Обновление приложения

backend/app/models/budget.py

@@ -0,0 +1,25 @@
+from datetime import datetime, date
+from decimal import Decimal
+from sqlalchemy import String, Boolean, Numeric, ForeignKey, Date, DateTime, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from app.database import Base
+
+
+class Budget(Base):
+    __tablename__ = "budgets"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id"), nullable=False, index=True)
+    category_id: Mapped[int] = mapped_column(ForeignKey("categories.id"), nullable=False)
+    name: Mapped[str] = mapped_column(String(200), nullable=False)
+    amount: Mapped[Decimal] = mapped_column(Numeric(20, 2), nullable=False)
+    currency_id: Mapped[int] = mapped_column(ForeignKey("currencies.id"), nullable=False)
+    period_type: Mapped[str] = mapped_column(String(20), nullable=False)   # monthly | weekly | yearly | custom
+    start_date: Mapped[date] = mapped_column(Date, nullable=False)
+    end_date: Mapped[date | None] = mapped_column(Date)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    user: Mapped["User"] = relationship("User", back_populates="budgets")
+    category: Mapped["Category"] = relationship("Category", back_populates="budgets")
+    currency: Mapped["Currency"] = relationship("Currency", back_populates="budgets")