Adaptive learning: Add knowledge area management

[rstief]

Checklist

General

• I tested all changes and their related features with all corresponding user types on a test server.
• Language: I followed the guidelines for inclusive, diversity-sensitive, and appreciative language.
• I chose a title conforming to the naming conventions for pull requests.

Server

• Important: I implemented the changes with a very good performance and prevented too many (unnecessary) database calls.
• I strictly followed the server coding and design guidelines.
• I added multiple integration tests (Spring) related to the features (with a high test coverage).
• I added pre-authorization annotations according to the guidelines and checked the course groups for all new REST Calls (security).
• I documented the Java code using JavaDoc style.

Client

• Important: I implemented the changes with a very good performance, prevented too many (unnecessary) REST calls and made sure the UI is responsive, even with large data.
• I strictly followed the client coding and design guidelines.
• Following the theming guidelines, I specified colors only in the theming variable files and checked that the changes look consistent in both the light and the dark theme.
• I added multiple integration tests (Jest) related to the features (with a high test coverage), while following the test guidelines.
• I added authorities to all new routes and checked the course groups for displaying navigation elements (links, buttons).
• I documented the TypeScript code using JSDoc style.
• I added multiple screenshots/screencasts of my UI changes.
• I translated all newly inserted strings into English and German.

Motivation and Context

Adds the functional requirement 2.3 described in #8001

Description

Adds the possbility to manage knowledge areas to the standardized competency management. this includes the following actions:

• Creating
• Deleting
• Updating
• Moving to other parent knowledge areas

Steps for Testing

Prerequisites:

• 1 Admin Account!

1. Go to Server Administration -> Feature Toggles and activate Standardized Competencies
2. Go to Server Administration -> Standardized Competencies
3. Test that the filtering by title works, only competencies containing the filter string should show
4. Test that the filtering by knowledge area works, only competencies in that area and direct ancestors should show
5. Test inserting knowledge areas
6. Test deleting knowledge areas (with children and competencies)
7. Test updating a knowledge areas:
8. general updates
9. moving to another knowledge area/removing the parent
10. test that moving a knowledge area to a knowledge area not in the filter makes it "dissapear"

Testserver States

Note

These badges show the state of the test servers.
Green = Currently available, Red = Currently locked

Review Progress

Performance Review

• I (as a reviewer) confirm that the client changes (in particular related to REST calls and UI responsiveness) are implemented with a very good performance
• I (as a reviewer) confirm that the server changes (in particular related to database calls) are implemented with a very good performance

Code Review

• Code Review 1
• Code Review 2

Manual Tests

• Test 1
• Test 2

Test Coverage

Client

Class/File	Line Coverage	Confirmation (assert/expect)
admin-standardized-competency.service.ts	100%	✅
knowledge-area-detail.component.ts	98.41%	✅
standardized-competency-detail.component.ts	100%	✅
standardized-competency-management.component.ts	88.61%	✅
standardized-competency.model.ts	100%	✅

Server

Class/File	Line Coverage	Confirmation (assert/expect)
KnowledgeArea.java	100%	✅
KnowledgeAreaRepository.java	100%	✅
KnowledgeAreaService.java	97%	✅
StandardizedCompetencyService.java	95%	✅
AdminStandardizedCompetencyResource.java	96%	✅
KnowledgeAreaDTO.java	100%	✅
StandardizedCompetencyDTO.java	100%	✅

Screenshots

Summary by CodeRabbit

• New Features
  • Enhanced functionality for creating, updating, and deleting knowledge areas and competencies in the admin interface.
  • Introduced HTML templates and components for streamlined management of knowledge areas and competencies.
• Refactor
  • Improved management of knowledge areas and competencies in the admin panel, enhancing tree structures and editing capabilities.

[coderabbitai]

Actionable comments posted: 1

[julian-christl]

I'm happy \o/

Code looks good!

[JohannesWt]

Code still looks good :)

[coolchock]

re-approve

[MaximilianAnzinger]

Maintainer approved