classOu(Base):"""机构(部门)信息-表模型"""__tablename__="t_acl_ou"id= Column(Integer, primary_key=True, comment="主键", autoincrement=True) pid= Column(Integer, ForeignKey("t_acl_ou.id"), comment="父级机构ID") ****其他信息
id = Column(Integer, primary_key=True, autoincrement=True) 那么这里Column 用到3个参数 Integer 设置为整形 primary_key 设置主键 autoincrement 自增 给User 表加一个name 用户名字段,用户名不能为空,设置nullable=False 代码语言:javascript 代码运行次数:0 运行 AI代码解释 name = Column(String(10), null...
name = Column(String(64), unique=True, nullable=False) def __str__(self): return self.name def __repr__(self): return self.name class Boy(Base): __tablename__ = 'boy' id = Column(Integer, primary_key=True, autoincrement=True) name = Column(String(64), unique=True, nullable=...
设置主键自动递增:为了实现主键的自动递增,可以使用autoincrement=True来设置主键字段的自增属性。 代码语言:python 代码运行次数:0 复制Cloud Studio 代码运行 from sqlalchemy import Column, Integer, String, Sequence from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class MyM...
id = Column(Integer, primary_key=True, autoincrement=True) username = Column(String(50), nullable=False) # 建立关联 articles = relationship("Article2") def __str__(self): return f"{self.id} {self.username}" # Base.metadata.drop_all() ...
id = Column(Integer,primary_key=True, autoincrement=True) # 主键自增 name = Column(String(32), nullable=True, index=True) # name列 非空 索引 ctime = Column(DateTime, default=datetime.datetime.now) # 这里不加括号,加上括号就相当于写死了,当不加括号每次执行都会自动加上括号执行 ...
from extends import db # 关系表,user与goods之间的关系,在数据库层面建立的关系 class User_Goods(db.Model): id = db.Column(db.Integer, primary_key=True, autoincrement=True) user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False) goods_id = db.Column(db.Integer, db....
from sqlalchemy import Column, String, Text, Integer, TIMESTAMP, FLOAT, BigInteger from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class Job(Base): __tablename__ = 'job' id = Column(Integer, primary_key=True, autoincrement=True) job_status = Column(Integer...
classCategory(Base):__tablename__="category"id:Mapped[UUID]=Column(CHAR(36),primary_key=True,default=hex_uuid)ext_id:Mapped[int]=Column(Integer,autoincrement=True,unique=True,default=None) If I create this table viaBase.metadata.create_all(engine)the AUTO_INCREMENT parameter is not included...
: utf-8fromsqlalchemyimportColumn, Integer, String,Date,Numeric,Textfromsqlalchemy.ext.declarativeimportdeclarative_base# 创建对象的基类:Base = declarative_base()classProduct(Base):# 表的名字:__tablename__ ='product'# 表的结构:PRODUCTID = Column(Integer,autoincrement=True, primary_key=True)...