docs: def update_dimension(dimension,**kwargs):
      """
          Update a dimension in the DB.
          Raises and exception if the dimension does not exist.
          The key is ALWAYS the name and the name itself is not modificable
      """
      db_dimension = None
      dimension = JSONObject(dimension)
      try:
          db_dimension = db.DBSession.query(Dimension).filter(Dimension.id==dimension.id).filter().one()
  
          if "description" in dimension and dimension["description"] is not None:
              db_dimension.description = dimension["description"]
          if "project_id" in dimension and dimension["project_id"] is not None and dimension["project_id"] != "" and dimension["project_id"].isdigit():
              db_dimension.project_id = dimension["project_id"]
      except NoResultFound:
          raise ResourceNotFoundError("Dimension (ID=%s) does not exist"%(dimension.id))
  
  
      db.DBSession.flush()
      return JSONObject(db_dimension)