reduce db abstraction
What does this MR do?
It removes several layers in the Db abstraction.
How confident are you it won't break things if deployed?
Quite. At least if I understand the architecture correctly and there are no hidden access to those classes.
- added a test, or explain why one is not needed/possible... (only refactor)
- no unrelated changes
- asked someone for a code review
- joined #foodsharing-beta channel at https://slackin.yunity.org
- added an entry to CHANGELOG.md (description, merge request link, username(s))