套餐售卖状态修改

/**
 * 套餐的启售、停售、批量修改售卖状态
 * @return
 */
@PostMapping("/status/{status}")
public R<String> statusChange(@PathVariable int status, @RequestParam List<Long>ids){

    List<Setmeal> setmeals = setmealService.listByIds(ids);
    //若status=1套餐要起售，则先查询该套餐包含的所有菜品的状态是否都为起售
    if(status==1){
        LambdaQueryWrapper<SetmealDish> queryWrapper = new LambdaQueryWrapper<>();
        for(Setmeal setmeal : setmeals){
            //查询套餐中包含的菜品setmealDish
            queryWrapper.eq(SetmealDish::getSetmealId, setmeal.getId());
            List<SetmealDish> setmealDishes = setmealDishService.list(queryWrapper);
            //通过setmealDish中的dishId查询该菜品的status=0停售，status=1启售
            for(SetmealDish setmealDish : setmealDishes){
                Dish dish = dishService.getById(setmealDish.getDishId());
                //dish.status=0表示该菜品处于停售，因此包含该菜品的套餐setmeal无法更改售卖状态
                if(dish.getStatus()==0){
                    return R.error("套餐状态修改失败，该套餐中存在餐品为停售状态");
                }
            }
        }
    }

    for(Setmeal setmeal : setmeals){
        setmeal.setStatus(status);
    }

    setmealService.updateBatchById(setmeals);
    return R.success("状体修改成功");
}