chore(edit-content): Issues with n-1 relationship

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/components/dot-select-existing-content/dot-select-existing-content.component.html

@@ -140,13 +140,15 @@
             <p-button
                 [label]="'Cancel' | dm"
                 [outlined]="true"
-                (onClick)="closeDialog()"
+                (onClick)="cancel()"
                 [text]="true"
-                severity="primary" />
+                severity="primary"
+                data-testId="cancel-button" />
             <p-button
                 [disabled]="totalItems === 0"
-                (onClick)="closeDialog()"
-                [label]="$applyLabel()" />
+                (onClick)="applyChanges()"
+                [label]="$applyLabel()"
+                data-testId="apply-button" />
         </div>
     </div>
 </div>

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/components/dot-select-existing-content/dot-select-existing-content.component.spec.ts

@@ -105,18 +105,24 @@ describe('DotSelectExistingContentComponent', () => {
             ];
             spectator.component.$selectedItems.set(mockItems);
 
-            spectator.component.closeDialog();
+            spectator.component.applyChanges();
 
             expect(dialogRef.close).toHaveBeenCalledWith(mockItems);
         });
 
         it('should close dialog with empty array when no items selected', () => {
             spectator.component.$selectedItems.set([]);
 
-            spectator.component.closeDialog();
+            spectator.component.applyChanges();
 
             expect(dialogRef.close).toHaveBeenCalledWith([]);
         });
+
+        it('should close dialog when cancel button is clicked', () => {
+            spectator.component.cancel();
+
+            expect(dialogRef.close).toHaveBeenCalledWith();
+        });
     });
 
     describe('Selected Items State', () => {

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/components/dot-select-existing-content/dot-select-existing-content.component.ts

@@ -162,10 +162,18 @@ export class DotSelectExistingContentComponent implements OnInit {
      * A method that closes the existing content dialog.
      * It sets the visibility signal to false, hiding the dialog.
      */
-    closeDialog() {
+    applyChanges() {
         this.#dialogRef.close(this.$items());
     }
 
+    /**
+     * A method that closes the existing content dialog.
+     * It sets the visibility signal to false, hiding the dialog.
+     */
+    cancel() {
+        this.#dialogRef.close();
+    }
+
     /**
      * Checks if an item is selected.
      * @param item - The item to check.

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/dot-edit-content-relationship-field.component.ts

@@ -105,12 +105,6 @@ export class DotEditContentRelationshipFieldComponent implements ControlValueAcc
                 command: () => {
                     this.showExistingContentDialog();
                 }
-            },
-            {
-                label: this.#dotMessageService.get('dot.file.relationship.field.table.new.content'),
-                command: () => {
-                    // TODO: Implement new content
-                }
             }
         ];
     });
@@ -260,7 +254,7 @@ export class DotEditContentRelationshipFieldComponent implements ControlValueAcc
 
         this.#dialogRef.onClose
             .pipe(
-                filter((file) => !!file),
+                filter((items) => !!items),
                 takeUntilDestroyed(this.#destroyRef)
             )
             .subscribe((items: DotCMSContentlet[]) => {

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/dot-edit-content-relationship-field.constants.ts

@@ -1,5 +1,18 @@
 import { RelationshipTypes } from './models/relationship.models';
 
+/**
+ * Maps cardinality numbers to RelationshipTypes enum values.
+ * Used to determine the type of relationship between content types.
+ *
+ * @constant
+ * @type {Record<number, RelationshipTypes>}
+ *
+ * @property {RelationshipTypes} 0 - One-to-Many relationship type
+ * @property {RelationshipTypes} 1 - Many-to-Many relationship type
+ * @property {RelationshipTypes} 2 - One-to-One relationship type
+ * @property {RelationshipTypes} 3 - Many-to-One relationship type
+ */
+
 export const RELATIONSHIP_OPTIONS = {
     0: RelationshipTypes.ONE_TO_MANY,
     1: RelationshipTypes.MANY_TO_MANY,

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/utils/index.spec.ts

@@ -8,7 +8,6 @@ import { RelationshipTypes } from '../models/relationship.models';
 describe('Relationship Field Utils', () => {
     describe('getSelectionModeByCardinality', () => {
         it('should return "single" for ONE_TO_ONE relationship', () => {
-            // Find the cardinality value for ONE_TO_ONE
             const oneToOneCardinality = Object.entries(RELATIONSHIP_OPTIONS).find(
                 ([_, value]) => value === RelationshipTypes.ONE_TO_ONE
             )?.[0];
@@ -17,8 +16,16 @@ describe('Relationship Field Utils', () => {
             expect(result).toBe('single');
         });
 
+        it('should return "single" for MANY_TO_ONE relationship', () => {
+            const manyToOneCardinality = Object.entries(RELATIONSHIP_OPTIONS).find(
+                ([_, value]) => value === RelationshipTypes.MANY_TO_ONE
+            )?.[0];
+
+            const result = getSelectionModeByCardinality(Number(manyToOneCardinality));
+            expect(result).toBe('single');
+        });
+
         it('should return "multiple" for ONE_TO_MANY relationship', () => {
-            // Find the cardinality value for ONE_TO_MANY
             const oneToManyCardinality = Object.entries(RELATIONSHIP_OPTIONS).find(
                 ([_, value]) => value === RelationshipTypes.ONE_TO_MANY
             )?.[0];
@@ -28,7 +35,10 @@ describe('Relationship Field Utils', () => {
         });
 
         it('should throw error for invalid cardinality', () => {
-            expect(() => getSelectionModeByCardinality(999)).toThrow('Invalid relationship type');
+            const invalidCardinality = 999;
+            expect(() => getSelectionModeByCardinality(invalidCardinality)).toThrow(
+                `Invalid relationship type for cardinality: ${invalidCardinality}`
+            );
         });
     });
 

core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/utils/index.ts

@@ -16,7 +16,11 @@ export function getSelectionModeByCardinality(cardinality: number) {
         throw new Error(`Invalid relationship type for cardinality: ${cardinality}`);
     }
 
-    return relationshipType === RelationshipTypes.ONE_TO_ONE ? 'single' : 'multiple';
+    const isSingleMode =
+        relationshipType === RelationshipTypes.ONE_TO_ONE ||
+        relationshipType === RelationshipTypes.MANY_TO_ONE;
+
+    return isSingleMode ? 'single' : 'multiple';
 }
 
 /**