feat: additional expenses

models/expense.py

@@ -0,0 +1,24 @@
+from datetime import datetime, date
+from typing import TYPE_CHECKING
+
+from sqlalchemy import ForeignKey
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from models import BaseModel
+
+if TYPE_CHECKING:
+    from models import User
+
+
+class Expense(BaseModel):
+    __tablename__ = 'expenses'
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    created_at: Mapped[datetime] = mapped_column(nullable=False)
+    spent_date: Mapped[date] = mapped_column(nullable=False)
+    name: Mapped[str] = mapped_column()
+    comment: Mapped[str] = mapped_column()
+    amount: Mapped[float] = mapped_column()
+
+    created_by_user_id: Mapped[int] = mapped_column(ForeignKey("users.id"), nullable=False)
+    created_by_user: Mapped["User"] = relationship(foreign_keys=[created_by_user_id])