1. crud/favorite.py

# 取消收藏
async def remove_news_favorite(
        db: AsyncSession,
        user_id: int,
        news_id: int
):
    stmt = delete(Favorite).where(
        Favorite.user_id == user_id,
        Favorite.news_id == news_id
    )
    result = await db.execute(stmt)

    await db.commit()
    return result.rowcount > 0

2. routers/favorite.py

# 取消收藏
@router.delete("/remove")
async def remove_favorite(
        news_id: int = Query(..., alias="newsId"),
        user: User = Depends(get_current_user),
        db: AsyncSession = Depends(get_db)
):
    result = await favorite.remove_news_favorite(db, user.id, news_id)

    if not result:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="收藏记录不存在"
        )

    return success_response(message="删除收藏成功")