forked from hesabix/arc
38 lines
1.6 KiB
Python
Executable file
38 lines
1.6 KiB
Python
Executable file
from __future__ import annotations
|
||
|
||
from datetime import datetime
|
||
from decimal import Decimal
|
||
|
||
from sqlalchemy import Integer, DateTime, ForeignKey, Text, Numeric
|
||
from sqlalchemy.orm import Mapped, mapped_column, relationship
|
||
|
||
from adapters.db.session import Base
|
||
|
||
|
||
class BusinessCurrencyRate(Base):
|
||
"""نرخ تسعیر: ۱ واحد ارز `currency_id` (غیر پایه) معادل `rate` واحد از ارز اصلی کسبوکار است."""
|
||
|
||
__tablename__ = "business_currency_rates"
|
||
|
||
id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
|
||
business_id: Mapped[int] = mapped_column(
|
||
Integer, ForeignKey("businesses.id", ondelete="CASCADE"), nullable=False, index=True
|
||
)
|
||
currency_id: Mapped[int] = mapped_column(
|
||
Integer, ForeignKey("currencies.id", ondelete="RESTRICT"), nullable=False, index=True
|
||
)
|
||
effective_at: Mapped[datetime] = mapped_column(
|
||
DateTime(timezone=True), nullable=False, index=True, comment="زمان مؤثر نرخ (چند نرخ در یک روز با زمان متفاوت)"
|
||
)
|
||
rate: Mapped[Decimal] = mapped_column(
|
||
Numeric(24, 10), nullable=False, comment="۱ واحد ارز غیرپایه = rate × واحد پایه"
|
||
)
|
||
note: Mapped[str | None] = mapped_column(Text, nullable=True)
|
||
created_by_user_id: Mapped[int] = mapped_column(
|
||
Integer, ForeignKey("users.id", ondelete="RESTRICT"), nullable=False
|
||
)
|
||
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
|
||
updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
|
||
|
||
currency = relationship("Currency", lazy="joined")
|
||
created_by = relationship("User", foreign_keys=[created_by_user_id])
|