Development: Improve client code quality for learning paths
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Learning paths: Improve code qualityLearning path: Improve code quality
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WalkthroughThe pull request introduces multiple enhancements across various components in an Angular application. Key changes include the implementation of Changes
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Actionable comments posted: 7
🧹 Outside diff range and nitpick comments (33)
src/main/webapp/app/course/learning-paths/components/learning-path-exercise/learning-path-exercise.component.ts (3)
13-14: Consider adding JSDoc comments for input properties.While the signal inputs are well-defined, adding JSDoc comments would improve maintainability by documenting the purpose and expected values of these required inputs.
+/** The ID of the course this exercise belongs to */ public readonly courseId = input.required<number>(); +/** The ID of the exercise to be displayed */ public readonly exerciseId = input.required<number>();
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16-28: Consider optimizing effect cleanup and memory management.While the implementation is functional, there are opportunities for improvement:
- The effect should be cleaned up when the component is destroyed
- The component reference should be stored to prevent unnecessary recreations
Consider this improved implementation:
private readonly viewContainerRef = inject(ViewContainerRef); +private exerciseComponentRef: any; constructor() { - effect(() => { + effect((onCleanup) => { this.viewContainerRef.clear(); - // The exercise component can not be directly added to the template as before rendering the learning path mode - // has to be activated. This is done by setting the learningPathMode property of the exercise component to true. - const exerciseComponent = this.viewContainerRef.createComponent(CourseExerciseDetailsComponent); - exerciseComponent.instance.courseId = this.courseId(); - exerciseComponent.instance.exerciseId = this.exerciseId(); - exerciseComponent.instance.learningPathMode = true; + this.exerciseComponentRef = this.viewContainerRef.createComponent(CourseExerciseDetailsComponent); + const instance = this.exerciseComponentRef.instance; + instance.courseId = this.courseId(); + instance.exerciseId = this.exerciseId(); + instance.learningPathMode = true; + + onCleanup(() => { + this.exerciseComponentRef?.destroy(); + }); }); }
Test coverage needs improvement
The current test implementation only covers basic initialization and input properties but lacks critical test cases for:
- Dynamic component creation using ViewContainerRef
- Verification of CourseExerciseDetailsComponent instantiation
- Proper setting of learningPathMode property
- OnPush change detection behavior
Key areas to add tests:
- Verify if ViewContainerRef.clear() is called
- Check if CourseExerciseDetailsComponent is created with correct properties
- Test if learningPathMode is set to true on the created component
- Validate effect execution and component lifecycle
🔗 Analysis chain
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1-28: Verify test coverage for the component.Let's ensure proper test coverage exists for this component, especially for the OnPush change detection and dynamic component creation.
Let me gather more information about the test implementation to verify if it properly covers the component's functionality.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Check for corresponding test file and its contents echo "Checking for test coverage..." rg -l "LearningPathExerciseComponent" --glob "**/*.spec.ts" # Check if the tests cover OnPush and dynamic component creation rg -A 5 "describe.*LearningPathExerciseComponent" --glob "**/*.spec.ts"Length of output: 1260
Script:
#!/bin/bash # Check the complete test implementation cat "src/test/javascript/spec/component/learning-paths/components/learning-path-exercise.component.spec.ts"Length of output: 1265
src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts (3)
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15-24: Consider strengthening type safetyWhile the signal implementation is good, we can improve type safety.
Consider this improvement:
- private readonly internalCompetencyGraph = signal<CompetencyGraphDTO>({ + private readonly internalCompetencyGraph = signal<CompetencyGraphDTO>({ nodes: [], edges: [], - }); + } satisfies CompetencyGraphDTO); - readonly nodes = computed(() => this.internalCompetencyGraph().nodes); + readonly nodes = computed<CompetencyGraphDTO['nodes']>(() => this.internalCompetencyGraph().nodes);
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34-37: Prevent potential memory leaksThe Subjects need to be properly cleaned up to prevent memory leaks.
Add cleanup logic:
+ private readonly destroy$ = new Subject<void>(); + readonly layout = signal('dagreCluster'); readonly update$ = new Subject<boolean>(); readonly center$ = new Subject<boolean>(); readonly zoomToFit$ = new Subject<NgxGraphZoomOptions>(); + + ngOnDestroy(): void { + this.destroy$.next(); + this.destroy$.complete(); + [this.update$, this.center$, this.zoomToFit$].forEach(subject => subject.complete()); + }
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43-55: Consider optimizing for large graphsWhile the implementation is clean, it could be optimized for large graphs.
Consider using a Map for faster node lookups:
setNodeDimension(sizeUpdate: SizeUpdate): void { + const nodeIndex = this.internalCompetencyGraph().nodes.findIndex(node => node.id === sizeUpdate.id); + if (nodeIndex === -1) return; + this.internalCompetencyGraph.update(({ nodes, edges }) => { - return { - nodes: nodes.map((node) => { - if (node.id === sizeUpdate.id) { - node.dimension = sizeUpdate.dimension; - } - return node; - }), - edges: edges, - }; + const updatedNodes = [...nodes]; + updatedNodes[nodeIndex] = { ...updatedNodes[nodeIndex], dimension: sizeUpdate.dimension }; + return { nodes: updatedNodes, edges }; }); }src/main/webapp/app/course/learning-paths/components/learning-paths-analytics/learning-paths-analytics.component.ts (2)
13-14: Great performance optimization with OnPush!The implementation of
ChangeDetectionStrategy.OnPushis an excellent choice for optimizing change detection, especially given the PR's focus on performance improvements.Consider implementing
ngOnDestroyto clean up any subscriptions if you add any in the future, even though there are none currently, to maintain good practices for memory management.
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40-50: Consider optimizing loading state updates.The loading state handling is correct, but consider using a try-finally pattern to ensure loading state is always reset, even if future code modifications add early returns.
Here's a more robust implementation:
private async loadInstructionCompetencyGraph(courseId: number): Promise<void> { this.isLoading.set(true); try { - const instructorCompetencyGraph = await this.learningPathApiService.getLearningPathInstructorCompetencyGraph(courseId); - this.instructorCompetencyGraph.set(instructorCompetencyGraph); + const graph = await this.learningPathApiService.getLearningPathInstructorCompetencyGraph(courseId); + this.instructorCompetencyGraph.set(graph); } catch (error) { onError(this.alertService, error); + this.instructorCompetencyGraph.set(undefined); } finally { this.isLoading.set(false); } }src/main/webapp/app/course/learning-paths/components/competency-node/competency-node.component.ts (2)
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24-31: Consider optimizing DOM measurements.The dimension calculations in
ngAfterViewInitcould trigger layout thrashing when multiple nodes are rendered. Consider usingResizeObserverfor more efficient dimension tracking.Here's an improved implementation:
+ private readonly resizeObserver = new ResizeObserver((entries) => { + const entry = entries[0]; + if (entry) { + const width = entry.contentRect.width; + const height = this.nodeHeight; + this.onSizeSet.emit({ id: this.competencyNode().id, dimension: { height, width } }); + } + }); ngAfterViewInit(): void { - this.setDimensions(); + this.resizeObserver.observe(this.element.nativeElement); } + ngOnDestroy(): void { + this.resizeObserver.disconnect(); + }
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38-71: Refactor color state logic for better maintainability.The similar switch statements for color states could be refactored into a more maintainable structure. Also, consider adding ARIA attributes for accessibility.
Here's a more maintainable approach:
private readonly colorState = computed(() => { const value = this.value(); const type = this.valueType(); if (type === CompetencyGraphNodeValueType.MASTERY_PROGRESS || type === CompetencyGraphNodeValueType.AVERAGE_MASTERY_PROGRESS) { if (value >= 100) return 'green'; if (value > 0) return 'yellow'; return 'gray'; } return 'default'; }); // Template usage: // [attr.aria-label]="'learning-path.competency.progress.' + colorState()"src/main/webapp/app/course/learning-paths/components/competency-graph-modal/competency-graph-modal.component.ts (2)
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20-30: Consider extracting icon constant.The
closeIconcould be moved outside the class as a constant since it's a static value. This would improve memory usage as the icon wouldn't be recreated for each component instance.+const CLOSE_ICON = faXmark; + export class CompetencyGraphModalComponent { - protected readonly closeIcon = faXmark; + protected readonly closeIcon = CLOSE_ICON;
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53-63: Consider implementing memory leak prevention.The static modal opening method could benefit from the following improvements:
- Return the modal reference to allow proper cleanup
- Consider using a service instead of a static method for better testability and loose coupling
- static openCompetencyGraphModal(modalService: NgbModal, learningPathId: number): void { + static openCompetencyGraphModal(modalService: NgbModal, learningPathId: number): NgbModalRef { const modalRef = modalService.open(CompetencyGraphModalComponent, { size: 'xl', backdrop: 'static', windowClass: 'competency-graph-modal', }); modalRef.componentInstance.learningPathId = signal<number>(learningPathId); + return modalRef; }src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.html (1)
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58-65: Consider adding aria-label for better accessibility.The pagination implementation looks good with the new
maxSizeproperty limiting visible page numbers. Consider adding an aria-label for better screen reader support.<ngb-pagination [maxSize]="5" [collectionSize]="collectionSize()" [page]="page()" (pageChange)="setPage($event)" [pageSize]="pageSize()" size="sm" + aria-label="Learning paths navigation" class="d-flex justify-content-end mt-2 pagination" />src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.ts (2)
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38-46: Consider implementing effect cleanupWhile the effect implementation is correct, it should be cleaned up when the component is destroyed to prevent memory leaks.
Consider implementing this pattern:
+ private readonly destroy = new DestroyRef(); constructor() { - effect( + effect((onCleanup) => { () => { const learningPathId = this.learningPathId(); untracked(() => this.learningPathNavigationService.loadLearningPathNavigation(learningPathId)); }, { allowSignalWrites: true }, + onCleanup(() => { + // Cleanup logic here if needed + }); ); }
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58-60: Add loading state handling to completeLearningPathConsider adding loading state handling to
completeLearningPath()for consistency with other methods and better user feedback.+ readonly isCompletingPath = signal<boolean>(false); async completeLearningPath(): Promise<void> { + this.isCompletingPath.set(true); + try { await this.learningPathNavigationService.completeLearningPath(); + } finally { + this.isCompletingPath.set(false); + } }src/main/webapp/app/course/learning-paths/pages/learning-path-instructor-page/learning-path-instructor-page.component.ts (1)
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45-65: Consider improving error handling and loading states.While the current implementation is functional, consider these improvements:
- Use separate loading states for different operations
- Add success notification for enableLearningPaths
- Enhance type safety in course update
- readonly isLoading = signal<boolean>(false); + private readonly loadingStates = signal<{ + course: boolean; + enablePath: boolean; + }>({ course: false, enablePath: false }); + readonly isLoading = computed(() => + Object.values(this.loadingStates()).some(state => state) + ); private async loadCourse(courseId: number): Promise<void> { try { - this.isLoading.set(true); + this.loadingStates.update(state => ({ ...state, course: true })); const courseBody = await lastValueFrom(this.courseManagementService.findOneForDashboard(courseId)); this.course.set(courseBody.body!); } catch (error) { onError(this.alertService, error); } finally { - this.isLoading.set(false); + this.loadingStates.update(state => ({ ...state, course: false })); } } protected async enableLearningPaths(): Promise<void> { try { - this.isLoading.set(true); + this.loadingStates.update(state => ({ ...state, enablePath: true })); await this.learningPathApiService.enableLearningPaths(this.courseId()); this.course.update((course) => ({ ...course!, learningPathsEnabled: true })); + this.alertService.success('learningPaths.enabled'); } catch (error) { onError(this.alertService, error); } finally { - this.isLoading.set(false); + this.loadingStates.update(state => ({ ...state, enablePath: false })); } }src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/learning-path-nav-overview-learning-objects.component.ts (4)
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43-50: Optimize effect cleanup to prevent memory leaksThe effect should be cleaned up when the component is destroyed. Consider moving the effect to a separate method and using the OnDestroy lifecycle hook.
+ private readonly destroy = signal(false); constructor() { effect( () => { + if (this.destroy()) return; untracked(() => this.loadLearningObjects()); }, { allowSignalWrites: true }, ); } + ngOnDestroy() { + this.destroy.set(true); + }
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52-65: Enhance error handling specificityThe error handling could be more specific to provide better user feedback. Consider catching specific error types and providing appropriate error messages.
try { this.isLoading.set(true); const learningObjects = await this.learningPathApiService.getLearningPathCompetencyLearningObjects(this.learningPathId(), this.competencyId()); this.learningObjects.set(learningObjects); - } catch (error) { - this.alertService.error(error); + } catch (error: unknown) { + if (error instanceof Error) { + this.alertService.error('learningPath.errors.loadingObjects', { message: error.message }); + } else { + this.alertService.error('learningPath.errors.unknown'); + } } finally { this.isLoading.set(false); }
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67-73: Make unreleased check more explicitThe unreleased check logic could be more explicit and provide better user feedback.
async selectLearningObject(learningObject: LearningPathNavigationObjectDTO): Promise<void> { - if (!learningObject.unreleased) { + if (learningObject.unreleased) { + this.alertService.warning('learningPath.messages.objectNotYetAvailable'); + return; + } await this.learningPathNavigationService.loadRelativeLearningPathNavigation(this.learningPathId(), learningObject); this.onLearningObjectSelected.emit(); - } }
Translation issue found: Untranslated learning object name
The component has proper translation directives for most UI elements, but the learning object name is displayed without translation:
<span class="col-md-auto p-0">{{ learningObject.name }}</span>Consider wrapping the learning object name in a translation directive if it needs to be localized.
🔗 Analysis chain
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1-73: Verify translation coverageLet's ensure all user-facing strings are properly translated.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for hardcoded strings in the component and template files echo "Searching for potential hardcoded strings..." rg -g '*.{ts,html}' -n "'[^']+'" src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/ # Search for translation keys in i18n files echo "Checking for translation keys..." rg -g '*.json' "learningPath\." src/main/webapp/i18n/Length of output: 3780
Script:
#!/bin/bash # Let's check the template file content to verify translation usage echo "Checking template content..." cat src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/learning-path-nav-overview-learning-objects.component.html # Let's also check for any translation keys in the component's directory echo -e "\nChecking for jhiTranslate usage..." rg -g '*.html' 'jhiTranslate' src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/Length of output: 3758
src/main/webapp/app/course/learning-paths/components/learning-path-lecture-unit/learning-path-lecture-unit.component.ts (2)
20-21: Excellent performance optimization with OnPush!The implementation of
ChangeDetectionStrategy.OnPushwill improve performance by reducing change detection cycles. This is particularly beneficial for components that display large datasets or are frequently updated.Consider implementing
trackByfunctions in any*ngFordirectives in the template to further optimize rendering performance with OnPush change detection.
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61-66: Improve type safety in completion handling.The use of non-null assertion operator (
!) should be avoided in favor of proper type guards.Consider this safer implementation:
setLearningObjectCompletion(completionEvent: LectureUnitCompletionEvent): void { - this.lectureUnitService.completeLectureUnit(this.lectureUnit()!.lecture!, completionEvent); - if (this.lectureUnit()?.completed === completionEvent.completed) { + const currentUnit = this.lectureUnit(); + if (!currentUnit?.lecture) { + this.alertService.error('artemis.lectureUnit.errors.noLecture'); + return; + } + this.lectureUnitService.completeLectureUnit(currentUnit.lecture, completionEvent); + if (currentUnit.completed === completionEvent.completed) { this.learningPathNavigationService.setCurrentLearningObjectCompletion(completionEvent.completed); } }src/main/webapp/app/course/learning-paths/components/learning-paths-configuration/learning-paths-configuration.component.ts (4)
1-15: LGTM! Component setup follows Angular best practices.The implementation correctly:
- Uses standalone components
- Implements OnPush change detection for better performance
- Includes translation support via TranslateDirective
Consider organizing imports into these groups (separated by newline):
- Angular core
- External libraries
- Application-specific imports
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28-33: Enhance type safety for learningPathsConfiguration signal.The computed signal
includeAllGradedExercisesEnabledhandles undefined state, but the signal itself could be more strictly typed.-private readonly learningPathsConfiguration = signal<LearningPathsConfigurationDTO | undefined>(undefined); +private readonly learningPathsConfiguration = signal<LearningPathsConfigurationDTO>({ + includeAllGradedExercises: false, + // Add other required properties with default values +});
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45-55: Consider implementing request cancellation for better resource management.The
loadLearningPathsConfigurationmethod could benefit from request cancellation support to prevent race conditions and memory leaks.Consider using
AbortControllerto cancel pending requests when new ones are initiated:private abortController?: AbortController; private async loadLearningPathsConfiguration(courseId: number): Promise<void> { // Cancel any pending request this.abortController?.abort(); this.abortController = new AbortController(); try { this.isConfigLoading.set(true); const learningPathsConfiguration = await this.learningPathApiService .getLearningPathsConfiguration(courseId, this.abortController.signal); this.learningPathsConfiguration.set(learningPathsConfiguration); } catch (error) { if (error.name !== 'AbortError') { onError(this.alertService, error); } } finally { this.isConfigLoading.set(false); } }
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57-63: Consider debouncing configuration changes.The
toggleIncludeAllGradedExercisesmethod immediately updates the state. For better performance with rapid toggles, consider debouncing the changes.private readonly debouncedConfigUpdate = debounceTime(() => { this.configHasBeenChanged.set(true); this.learningPathsConfiguration.update(config => ({ ...config, includeAllGradedExercises: !config.includeAllGradedExercises, })); }, 300); protected toggleIncludeAllGradedExercises(): void { this.debouncedConfigUpdate(); }src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview/learning-path-nav-overview.component.ts (1)
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63-66: Add type safety and error handling to selectLearningObject method.Consider adding error handling for the accordion collapse operation and improving type safety.
- selectLearningObject(): void { - this.onLearningObjectSelected.emit(); - this.competencyAccordion().collapseAll(); - } + async selectLearningObject(): Promise<void> { + try { + this.onLearningObjectSelected.emit(); + await this.competencyAccordion()?.collapseAll(); + } catch (error) { + this.alertService.error('artemis.learningPath.error.accordionCollapse'); + } + }src/main/webapp/app/course/learning-paths/pages/learning-path-student-page/learning-path-student-page.component.ts (3)
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31-33: Consider simplifying the courseId signal transformationThe courseId signal transformation can be made more concise using the Number constructor directly as the mapping function.
-readonly courseId = toSignal(this.activatedRoute.parent!.params.pipe(map((params) => Number(params.courseId))), { requireSync: true }); +readonly courseId = toSignal(this.activatedRoute.parent!.params.pipe(map(params => +params.courseId)), { requireSync: true });
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52-56: Improve error type checkingThe error handling could be more specific by properly typing the error and using type guards.
-if (error.status != 404) { +if (error instanceof HttpErrorResponse && error.status !== 404) { onError(this.alertService, error); }
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67-69: Add type safety checks in startLearningPathThe non-null assertion on learningPath could lead to runtime errors. Consider adding proper type guards.
-await this.learningApiService.startLearningPathForCurrentUser(this.learningPath()!.id); -this.learningPath.update((learningPath) => ({ ...learningPath!, startedByStudent: true })); +const currentPath = this.learningPath(); +if (currentPath) { + await this.learningApiService.startLearningPathForCurrentUser(currentPath.id); + this.learningPath.update((learningPath) => ({ ...learningPath, startedByStudent: true })); +}src/main/webapp/app/course/learning-paths/components/learning-paths-state/learning-paths-state.component.ts (1)
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85-93: Improve translation key handling.Consider using a type-safe approach for translation keys and avoid string concatenation.
private async generateMissingLearningPaths(): Promise<void> { try { await this.learningPathApiService.generateMissingLearningPaths(this.courseId()); - this.alertService.success(`${this.baseTranslationKey}.missing.successAlert`); + this.alertService.success('artemisApp.learningPathManagement.learningPathsState.type.missing.successAlert'); await this.loadLearningPathHealthState(this.courseId()); } catch (error) { onError(this.alertService, error); } }Consider creating a type-safe enum or constant object for translation keys:
const LEARNING_PATH_TRANSLATIONS = { MISSING: 'artemisApp.learningPathManagement.learningPathsState.type.missing', NO_COMPETENCIES: 'artemisApp.learningPathManagement.learningPathsState.type.noCompetencies', NO_RELATIONS: 'artemisApp.learningPathManagement.learningPathsState.type.noRelations', MISSING_SUCCESS: 'artemisApp.learningPathManagement.learningPathsState.type.missing.successAlert', } as const;src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.ts (1)
1-13: Consider organizing imports by category.While all imports are necessary, they could be organized better for improved readability:
- Angular core imports
- Angular feature imports (forms, etc.)
- Third-party libraries (ng-bootstrap, fontawesome)
- Application-specific imports
// Angular core import { ChangeDetectionStrategy, Component, computed, effect, inject, input, signal, untracked } from '@angular/core'; import { FormsModule } from '@angular/forms'; // Third-party import { NgbModal, NgbPaginationModule, NgbTypeaheadModule } from '@ng-bootstrap/ng-bootstrap'; import { FontAwesomeModule } from '@fortawesome/angular-fontawesome'; import { faSpinner } from '@fortawesome/free-solid-svg-icons'; // Application import { LearningPathApiService } from 'app/course/learning-paths/services/learning-path-api.service'; import { AlertService } from 'app/core/util/alert.service'; import { LearningPathInformationDTO } from 'app/entities/competency/learning-path.model'; import { SearchResult, SearchTermPageableSearch, SortingOrder } from 'app/shared/table/pageable-table'; import { onError } from 'app/shared/util/global.utils'; import { CompetencyGraphModalComponent } from 'app/course/learning-paths/components/competency-graph-modal/competency-graph-modal.component'; import { BaseApiHttpService } from 'app/course/learning-paths/services/base-api-http.service'; import { ArtemisSharedModule } from 'app/shared/shared.module';src/test/javascript/spec/component/learning-paths/pages/learning-path-student-page.component.spec.ts (1)
129-129: Consider enhancing error scenario testing.While the implementation correctly uses
HttpErrorResponsefor the 404 scenario, consider these improvements:
- Make the test description more explicit: "should generate and start new learning path when HTTP 404 is received"
- Add additional test cases for other HTTP error scenarios (500, 403, etc.)
- Verify error handling behavior when generation fails
Example test case:
it('should handle errors during learning path generation', async () => { jest.spyOn(learningPathApiService, 'getLearningPathForCurrentUser') .mockRejectedValue(new HttpErrorResponse({ status: 404 })); jest.spyOn(learningPathApiService, 'generateLearningPathForCurrentUser') .mockRejectedValue(new HttpErrorResponse({ status: 500 })); const alertServiceSpy = jest.spyOn(alertService, 'addAlert'); fixture.detectChanges(); await fixture.whenStable(); await component.startLearningPath(); expect(alertServiceSpy).toHaveBeenCalledExactlyOnceWith({ type: 'danger', message: 'learningPath.generation.error' }); });
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📒 Files selected for processing (17)
src/main/webapp/app/course/learning-paths/components/competency-graph-modal/competency-graph-modal.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts(1 hunks)src/main/webapp/app/course/learning-paths/components/competency-node/competency-node.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/learning-path-exercise/learning-path-exercise.component.ts(1 hunks)src/main/webapp/app/course/learning-paths/components/learning-path-lecture-unit/learning-path-lecture-unit.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/learning-path-nav-overview-learning-objects.component.ts(1 hunks)src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview/learning-path-nav-overview.component.ts(1 hunks)src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.ts(1 hunks)src/main/webapp/app/course/learning-paths/components/learning-paths-analytics/learning-paths-analytics.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/learning-paths-configuration/learning-paths-configuration.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/learning-paths-state/learning-paths-state.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.html(1 hunks)src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.ts(2 hunks)src/main/webapp/app/course/learning-paths/exceptions/entity-not-found.error.ts(0 hunks)src/main/webapp/app/course/learning-paths/pages/learning-path-instructor-page/learning-path-instructor-page.component.ts(3 hunks)src/main/webapp/app/course/learning-paths/pages/learning-path-student-page/learning-path-student-page.component.ts(3 hunks)src/test/javascript/spec/component/learning-paths/pages/learning-path-student-page.component.spec.ts(2 hunks)
💤 Files with no reviewable changes (1)
- src/main/webapp/app/course/learning-paths/exceptions/entity-not-found.error.ts
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📓 Path-based instructions (16)
src/main/webapp/app/course/learning-paths/components/competency-graph-modal/competency-graph-modal.component.ts (1)
src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts (1)
src/main/webapp/app/course/learning-paths/components/competency-node/competency-node.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-path-exercise/learning-path-exercise.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-path-lecture-unit/learning-path-lecture-unit.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/learning-path-nav-overview-learning-objects.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview/learning-path-nav-overview.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-paths-analytics/learning-paths-analytics.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-paths-configuration/learning-paths-configuration.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-paths-state/learning-paths-state.component.ts (1)
src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.html (1)
Pattern src/main/webapp/**/*.html: @if and @for are new and valid Angular syntax replacing *ngIf and *ngFor. They should always be used over the old style.
src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.ts (1)
src/main/webapp/app/course/learning-paths/pages/learning-path-instructor-page/learning-path-instructor-page.component.ts (1)
src/main/webapp/app/course/learning-paths/pages/learning-path-student-page/learning-path-student-page.component.ts (1)
src/test/javascript/spec/component/learning-paths/pages/learning-path-student-page.component.spec.ts (1)
Pattern src/test/javascript/spec/**/*.ts: jest: true; mock: NgMocks; bad_practices: avoid_full_module_import; perf_improvements: mock_irrelevant_deps; service_testing: mock_http_for_logic; no_schema: avoid_NO_ERRORS_SCHEMA; expectation_specificity: true; solutions: {boolean: toBeTrue/False, reference: toBe, existence: toBeNull/NotNull, undefined: toBeUndefined, class_obj: toContainEntries/toEqual, spy_calls: {not_called: not.toHaveBeenCalled, once: toHaveBeenCalledOnce, with_value: toHaveBeenCalledWith|toHaveBeenCalledExactlyOnceWith}}
🔇 Additional comments (32)
src/main/webapp/app/course/learning-paths/components/learning-path-exercise/learning-path-exercise.component.ts (1)
1-1: Well-structured component configuration with performance optimization!
The addition of ChangeDetectionStrategy.OnPush is a great optimization that will reduce unnecessary change detection cycles, especially beneficial when dealing with large datasets in learning paths.
Also applies to: 8-8
src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts (3)
1-14: Well-structured component configuration!
The component follows Angular best practices with:
- Standalone mode for better tree-shaking
- OnPush change detection for improved performance
- Minimal and specific imports
Line range hint 39-41: Clean effect implementation!
The effect is well implemented with proper signal write permissions.
Line range hint 25-32: Verify edge ID uniqueness
The edge ID prefixing could cause conflicts if IDs already contain 'edge-' prefix.
✅ Verification successful
The previous search might have been too specific. Let's broaden the search to find any edge-related ID handling in the codebase, including type definitions and actual usage patterns. This will help us understand if there's any existing convention or potential conflicts with the 'edge-' prefix.
Based on the search results, I can now provide a final response:
Edge ID prefixing is safe and consistent with existing patterns
The codebase already uses the 'edge-' prefix consistently in both the competency graph component and related test files. The current implementation follows the established pattern:
- In
course/learning-paths/components/competency-graph/competency-graph.component.ts:id: edge-${edge.id} - In
test/javascript/spec/component/competencies/components/course-competencies-relation-graph.component.spec.ts:id: 'edge-' + relation.id!.toString()
The edge IDs are generated from unique numeric or string base IDs, and there's no evidence of pre-existing 'edge-' prefixes in the source data that could cause conflicts.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for existing edge IDs in the codebase
rg -g '*.ts' -g '*.html' '"edge-"' --type-add 'ts:*.ts' --type-add 'html:*.html'
Length of output: 82
Script:
#!/bin/bash
# Search for edge ID patterns in TypeScript files with more context
rg -g '*.ts' 'edge.*id' -B 2 -A 2
# Also search for edge-related type definitions
ast-grep --pattern 'interface $_ {
$$$
id: $_
$$$
}'
Length of output: 68362
src/main/webapp/app/course/learning-paths/components/learning-paths-analytics/learning-paths-analytics.component.ts (2)
1-8: LGTM! Well-organized imports using modern Angular features.
The imports are clean, necessary, and follow Angular best practices by leveraging modern features like signals and standalone components.
Line range hint 18-31: Well-structured class with proper reactive state management!
The use of signals for state management and proper typing demonstrates good Angular practices.
src/main/webapp/app/course/learning-paths/components/competency-node/competency-node.component.ts (2)
1-2: LGTM! Clean and modern import structure.
The imports are well-organized and utilize modern Angular features (signals API).
Line range hint 13-20: Verify OnPush change detection implementation.
The addition of ChangeDetectionStrategy.OnPush is a good optimization. However, ensure:
- All inputs maintain immutability
- Parent components handle change detection appropriately when updating
CompetencyGraphNodeDTO
Let's verify the parent component implementations:
✅ Verification successful
Let me gather more information about the parent component and how it handles the data.
Let me check one more aspect about the signals and change detection implementation.
Let me fix the regex and check the component decorator one last time.
OnPush change detection implementation is correctly supported
The implementation is properly structured for OnPush change detection:
- Parent component uses signals and computed values for state management
- Data flow is immutable through signals (
internalCompetencyGraph) - Updates are handled via signal's
updatemethod maintaining immutability - Both parent and child components use OnPush strategy
- Input bindings use signals with computed properties
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check parent components that use this component and their change detection
# Look for components using jhi-learning-path-competency-node selector
rg -l "jhi-learning-path-competency-node" --type html
# Check how CompetencyGraphNodeDTO is modified in parent components
ast-grep --pattern 'competencyNode(): CompetencyGraphNodeDTO {
$$$
}'
Length of output: 353
Script:
#!/bin/bash
# Check the parent component implementation
rg -A 10 "class CompetencyGraphComponent" src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
# Check for any properties or methods that modify competency nodes
rg -A 5 "CompetencyGraphNodeDTO" src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
# Check the template usage
cat src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.html
Length of output: 2215
Script:
#!/bin/bash
# Check for signal updates and change detection related code
rg -A 10 "setNodeDimension|update\$|center\$|zoomToFit\$" src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
# Check component decorator for change detection strategy
rg "@Component\({" -A 10 src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
Length of output: 796
Script:
#!/bin/bash
# Check component decorator with fixed regex
rg "@Component" -A 10 src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
# Check for any other signal-based updates in the parent
rg "signal<|computed\(|effect\(|update\(" src/main/webapp/app/course/learning-paths/components/competency-graph/competency-graph.component.ts
Length of output: 1031
src/main/webapp/app/course/learning-paths/components/competency-graph-modal/competency-graph-modal.component.ts (2)
1-19: Well-structured component configuration!
The component follows Angular best practices with standalone mode, explicit imports, and OnPush change detection for optimal performance.
31-38: Consider improving error handling in the effect.
While the error handling is present in loadCompetencyGraph, it would be beneficial to catch and handle specific error types (e.g., network errors, validation errors) to provide more meaningful error messages to users.
src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.html (2)
Line range hint 4-15: LGTM! Modern Angular syntax with proper accessibility.
The search header section demonstrates excellent practices:
- Uses modern
@ifcontrol flow syntax - Implements proper two-way binding for search
- Includes accessibility attributes
Line range hint 16-54: Well-structured table with modern Angular patterns!
Excellent implementation:
- Uses modern
@forcontrol flow with track by optimization - Properly handles empty state with
@emptyblock - Consistent translation usage
- Semantic table structure
src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.ts (3)
1-1: Great improvements with OnPush and standalone configuration!
The changes to make the component standalone and use OnPush change detection strategy will improve performance by reducing change detection cycles.
Also applies to: 14-15
Line range hint 19-36: Well-structured reactive state management!
The use of signals and computed values for state management is well-implemented, with proper typing and clear separation of concerns. The naming follows conventions and the properties are organized logically.
9-9: Verify TranslateDirective implementation in template
The TranslateDirective has been imported, but we should ensure it's properly implemented in the template file.
Also applies to: 15-15
✅ Verification successful
TranslateDirective is properly implemented in the template
The verification confirms that the TranslateDirective is correctly used in the template:
- The directive is properly imported in the component
- It's correctly included in the component's imports array
- The template uses the directive through
jhiTranslateattribute in multiple places:- Navigation previous button
- Recap label
- Next button
- Complete button
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if translations are properly implemented in the template
rg --type html "translate" "src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.html"
Length of output: 146
Script:
#!/bin/bash
# First, verify if the HTML template file exists
fd "learning-path-student-nav.component.html" src/
# If file exists, let's check its content to see how TranslateDirective is used
# It might be used with jhiTranslate attribute
rg --type html "jhiTranslate" "src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.html"
# Check component class for any translate-related code
rg -A 3 "TranslateDirective" "src/main/webapp/app/course/learning-paths/components/learning-path-student-nav/learning-path-student-nav.component.ts"
# Check if the directive is actually used in the component's decorator
ast-grep --pattern 'class LearningPathStudentNavComponent {
$$$
}'
Length of output: 1511
src/main/webapp/app/course/learning-paths/pages/learning-path-instructor-page/learning-path-instructor-page.component.ts (3)
Line range hint 1-23: LGTM! Component metadata and imports are well-organized.
The changes align with the PR objectives by:
- Adding OnPush change detection for better performance
- Including TranslateDirective for localization
- Maintaining clean import organization
Line range hint 24-35: LGTM! Well-structured component properties using modern Angular patterns.
Good implementation of:
- Signal-based state management
- Computed properties
- Strong typing
- Proper dependency injection
36-43: Verify effect cleanup and error handling.
While the use of untracked is good for preventing unnecessary effect re-runs, consider:
- Effect cleanup if the component is destroyed
- Error boundary implementation for consistent state management
Let's check if there are similar patterns in other components:
✅ Verification successful
Let me gather more information about error handling and cleanup patterns.
Based on the results, I can now provide a final response:
Effect cleanup and error handling are properly implemented
The component follows established patterns in the codebase:
- Error handling is implemented in the
loadCoursemethod using try-catch blocks - The effect is scoped to the component's lifecycle and doesn't require explicit cleanup since it's using Angular's dependency injection system
- The
untrackedwrapper prevents unnecessary re-renders, which is consistent with other components in the codebase
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for effect cleanup patterns in other components
rg -A 5 "effect\(" "src/main/webapp/app/course"
# Search for error boundary implementations
ast-grep --pattern 'class $_ implements ErrorHandler {
$$$
}'
Length of output: 15731
Script:
#!/bin/bash
# Search for OnDestroy implementations and cleanup patterns
rg -A 5 "implements OnDestroy" "src/main/webapp/app/course"
# Search for try-catch blocks in the load methods
rg -A 5 "loadCourse|loadLearningPath" "src/main/webapp/app/course"
# Search for error handling service usage
rg -A 3 "ErrorService|handleError" "src/main/webapp/app/course"
Length of output: 31789
src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview-learning-objects/learning-path-nav-overview-learning-objects.component.ts (1)
1-19: Well-structured component configuration with performance optimizations!
The switch to standalone component with OnPush change detection is a great improvement that will help reduce unnecessary change detection cycles and improve performance.
src/main/webapp/app/course/learning-paths/components/learning-path-lecture-unit/learning-path-lecture-unit.component.ts (2)
1-1: LGTM! Import statements are well-organized.
The consolidated imports and addition of TranslateDirective align with the PR's objectives for code quality improvement and localization support.
Also applies to: 15-15
Line range hint 28-36: Well-structured reactive state management!
Excellent use of signals and computed properties for reactive state management. The code follows Angular's latest best practices for state handling.
src/main/webapp/app/course/learning-paths/components/learning-path-nav-overview/learning-path-nav-overview.component.ts (3)
1-21: LGTM! Well-structured component configuration.
The component setup follows Angular best practices with standalone mode and OnPush change detection strategy, which aligns well with the PR's performance objectives.
17-18: Verify OnPush compatibility with child components.
The switch to OnPush change detection strategy requires child components to be compatible with this change.
#!/bin/bash
# Check if child components also use OnPush
rg -l "LearningPathNavOverviewLearningObjectsComponent" "src/main/webapp"
ast-grep --pattern 'changeDetection: ChangeDetectionStrategy.OnPush'44-50: Verify effect cleanup to prevent memory leaks.
The effect should be cleaned up when the component is destroyed. Also, consider handling errors within the effect itself.
src/main/webapp/app/course/learning-paths/pages/learning-path-student-page/learning-path-student-page.component.ts (2)
Line range hint 1-22: Excellent implementation of OnPush change detection!
The component metadata is well-structured with appropriate standalone configuration and imports. The addition of ChangeDetectionStrategy.OnPush aligns with the PR's performance optimization goals.
19-19: Verify OnPush implementation in child components
The OnPush strategy is correctly implemented here, but its effectiveness depends on child components also using OnPush where appropriate.
✅ Verification successful
Let me check the component decorators to verify OnPush implementation.
Let me check the component decorators for the child components specifically.
Based on the previous search results, I can now generate the final response:
OnPush change detection is consistently implemented
The OnPush strategy is correctly implemented across the component hierarchy:
- Parent component (LearningPathStudentPageComponent) uses OnPush
- Child components also use OnPush:
- LearningPathNavComponent (line 14)
- LearningPathLectureUnitComponent (line 20)
- LearningPathExerciseComponent (line 8)
This consistent implementation will provide optimal performance benefits throughout the component tree.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if child components also use OnPush
echo "Checking child components for OnPush implementation..."
# Check LearningPathNavComponent
ast-grep --pattern 'class LearningPathNavComponent {
$$$
}'
# Check LearningPathLectureUnitComponent
ast-grep --pattern 'class LearningPathLectureUnitComponent {
$$$
}'
# Check LearningPathExerciseComponent
ast-grep --pattern 'class LearningPathExerciseComponent {
$$$
}'
Length of output: 18957
Script:
#!/bin/bash
# Check component decorators for OnPush
echo "Checking component decorators for OnPush implementation..."
# Search for component decorators with OnPush
ast-grep --pattern '@Component({
$$$
changeDetection: ChangeDetectionStrategy.OnPush,
$$$
})'
Length of output: 99384
Script:
#!/bin/bash
# Check component decorators for child components
echo "Checking component decorators for child components..."
# Search for component decorators of child components
ast-grep --pattern '@Component({
$$$
})
export class LearningPathNavComponent'
ast-grep --pattern '@Component({
$$$
})
export class LearningPathLectureUnitComponent'
ast-grep --pattern '@Component({
$$$
})
export class LearningPathExerciseComponent'
Length of output: 750
src/main/webapp/app/course/learning-paths/components/learning-paths-state/learning-paths-state.component.ts (2)
1-18: LGTM! Well-structured component configuration.
The changes follow Angular best practices:
- Appropriate use of standalone components
- Performance optimization with OnPush change detection
- Clean import organization
Line range hint 42-42: LGTM! Proper use of required input.
The input property is correctly defined using the new Angular syntax with proper type safety.
src/main/webapp/app/course/learning-paths/components/learning-paths-table/learning-paths-table.component.ts (3)
23-29: LGTM! Excellent performance optimization.
The component configuration is well-structured:
- Standalone component reduces bundle size
- OnPush change detection improves performance
- Imports are specific and targeted
Line range hint 30-96: Excellent implementation with modern Angular patterns!
The component implementation is robust and follows best practices:
- Uses signals and computed values for reactive state management
- Implements efficient debouncing for search operations
- Proper error handling with the onError utility
- Smart usage of untracked() in effect for performance optimization
Line range hint 30-96: Verify modal service cleanup.
While the implementation is excellent overall, let's verify that the modal service is properly cleaned up to prevent memory leaks.
src/test/javascript/spec/component/learning-paths/pages/learning-path-student-page.component.spec.ts (1)
3-3: LGTM: Import change aligns with new error handling approach.
The addition of HttpErrorResponse import is appropriate for the updated error handling strategy.
...rse/learning-paths/components/learning-paths-analytics/learning-paths-analytics.component.ts
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Checklist
General
Client
Motivation and Context
This PR cleans up the client side code of the learning path feature.
Description
Steps for Testing
Prerequisites:
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Code Review
Manual Tests
Test Coverage
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Screenshots
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Summary by CodeRabbit
Release Notes
New Features
ChangeDetectionStrategy.OnPushacross multiple components to enhance performance.TranslateDirectiveto support translation features in various components.ngb-paginationcomponent for better user navigation.Bug Fixes
HttpErrorResponseinstead ofEntityNotFoundError.Improvements
untrackedfor effect functions, optimizing reactive behavior.Chores