Publish association

[BlueWaves2]

Description of changes

Please provide a short description of the change or if the change is sufficiently described in the GitHub issue, provide a link to the issue.

How has this been tested?

Please describe the test strategy you followed.

• [X] automated unit test
• [ ] automated integration test
• [ ] automated acceptance test
• [X] manual, exploratory test

Manual Test was performed over compiling the course-, content-, and media service. Over graphiql a course and a chapter was created. With the chapter ID a content was created. And over the Content ID created a new media entity.

Checklist before requesting a review

• [x] My code follows the coding guidelines of this project
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My code fulfills all acceptance criteria
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] The test coverage (line and branch) is reasonably high, especially on Service classes and other classes with complex logic
• [x] I have made corresponding changes to the documentation
• [x] I have added explanation of architectural decision and rationales to wiki/adr
• [x] I have updated the changes in the ticket description

Checklist for reviewer

• [ ] The code works and does not throw errors
• [ ] The code is easy to understand and there are no confusing parts
• [ ] The code follows the coding guidelines of this project
• [ ] The code change accomplishes what it is supposed to do
• [ ] I cannot think of any use case in which the code does not behave as intended
• [ ] The added and existing tests reasonably cover the code change
• [ ] I cannot think of any test cases, input or edge cases that should be tested in addition
• [ ] Description of the change is included in the documentation