def remove_cell(self, cell_keys):
cells_removed = 0
redis_client = self.app.redis_client
with self.db_session() as session:
changed_lacs = set()
for k in cell_keys:
key = Cell.to_hashkey(k)
query = session.query(Cell).filter(*Cell.joinkey(key))
cells_removed += query.delete()
changed_lacs.add(CellArea.to_hashkey(key))
if changed_lacs:
session.on_post_commit(enqueue_lacs, redis_client, changed_lacs,
UPDATE_KEY['cell_lac'])
session.commit()
return cells_removed
