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Group15_all_project/week8 database1
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# 定义用户表和收藏商品表 | |
class User(Base): | |
__tablename__ = 'users' | |
user_id = Column(Integer, primary_key=True, autoincrement=True) | |
username = Column(String, nullable=False, unique=True) | |
password = Column(String, nullable=False) | |
favorites = relationship("UserFavorite", back_populates="user") | |
browsing_history = relationship("UserBrowsingHistory", back_populates="user") | |
class UserFavorite(Base): | |
__tablename__ = 'user_favorites' | |
favorite_id = Column(Integer, primary_key=True, autoincrement=True) | |
user_id = Column(Integer, ForeignKey('users.user_id'), nullable=False) | |
product_id = Column(Integer, nullable=False) | |
user = relationship("User", back_populates="favorites") | |
class UserBrowsingHistory(Base): | |
__tablename__ = 'user_browsing_history' | |
history_id = Column(Integer, primary_key=True, autoincrement=True) | |
user_id = Column(Integer, ForeignKey('users.user_id'), nullable=False) | |
product_id = Column(Integer, nullable=False) | |
browse_time = Column(DateTime, default=datetime.utcnow) | |
user = relationship("User", back_populates="browsing_history") | |
# 在用户数据库中创建表 | |
Base.metadata.create_all(engine_user) | |
# 添加用户 | |
def add_user(username, password): | |
new_user = User(username=username, password=password) | |
session_user.add(new_user) | |
session_user.commit() | |
# 添加用户收藏的商品 | |
def add_favorite(user_id, product_id): | |
new_favorite = UserFavorite(user_id=user_id, product_id=product_id) | |
session_user.add(new_favorite) | |
session_user.commit() | |
#在week8 database2 中有创建商品的部分 | |
# 添加新商品 | |
def add_product(name, image, description, category, store): | |
new_product = Product(product_name=name, product_image=image, product_description=description, category=category, store=store) | |
session_product.add(new_product) | |
session_product.commit() | |
# 更新商品信息 | |
def update_product(product_id, name=None, image=None, description=None, category=None, store=None): | |
product = session_product.query(Product).filter(Product.product_id == product_id).one() | |
if name: | |
product.product_name = name | |
if image: | |
product.product_image = image | |
if description: | |
product.product_description = description | |
if category: | |
product.category = category | |
if store: | |
product.store = store | |
session_product.commit() |