BC-6871 - Adapt board domain object mapping to unified persistence entity

[uidp]

Description

To make it easier to extend the board we want to adapt the mapping of board domain objects to the prior implemented board node persistence entity.

Currently when persisting a board DO we have to create an instance of specific persistence entity class. This is implemented using the visitor pattern and requires specific mapping code for each persistence entity class.

Instead we can do better by:

• using one unified persistence entity (see BC-6870)
• get or create the persistence object in the Unit of Work in the ORM
• update the properties of the persistence object

This should not be specific to the board DO. We should treat the persistence entity just as a data container.

Links to Tickets or other pull requests

BC-6871

Changes

Datasecurity

Deployment

New Repos, NPM pakages or vendor scripts

Approval for review

• DEV: If api was changed - generate-client:server was executed in vue frontend and changes were tested and put in a PR with the same branch name.
• QA: In addition to review, the code has been manually tested (if manual testing is possible)
• All points were discussed with the ticket creator, support-team or product owner. The code upholds all quality guidelines from the PR-template.

Notice: Please remove the WIP label if the PR is ready to review, otherwise nobody will review it.

[sonarcloud]

Quality Gate failed

Failed conditions
76.5% Coverage on New Code (required ≥ 80%)
56 Uncovered Lines on New Code (required ≤ 0)

See analysis details on SonarCloud

[virgilchiriac]

this branch and PR is old (used as backup)

see the new one here: #5030