Question

当我尝试向存储库中添加某些内容时，出现“输入用尽”错误？为什么会这样呢？泡菜文件现在是空的吗？这是我第一次使用泡菜（在uni上做作业）。

class PickleRepo(Repo):

    def __init__(self, filename, read_entity, write_entity):
        super().__init__()
        self.__filename = filename
        self.__read_entity = read_entity
        self.__write_entity = write_entity

    def _read_all_from_file(self):
        self._items_dictionary = {}
        with open(self.__filename, 'rb') as file:
            lines = pickle.load(file)
            for line in lines:
                line = line.strip()
                if line != "":
                    entity = self.__read_entity(line)
                    self._items_dictionary[entity.id] = entity

    def _write_all_to_file(self):
        with open(self.__filename, 'wb') as file:
            for entity in self._items_dictionary.values():
                line = self.__write_entity(entity)
                file.write(line + "\n")

    def add_item(self, new_item):
        self._read_all_from_file()
        super().add_item(new_item)
        self._write_all_to_file()

    def search_item(self, attribute, search_value):
        self._read_all_from_file()
        return super().search_item(attribute, search_value)

    def update_item(self, id, attribute, new_value):
        self._read_all_from_file()
        super().update_item(id, attribute, new_value)
        self._write_all_to_file()

    def remove_item(self, id):
        self._read_all_from_file()
        object = super().remove_item(id)
        self._write_all_to_file()
        return object

这在用户界面中称为：

def __add_new_client(self, command):
    clientId = command[0]
    name = command[1]
    try:
        FunctionsManager.add_undo_operation(self.__client_service, UndoHandler.return_movie_entry,
                                            int(clientId))
        operation = partial(self.__add_new_client,command)
        FunctionsManager.add_redo_operation(operation)
        self.__client_service.add_new_client(int(clientId), name)
    except ValueError:
        print('Client ID must be an integer!')

然后它就在这里： def add_new_client（self，clientId，name）： new_client =客户端（clientId，名称） self .__ validate_clients.negative_integer_id（clientId） self._repository.add_item（new_client）

当我尝试添加到存储库时出现此错误。为什么？

0 个答案: