def get_one_by_id(cls, collection_name, id):
result = Database.find_one(collection=collection_name,
query={'_id': id})
return cls(**result).to_json()
def find_one(cls, collection_name, query):
result = Database.find_one(collection=collection_name, query=query)
if result:
return cls(**result).to_json()
return None
def get_role(user_id):
role = Database.find_one(ROLE_COLLECTION, {"user_id": user_id})
if role:
return Role(**role)
return None
