Как вы реализуете сериализатор для модели с полями Many-to-Many и динамическими свойствами в Django REST Framework?
Для реализации настраиваемой сериализации в Django REST Framework требуется:
1. Создание сериализатора для модели: Используйте serializers.ModelSerializer и определите сериализаторы для всех связанных моделей с Many-to-Many отношениями.
2. Динамические поля: Добавьте SerializerMethodField для обработки свойств, которые требуют динамического вычисления, и определите соответствующий метод.
class BookSerializer(serializers.ModelSerializer): authors = AuthorSerializer(many=True, read_only=True) custom_field = serializers.SerializerMethodField()
class Meta: model = Book fields = ('title', 'authors', 'custom_field')
Как вы реализуете сериализатор для модели с полями Many-to-Many и динамическими свойствами в Django REST Framework?
Для реализации настраиваемой сериализации в Django REST Framework требуется:
1. Создание сериализатора для модели: Используйте serializers.ModelSerializer и определите сериализаторы для всех связанных моделей с Many-to-Many отношениями.
2. Динамические поля: Добавьте SerializerMethodField для обработки свойств, которые требуют динамического вычисления, и определите соответствующий метод.
class BookSerializer(serializers.ModelSerializer): authors = AuthorSerializer(many=True, read_only=True) custom_field = serializers.SerializerMethodField()
class Meta: model = Book fields = ('title', 'authors', 'custom_field')
Pinterest (PINS) closed at $71.75 in the latest trading session, marking a -0.18% move from the prior day. This change lagged the S&P 500's daily gain of 0.1%. Meanwhile, the Dow gained 0.9%, and the Nasdaq, a tech-heavy index, lost 0.59%.
Heading into today, shares of the digital pinboard and shopping tool company had lost 17.41% over the past month, lagging the Computer and Technology sector's loss of 5.38% and the S&P 500's gain of 0.71% in that time.
Investors will be hoping for strength from PINS as it approaches its next earnings release. The company is expected to report EPS of $0.07, up 170% from the prior-year quarter. Our most recent consensus estimate is calling for quarterly revenue of $467.87 million, up 72.05% from the year-ago period.
Telegram Gives Up On Crypto Blockchain Project
Durov said on his Telegram channel today that the two and a half year blockchain and crypto project has been put to sleep. Ironically, after leaving Russia because the government wanted his encryption keys to his social media firm, Durov’s cryptocurrency idea lost steam because of a U.S. court. “The technology we created allowed for an open, free, decentralized exchange of value and ideas. TON had the potential to revolutionize how people store and transfer funds and information,” he wrote on his channel. “Unfortunately, a U.S. court stopped TON from happening.”
Библиотека собеса по Python | вопросы с собеседований from us
