Adaptive learning: Allow editors to edit the competency link weight

src/main/webapp/app/entities/competency.model.ts

@@ -46,7 +46,11 @@ export enum CourseCompetencyType {
 
 export const DEFAULT_MASTERY_THRESHOLD = 100;
 
+export const HIGH_COMPETENCY_LINK_WEIGHT = 1;
 export const MEDIUM_COMPETENCY_LINK_WEIGHT = 0.5;
+export const LOW_COMPETENCY_LINK_WEIGHT = 0.25;
+export const LOW_COMPETENCY_LINK_WEIGHT_CUT_OFF = 0.375; // halfway between low and medium
+export const MEDIUM_COMPETENCY_LINK_WEIGHT_CUT_OFF = 0.75; // halfway between medium and high
 
 export abstract class BaseCompetency implements BaseEntity {
     id?: number;

src/main/webapp/app/shared/competency-selection/competency-selection.component.html

@@ -32,6 +32,23 @@
                                 <fa-icon [icon]="getIcon(competencyLink.competency.taxonomy)" [fixedWidth]="true" />
                                 {{ competencyLink.competency.title }}
                             </label>
+                            @if (checkboxStates[competencyLink.competency.id]) {
+                                <select
+                                    [ngModel]="
+                                        competencyLink.weight < LOW_COMPETENCY_LINK_WEIGHT_CUT_OFF
+                                            ? LOW_COMPETENCY_LINK_WEIGHT
+                                            : competencyLink.weight < MEDIUM_COMPETENCY_LINK_WEIGHT_CUT_OFF
+                                              ? MEDIUM_COMPETENCY_LINK_WEIGHT
+                                              : HIGH_COMPETENCY_LINK_WEIGHT
+                                    "
+                                    (ngModelChange)="updateLinkWeight(competencyLink, $event)"
+                                    ngbTooltip="{{ 'artemisApp.competency.link.weightTooltip' | artemisTranslate }}"
+                                >
+                                    <option [ngValue]="LOW_COMPETENCY_LINK_WEIGHT" [jhiTranslate]="'artemisApp.competency.link.weightLabels.low'"></option>
+                                    <option [ngValue]="MEDIUM_COMPETENCY_LINK_WEIGHT" [jhiTranslate]="'artemisApp.competency.link.weightLabels.medium'"></option>
+                                    <option [ngValue]="HIGH_COMPETENCY_LINK_WEIGHT" [jhiTranslate]="'artemisApp.competency.link.weightLabels.high'"></option>
+                                </select>
+                            }
                         </div>
                     }
                 }

src/main/webapp/app/shared/competency-selection/competency-selection.component.ts

@@ -1,7 +1,16 @@
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnInit, Output, forwardRef } from '@angular/core';
 import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
 import { faQuestionCircle } from '@fortawesome/free-solid-svg-icons';
-import { CompetencyLearningObjectLink, CourseCompetency, MEDIUM_COMPETENCY_LINK_WEIGHT, getIcon } from 'app/entities/competency.model';
+import {
+    CompetencyLearningObjectLink,
+    CourseCompetency,
+    HIGH_COMPETENCY_LINK_WEIGHT,
+    LOW_COMPETENCY_LINK_WEIGHT,
+    LOW_COMPETENCY_LINK_WEIGHT_CUT_OFF,
+    MEDIUM_COMPETENCY_LINK_WEIGHT,
+    MEDIUM_COMPETENCY_LINK_WEIGHT_CUT_OFF,
+    getIcon,
+} from 'app/entities/competency.model';
 import { ActivatedRoute } from '@angular/router';
 import { CourseStorageService } from 'app/course/manage/course-storage.service';
 import { finalize } from 'rxjs';
@@ -40,6 +49,12 @@ export class CompetencySelectionComponent implements OnInit, ControlValueAccesso
     // eslint-disable-next-line @typescript-eslint/no-unused-vars
     _onChange = (value: any) => {};
 
+    protected readonly HIGH_COMPETENCY_LINK_WEIGHT = HIGH_COMPETENCY_LINK_WEIGHT;
+    protected readonly MEDIUM_COMPETENCY_LINK_WEIGHT = MEDIUM_COMPETENCY_LINK_WEIGHT;
+    protected readonly LOW_COMPETENCY_LINK_WEIGHT = LOW_COMPETENCY_LINK_WEIGHT;
+    protected readonly LOW_COMPETENCY_LINK_WEIGHT_CUT_OFF = LOW_COMPETENCY_LINK_WEIGHT_CUT_OFF; // halfway between low and medium
+    protected readonly MEDIUM_COMPETENCY_LINK_WEIGHT_CUT_OFF = MEDIUM_COMPETENCY_LINK_WEIGHT_CUT_OFF; // halfway between medium and high
+
     constructor(
         private route: ActivatedRoute,
         private courseStorageService: CourseStorageService,
@@ -122,7 +137,19 @@ export class CompetencySelectionComponent implements OnInit, ControlValueAccesso
         }
     }
 
+    updateLinkWeight(link: CompetencyLearningObjectLink, value: number) {
+        link.weight = value;
+
+        this._onChange(this.selectedCompetencyLinks);
+        this.valueChange.emit(this.selectedCompetencyLinks);
+    }
+
     writeValue(value?: CompetencyLearningObjectLink[]): void {
+        this.competencyLinks?.forEach((link) => {
+            const selectedLink = value?.find((value) => value.competency?.id === link.competency?.id);
+            link.weight = selectedLink?.weight ?? MEDIUM_COMPETENCY_LINK_WEIGHT;
+        });
+
         if (value && this.competencyLinks) {
             // Compare the ids of the competencies instead of the whole objects
             const ids = value.map((el) => el.competency?.id);

src/main/webapp/i18n/de/competency.json

@@ -117,7 +117,13 @@
             "link": {
                 "title": "Verbundene Kompetenzen",
                 "lectureUnit": "Verbinde diese Vorlesungseinheit wahlweise mit einer oder mehreren Kompetenzen.",
-                "exercise": "Verbinde diese Übung wahlweise mit einer oder mehreren Kompetenzen."
+                "exercise": "Verbinde diese Übung wahlweise mit einer oder mehreren Kompetenzen.",
+                "weightTooltip": "Die Relevanz dieses Lernobjektes für die Kompetenz.",
+                "weightLabels": {
+                    "low": "Niedrig",
+                    "medium": "Mittel",
+                    "high": "Hoch"
+                }
             },
             "competencyCard": {
                 "connectedLectureUnits": "Verbundene Vorlesungseinheiten",

src/main/webapp/i18n/en/competency.json

@@ -117,7 +117,13 @@
             "link": {
                 "title": "Linked Competencies",
                 "lectureUnit": "Optionally link this lecture unit to one or more competencies.",
-                "exercise": "Optionally link this exercise to one or more competencies."
+                "exercise": "Optionally link this exercise to one or more competencies.",
+                "weightTooltip": "The relevance of this learning object for the competency.",
+                "weightLabels": {
+                    "low": "Low",
+                    "medium": "Medium",
+                    "high": "High"
+                }
             },
             "competencyCard": {
                 "connectedLectureUnits": "Linked Lecture Units",

src/test/javascript/spec/component/shared/competency-selection.component.spec.ts

@@ -14,6 +14,7 @@ import { By } from '@angular/platform-browser';
 import { CourseStorageService } from 'app/course/manage/course-storage.service';
 import { ChangeDetectorRef } from '@angular/core';
 import { CourseCompetencyService } from 'app/course/competencies/course-competency.service';
+import { Prerequisite } from 'app/entities/prerequisite.model';
 
 describe('CompetencySelection', () => {
     let fixture: ComponentFixture<CompetencySelectionComponent>;
@@ -122,6 +123,22 @@ describe('CompetencySelection', () => {
         expect(component.selectedCompetencyLinks?.first()?.competency?.title).toBe('test');
     });
 
+    it('should update link weight when value is written', () => {
+        jest.spyOn(courseStorageService, 'getCourse').mockReturnValue({
+            competencies: [{ id: 1, title: 'test' } as Competency, { id: 2, title: 'testAgain' } as Prerequisite, { id: 3, title: 'testMore' } as Competency],
+        });
+
+        fixture.detectChanges();
+
+        component.writeValue([
+            new CompetencyLearningObjectLink({ id: 1, title: 'other' } as Competency, 0.5),
+            new CompetencyLearningObjectLink({ id: 3, title: 'otherMore' } as Competency, 1),
+        ]);
+        expect(component.selectedCompetencyLinks).toBeArrayOfSize(2);
+        expect(component.selectedCompetencyLinks?.first()?.weight).toBe(0.5);
+        expect(component.selectedCompetencyLinks?.last()?.weight).toBe(1);
+    });
+
     it('should trigger change detection after loading competencies', () => {
         jest.spyOn(courseStorageService, 'getCourse').mockReturnValue({ competencies: undefined });
         const changeDetector = fixture.debugElement.injector.get(ChangeDetectorRef);