Add shop

backend/app/models/consumable_usage.py

@@ -0,0 +1,30 @@
+from datetime import datetime
+from sqlalchemy import DateTime, ForeignKey, Integer, JSON
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from typing import TYPE_CHECKING
+
+from app.core.database import Base
+
+if TYPE_CHECKING:
+    from app.models.user import User
+    from app.models.shop import ShopItem
+    from app.models.marathon import Marathon
+    from app.models.assignment import Assignment
+
+
+class ConsumableUsage(Base):
+    __tablename__ = "consumable_usages"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True)
+    item_id: Mapped[int] = mapped_column(ForeignKey("shop_items.id", ondelete="CASCADE"), nullable=False)
+    marathon_id: Mapped[int | None] = mapped_column(ForeignKey("marathons.id", ondelete="CASCADE"), nullable=True)
+    assignment_id: Mapped[int | None] = mapped_column(ForeignKey("assignments.id", ondelete="CASCADE"), nullable=True)
+    used_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+    effect_data: Mapped[dict | None] = mapped_column(JSON, nullable=True)
+
+    # Relationships
+    user: Mapped["User"] = relationship("User")
+    item: Mapped["ShopItem"] = relationship("ShopItem")
+    marathon: Mapped["Marathon | None"] = relationship("Marathon")
+    assignment: Mapped["Assignment | None"] = relationship("Assignment")