Adapt the Community-Statistik+KPI-Uebersicht.ipynb to the new database schema #41
Description
We've been simplifying the database in the last time.
See the following issues with the corresponding PRs
- Merge
entity_revision_fieldintoentity_revisiondb-migrations#348 -> feat: Merge entity_revision_field into entity_revision db-migrations#349 - Simplification of the
taxonomy_tables db-migrations#346 -> feat: Simplify taxonomy tables db-migrations#375 - Major simplification of
event_*tables db-migrations#344 -> feat: Simplify event tables db-migrations#374
They will be deployed soon in serlo.org. So we need to adapt the Community-Statistik+KPI-Uebersicht.ipynb so that it continues to work after these changes.