72 lines
2.2 KiB
Python
72 lines
2.2 KiB
Python
from datetime import datetime
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from typing import Optional
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from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Enum
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from sqlalchemy.sql import func
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from pydantic import BaseModel, Field
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from .database import Base
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import enum
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class CouponStatus(str, enum.Enum):
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UNUSED = "未使用"
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USED = "已使用"
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EXPIRED = "已过期"
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# 数据库模型
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class CouponDB(Base):
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__tablename__ = "coupons"
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id = Column(Integer, primary_key=True, autoincrement=True)
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name = Column(String(100), nullable=False)
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amount = Column(Float, nullable=False)
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create_time = Column(DateTime(timezone=True), server_default=func.now())
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update_time = Column(DateTime(timezone=True), onupdate=func.now())
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class UserCouponDB(Base):
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__tablename__ = "user_coupons"
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id = Column(Integer, primary_key=True, autoincrement=True)
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user_id = Column(Integer, ForeignKey("users.userid"), index=True)
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coupon_id = Column(Integer, ForeignKey("coupons.id"), index=True)
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coupon_name = Column(String(100), nullable=False)
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coupon_amount = Column(Float, nullable=False)
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expire_time = Column(DateTime(timezone=True), nullable=False)
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status = Column(Enum(CouponStatus), default=CouponStatus.UNUSED)
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create_time = Column(DateTime(timezone=True), server_default=func.now())
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update_time = Column(DateTime(timezone=True), onupdate=func.now())
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# Pydantic 模型
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class CouponCreate(BaseModel):
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name: str = Field(..., max_length=100)
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amount: float = Field(..., gt=0)
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class CouponUpdate(BaseModel):
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name: Optional[str] = Field(None, max_length=100)
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amount: Optional[float] = Field(None, gt=0)
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class CouponInfo(BaseModel):
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id: int
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name: str
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amount: float
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create_time: datetime
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class Config:
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from_attributes = True
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class UserCouponCreate(BaseModel):
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user_id: int
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coupon_id: int
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expire_time: datetime
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count: int = Field(..., gt=0, description="发放数量")
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class UserCouponInfo(BaseModel):
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id: int
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user_id: int
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coupon_id: int
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coupon_name: str
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coupon_amount: float
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expire_time: datetime
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status: CouponStatus
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create_time: datetime
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class Config:
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from_attributes = True |