130 lines
4.7 KiB
Java
130 lines
4.7 KiB
Java
package com.sky.service.impl;
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import com.github.pagehelper.Page;
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import com.github.pagehelper.PageHelper;
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import com.sky.constant.MessageConstant;
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import com.sky.constant.StatusConstant;
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import com.sky.dto.SetmealDTO;
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import com.sky.dto.SetmealPageQueryDTO;
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import com.sky.entity.Dish;
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import com.sky.entity.Setmeal;
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import com.sky.entity.SetmealDish;
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import com.sky.exception.DeletionNotAllowedException;
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import com.sky.exception.SetmealEnableFailedException;
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import com.sky.mapper.DishMapper;
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import com.sky.mapper.SetmealMapper;
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import com.sky.mapper.Setmeal_dishMapper;
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import com.sky.result.PageResult;
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import com.sky.service.SetmealService;
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import com.sky.vo.SetmealVO;
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import org.springframework.beans.BeanUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.List;
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@Service
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public class SetmealServiceImpl implements SetmealService {
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@Autowired
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private SetmealMapper setmealMapper;
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@Autowired
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private Setmeal_dishMapper setmeal_dishMapper;
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@Autowired
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private DishMapper dishMapper;
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@Override
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public void addSetmeal(SetmealDTO setmealDTO) {
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Setmeal setmeal=new Setmeal();
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BeanUtils.copyProperties(setmealDTO,setmeal);
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setmealMapper.insert(setmeal);
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List<SetmealDish> setmealDishList =setmealDTO.getSetmealDishes();
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for(SetmealDish setmealDish:setmealDishList){
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setmealDish.setSetmealId(setmeal.getId());
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setmeal_dishMapper.add(setmealDish);
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}
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}
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@Override
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public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
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PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
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List<SetmealVO> setmealVOList=setmealMapper.queryByCond(setmealPageQueryDTO);
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Page<SetmealVO> p= (Page<SetmealVO>) setmealVOList;
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PageResult pageResult=new PageResult(p.getTotal(),p.getResult());
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return pageResult;
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}
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@Override
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@Transactional
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public void deleteBatch(Long[] ids) {
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for(Long id:ids){
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Setmeal setmeal = setmealMapper.getById(id);
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if(StatusConstant.ENABLE == setmeal.getStatus()){
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//起售中的套餐不能删除
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throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
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}
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else{
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Long setmealId=id;
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setmealMapper.deleteById(id);
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setmeal_dishMapper.deleteByDishId(id);
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}
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}
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}
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@Override
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public SetmealVO getByIdWithDish(Long id) {
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Setmeal setmeal = setmealMapper.getById(id);
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List<SetmealDish> setmealDishes = setmeal_dishMapper.getBySetmealId(id);
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SetmealVO setmealVO = new SetmealVO();
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BeanUtils.copyProperties(setmeal, setmealVO);
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setmealVO.setSetmealDishes(setmealDishes);
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return setmealVO;
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}
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@Override
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public void update(SetmealDTO setmealDTO) {
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Setmeal setmeal = new Setmeal();
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BeanUtils.copyProperties(setmealDTO, setmeal);
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//1、修改套餐表，执行update
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setmealMapper.update(setmeal);
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//套餐id
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Long setmealId = setmealDTO.getId();
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//2、删除套餐和菜品的关联关系，操作setmeal_dish表，执行delete
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setmeal_dishMapper.deleteByDishId(setmealId);
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List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
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setmealDishes.forEach(setmealDish -> {
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setmealDish.setSetmealId(setmealId);
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});
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//3、重新插入套餐和菜品的关联关系，操作setmeal_dish表，执行insert
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for(SetmealDish setmealDish:setmealDishes){
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setmeal_dishMapper.add(setmealDish);
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}
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}
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@Override
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public void startOrStop(Integer status, Long id) {
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//起售套餐时，判断套餐内是否有停售菜品，有停售菜品提示"套餐内包含未启售菜品，无法启售"
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if(status == StatusConstant.ENABLE){
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//select a.* from dish a left join setmeal_dish b on a.id = b.dish_id where b.setmeal_id = ?
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List<Dish> dishList = dishMapper.getBySetmealId(id);
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if(dishList != null && dishList.size() > 0){
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dishList.forEach(dish -> {
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if(StatusConstant.DISABLE == dish.getStatus()){ //若菜品停售，则套餐起售失败！
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throw new SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);
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}
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});
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}
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}
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Setmeal setmeal = Setmeal.builder()
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.id(id)
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.status(status)
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.build();
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setmealMapper.update(setmeal);
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}
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}
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