1.侧栏菜单选择“Python”：
点击代码区右上角的“代码魔法棒”图标，在弹出的确认面板中点击“确认”按钮，一秒生成基于FastApi最新框架版本的项目工程。
2.在“深色模式”下预览生成的Python项目代码：
2.在“深色模式”下预览生成的Python项目代码：
`"""
订单领域类
@author 极客学院
@date 2025/03/20
"""
from typing import Optional
from datetime import datetime
from decimal import Decimal
from sqlmodel import SQLModel, Field
from sqlalchemy import Column, BigInteger, DateTime, String, Boolean, Numeric
class Order(SQLModel, table=True):
"""
订单
"""
tablename ="tbl_order"
orderId: Optional[int] = Field( default=None, sa_column=Column("id", BigInteger, primary_key=True, autoincrement=True), description="订单ID")orderNum: str = Field( sa_column=Column("order_num", String(50), nullable=False), description="订单号")amount: Decimal = Field( sa_column=Column("amount", Numeric(10, 2), nullable=False), description="订单金额")memo: str = Field( sa_column=Column("memo", String(50), nullable=False), description="订单描述")creationTime: datetime = Field( default_factory=datetime.now, sa_column=Column("creation_time", DateTime, nullable=False), description="创建时间")creatorId: int = Field( sa_column=Column("creator_id", BigInteger, nullable=False), description="创建者ID")creator: str = Field( sa_column=Column("creator", String(255), nullable=False), description="创建者")lastModificationTime: Optional[datetime] = Field( default=None, sa_column=Column("last_modification_time", DateTime, nullable=True), description="最近修改时间")lastModifierId: Optional[int] = Field( default=None, sa_column=Column("last_modifier_id", BigInteger, nullable=True), description="最近修改者ID")lastModifier: Optional[str] = Field( default=None, sa_column=Column("last_modifier", String(255), nullable=True), description="最近修改者")isDeleted: bool = Field( default=False, sa_column=Column("is_deleted", Boolean, nullable=False), description="已删除")deletionTime: Optional[datetime] = Field( default=None, sa_column=Column("deletion_time", DateTime, nullable=True), description="删除时间")deleterId: Optional[int] = Field( default=None, sa_column=Column("deleter_id", BigInteger, nullable=True), description="删除者ID")deleter: Optional[str] = Field( default=None, sa_column=Column("deleter", String(255), nullable=True), description="删除者")DTO类代码："""
新增订单的表单校验DTO
@author 极客学院
@date 2025/03/20
"""
from decimal import Decimal
import re
from pydantic import BaseModel, Field, field_validator, model_validator
from common.validation_utils import ValidationUtils
class OrderCreateDTO(BaseModel):
"""
新增订单的表单校验DTO
"""
orderNum: str = Field(
description="订单号:不能为空，最长不能超过50个字符",
examples=["4624849630"]
)
amount: Decimal = Field(
description="订单金额:不能为null，必须大于或等于0.00，必须小于或等于100.00，数字的值只允许在10位整数和2位小数范围内",
examples=["80.16"]
)
memo: str = Field(
description="订单描述:不能为空，最长不能超过50个字符",
examples=["请加急发货急用。"]
)
@model_validator(mode='before')def check_required_fields(cls, values): field_name_map = { 'orderNum': '订单号', 'amount': '订单金额', 'memo': '订单描述', } return ValidationUtils.check_required_fields(values, field_name_map)@field_validator('orderNum')def order_num_validate(cls, v): if v is None or not v.strip(): raise ValueError('订单号:不能为空') if len(v) > 50: raise ValueError('订单号:最长不能超过50个字符') return v@field_validator('amount')def amount_validate(cls, v): if v is not None and v < 0.00: raise ValueError('订单金额:必须大于或等于0.00') if v is not None and v > 100.00: raise ValueError('订单金额:必须小于或等于100.00') value_str = str(v) if not re.match(r'^\d{1,10}(\.\d{1,2})?$', value_str): raise ValueError('订单金额:数字的值只允许在10位整数和2位小数范围内') return v@field_validator('memo')def memo_validate(cls, v): if v is None or not v.strip(): raise ValueError('订单描述:不能为空') if len(v) > 50: raise ValueError('订单描述:最长不能超过50个字符') return v`
VO类代码：
`"""
订单信息实体
@author 极客学院
@date 2025/03/20
"""
from decimal import Decimal
from pydantic import BaseModel, Field
class OrderVO(BaseModel):
"""
订单信息实体
"""
orderId: int = Field(description="订单ID", examples=["1"])
orderNum: str = Field(description="订单号", examples=["4624849630"])
amount: Decimal = Field(description="订单金额", examples=["80.16"])
memo: str = Field(description="订单描述", examples=["请加急发货急用。"])`
详细操作可去官网免费体验！