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SIB/backend/app/models/user_coupon.py

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1.5 KiB
Python

"""UserCoupon model for tracking claimed coupons."""
from sqlmodel import SQLModel, Field, Relationship
from datetime import datetime
from typing import Optional, TYPE_CHECKING
from uuid import UUID, uuid4
from sqlalchemy import Column, DateTime, func, String
from enum import Enum
if TYPE_CHECKING:
from app.models.user import User
from app.models.coupon import Coupon
class UserCouponStatus(str, Enum):
CLAIMED = "claimed"
REDEEMED = "redeemed"
EXPIRED = "expired"
class UserCoupon(SQLModel, table=True):
__tablename__ = "user_coupons"
id: Optional[UUID] = Field(default_factory=uuid4, primary_key=True)
user_id: UUID = Field(foreign_key="users.id")
coupon_id: UUID = Field(foreign_key="coupons.id")
status: UserCouponStatus = Field(default=UserCouponStatus.CLAIMED)
redemption_code: str = Field(
sa_column=Column(String, unique=True, index=True)
)
claimed_at: datetime = Field(
sa_column=Column(DateTime(timezone=True), server_default=func.now())
)
redeemed_at: Optional[datetime] = Field(
sa_column=Column(DateTime(timezone=True), nullable=True)
)
# Relationships
user: "User" = Relationship()
coupon: "Coupon" = Relationship()
class UserCouponRead(SQLModel):
id: UUID
user_id: UUID
coupon_id: UUID
status: UserCouponStatus
redemption_code: str
claimed_at: datetime
redeemed_at: Optional[datetime]
coupon: Optional["Coupon"] = None