update to python fastpi

Backend/src/models/favorite.py

@@ -0,0 +1,19 @@
+from sqlalchemy import Column, Integer, ForeignKey, DateTime
+from sqlalchemy.orm import relationship
+from datetime import datetime
+from ..config.database import Base
+
+
+class Favorite(Base):
+    __tablename__ = "favorites"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    room_id = Column(Integer, ForeignKey("rooms.id"), nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
+
+    # Relationships
+    user = relationship("User", back_populates="favorites")
+    room = relationship("Room", back_populates="favorites")
+