Iris: Preserve settings on course and exercise update

[Hialus]

Note

Only deploy on TS9

Checklist

General

• I tested all changes and their related features with all corresponding user types on a test server.
• This is a small issue that I tested locally and was confirmed by another developer 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 followed the coding and design guidelines.
• I added multiple integration tests (Spring) related to the features (with a high test coverage).
• I documented the Java code using JavaDoc style.

Changes affecting Programming Exercises

• I tested all changes and their related features with all corresponding user types on Test Server 1 (Atlassian Suite).
• I tested all changes and their related features with all corresponding user types on Test Server 2 (Jenkins and Gitlab).

Motivation and Context

Currently there is a bug, where the Iris settings are deleted for a course/programming exercise if they are updated.

Description

This PR fixes this behaviour by copying the Iris Settings into the new object.

Steps for Testing

Prerequisites:

• 1 Instructor
• 1 Programming Exercise with Iris enabled (e.g. https://artemis-test9.artemis.cit.tum.de/courses/6/exercises/23)

1. Log in to Artemis
2. Go to the exercise instructor view
3. Edit the exercise -> Iris still enabled
4. Edit the course -> Iris still enabled

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

Server

Class/File	Line Coverage	Confirmation (assert/expect)
IrisSettingsService.java	88%	✅
ProgrammingExerciseService.java	93%	✅
CourseResource.java	94%	✅

[JohannesStoehr]

Code looks good to me

[MaximilianAnzinger]

Left one suggestion. Other than that code LGTM 👍