Feature #707

Updated by Alexander Watzinger over 4 years ago

Performance could be better. Actor update is still very slow.

Things to try:

- refactor begin and end, get all 6 dates in entity sql and set in populate at object creation
- refactor types to get them all types at once object creation (in sql select as array)
- refactor alias: compare new and old array, delete/insert according

- refactor link: take only ids and implement checker switch in settings
- delete links not single but as an array