def get_tag_log(tag, obj_class):
coll = TagLog.collection()
dic = coll.find_one({"tag_id": tag.obj_id(), "obj_class_name": obj_class.__name__})
return TagLog.unserialize(dic) if dic is not None else None
def save_tag_log(tag_log_obj):
coll = TagLog.collection()
id = coll.save(tag_log_obj.serialize())
return id
