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：
以下展示部分工程代码，领域类代码如下，可以感受一下使用审计字段设计领域类后自动增加的字段：
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！
