费用管理内容优化-初步

backend/app/models/special_expense.py

@@ -0,0 +1,30 @@
+import uuid
+from datetime import date, datetime
+from decimal import Decimal
+
+from sqlalchemy import Boolean, Date, DateTime, ForeignKey, Numeric, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base_class import Base
+
+
+class SpecialExpense(Base):
+    __tablename__ = "special_expenses"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("studies.id"), index=True, nullable=False)
+    center_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("sites.id"), index=True, nullable=True)
+    category: Mapped[str] = mapped_column(String(50), nullable=False)
+    amount: Mapped[Decimal] = mapped_column(Numeric(12, 2), nullable=False)
+    happen_date: Mapped[date | None] = mapped_column(Date, nullable=True)
+    description: Mapped[str | None] = mapped_column(Text, nullable=True)
+    is_paid: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="false")
+    paid_date: Mapped[date | None] = mapped_column(Date, nullable=True)
+    is_verified: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="false")
+    verified_date: Mapped[date | None] = mapped_column(Date, nullable=True)
+    created_by: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
+    )