52 lines
2.3 KiB
Python
52 lines
2.3 KiB
Python
from __future__ import annotations
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from datetime import datetime
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from decimal import Decimal
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from sqlalchemy import (
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String,
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Integer,
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DateTime,
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ForeignKey,
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UniqueConstraint,
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Boolean,
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Numeric,
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)
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from sqlalchemy.orm import Mapped, mapped_column
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from adapters.db.session import Base
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class PriceList(Base):
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__tablename__ = "price_lists"
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__table_args__ = (
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UniqueConstraint("business_id", "name", name="uq_price_lists_business_name"),
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)
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id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
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business_id: Mapped[int] = mapped_column(Integer, ForeignKey("businesses.id", ondelete="CASCADE"), nullable=False, index=True)
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name: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
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is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
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updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
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class PriceItem(Base):
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__tablename__ = "price_items"
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__table_args__ = (
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UniqueConstraint("price_list_id", "product_id", "unit_id", "tier_name", "min_qty", "currency_id", name="uq_price_items_unique_tier_currency"),
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)
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id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
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price_list_id: Mapped[int] = mapped_column(Integer, ForeignKey("price_lists.id", ondelete="CASCADE"), nullable=False, index=True)
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product_id: Mapped[int] = mapped_column(Integer, ForeignKey("products.id", ondelete="CASCADE"), nullable=False, index=True)
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unit_id: Mapped[int | None] = mapped_column(Integer, nullable=True, index=True)
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currency_id: Mapped[int] = mapped_column(Integer, ForeignKey("currencies.id", ondelete="RESTRICT"), nullable=False, index=True)
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tier_name: Mapped[str] = mapped_column(String(64), nullable=False, comment="نام پله قیمت (تکی/عمده/همکار/...)" )
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min_qty: Mapped[Decimal] = mapped_column(Numeric(18, 3), nullable=False, default=0)
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price: Mapped[Decimal] = mapped_column(Numeric(18, 2), nullable=False)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
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updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
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