanValue:
-                this.comparisonOperators = [new Equals()];
+                this.comparisonOperators = [new Equals(), new Exists()];
                 break;
 
             case Constants.UriValue: