菜品批量删除

sky-server/src/main/java/com/sky/controller/admin/DishController.java

@@ -1,17 +1,17 @@
 package com.sky.controller.admin;
 
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
+import com.sky.result.PageResult;
 import com.sky.result.Result;
 import com.sky.service.DishService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
+import java.util.List;
 
 @RestController
 @RequestMapping("/admin/dish")
@@ -34,4 +34,31 @@ public class DishController {
         dishService.saveWithFlavor(dishDTO);
         return Result.success();
     }
+
+    /**
+     * 菜品分页查询
+     *
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return Result<PageResult>
+     */
+    @ApiOperation("菜品分页查询")
+    @GetMapping("/page")
+    public Result<PageResult> pageResultResult(DishPageQueryDTO dishPageQueryDTO) {
+        log.info("菜品分页查询:{}", dishPageQueryDTO);
+        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
+        return Result.success(pageResult);
+    }
+
+    /**
+     * 菜品批量删除
+     * @param ids List<Long>
+     * @return Result<String>
+     */
+    @ApiOperation("菜品批量删除")
+    @DeleteMapping()
+    public Result<String> delete(@RequestParam List<Long> ids) {
+        log.info("菜品批量删除：{}", ids);
+        dishService.deleteBatch(ids);
+        return Result.success();
+    }
 }

sky-server/src/main/java/com/sky/mapper/DishFlavorMapper.java

@@ -11,4 +11,16 @@ public interface DishFlavorMapper {
      * @param flavors List<DishFlavor>
      */
     void insertBatch(List<DishFlavor> flavors);
+
+    /**
+     * 删除菜品关联的口味数据
+     * @param id Long
+     */
+    void deleteByDishId(Long id);
+
+    /**
+     * 删除菜品关联的口味数据
+     * @param dishIds List<Long>
+     */
+    void deleteByDishIds(List<Long> dishIds);
 }

sky-server/src/main/java/com/sky/mapper/DishMapper.java

@@ -1,11 +1,16 @@
 package com.sky.mapper;
 
+import com.github.pagehelper.Page;
 import com.sky.annotation.AutoFill;
+import com.sky.dto.DishPageQueryDTO;
 import com.sky.entity.Dish;
 import com.sky.enumeration.OperationType;
+import com.sky.vo.DishVO;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Select;
 
+import java.util.List;
+
 @Mapper
 public interface DishMapper {
 
@@ -24,4 +29,30 @@ public interface DishMapper {
      */
     @AutoFill(value = OperationType.INSERT)
     void insert(Dish dish);
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return Page<DishVO>
+     */
+    Page<DishVO> pageQuery(DishPageQueryDTO dishPageQueryDTO);
+
+    /**
+     * 判断当前菜品是否能被删除---是否存在起售菜品
+     * @param id Long
+     * @return Dish
+     */
+    Dish getById(Long id);
+
+    /**
+     * 删除菜品表中的菜品数据
+     * @param id Long
+     */
+    void deleteById(Long id);
+
+    /**
+     * 删除菜品表中的菜品数据
+     * @param ids List<Long>
+     */
+    void deleteByIds(List<Long> ids);
 }

sky-server/src/main/java/com/sky/mapper/SetMealDishMapper.java

@@ -0,0 +1,15 @@
+package com.sky.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+@Mapper
+public interface SetMealDishMapper {
+    /**
+     * 查询对应套餐id
+     * @param dishIds List<Long>
+     * @return List<Long>
+     */
+    List<Long> getSetMealDishIds(List<Long> dishIds);
+}

sky-server/src/main/java/com/sky/service/DishService.java

@@ -1,6 +1,10 @@
 package com.sky.service;
 
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
+import com.sky.result.PageResult;
+
+import java.util.List;
 
 public interface DishService {
     /**
@@ -9,4 +13,17 @@ public interface DishService {
      * @param dishDTO DishDTO
      */
     void saveWithFlavor(DishDTO dishDTO);
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return PageResult
+     */
+    PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO);
+
+    /**
+     * 菜品批量删除
+     * @param ids List<Long>
+     */
+    void deleteBatch(List<Long> ids);
 }

sky-server/src/main/java/com/sky/service/impl/DishServiceImpl.java

@@ -1,11 +1,20 @@
 package com.sky.service.impl;
 
+import com.github.pagehelper.Page;
+import com.github.pagehelper.PageHelper;
+import com.sky.constant.MessageConstant;
+import com.sky.constant.StatusConstant;
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
 import com.sky.entity.Dish;
 import com.sky.entity.DishFlavor;
+import com.sky.exception.DeletionNotAllowedException;
 import com.sky.mapper.DishFlavorMapper;
 import com.sky.mapper.DishMapper;
+import com.sky.mapper.SetMealDishMapper;
+import com.sky.result.PageResult;
 import com.sky.service.DishService;
+import com.sky.vo.DishVO;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
@@ -21,6 +30,8 @@ public class DishServiceImpl implements DishService {
     private DishMapper dishMapper;
     @Resource
     private DishFlavorMapper dishFlavorMapper;
+    @Resource
+    private SetMealDishMapper setMealDishMapper;
 
     /**
      * 新增菜品和口味
@@ -46,4 +57,44 @@ public class DishServiceImpl implements DishService {
             dishFlavorMapper.insertBatch(flavors);
         }
     }
+
+    /**
+     * 菜品分页查询
+     *
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return PageResult
+     */
+    @Override
+    public PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO) {
+        PageHelper.startPage(dishPageQueryDTO.getPage(), dishPageQueryDTO.getPageSize());
+        Page<DishVO> page = dishMapper.pageQuery(dishPageQueryDTO);
+        return new PageResult(page.getTotal(), page.getResult());
+    }
+
+    /**
+     * 菜品批量删除
+     *
+     * @param ids List<Long>
+     */
+    @Override
+    public void deleteBatch(List<Long> ids) {
+        // 判断当前菜品是否能被删除---是否存在起售菜品
+        for (Long id : ids) {
+            Dish dish = dishMapper.getById(id);
+            if (dish.getStatus().equals(StatusConstant.ENABLE)) {
+                throw new DeletionNotAllowedException(MessageConstant.DISH_ON_SALE);
+            }
+        }
+        // 判断当前菜品是否能够删除--是否被套餐关联
+        List<Long> setMealDishIds = setMealDishMapper.getSetMealDishIds(ids);
+        if (setMealDishIds != null && !setMealDishIds.isEmpty()) {
+            // 当前菜品被关联了
+            throw new DeletionNotAllowedException(MessageConstant.DISH_BE_RELATED_BY_SETMEAL);
+        }
+
+        // 删除菜品表中的菜品数据
+        dishMapper.deleteByIds(ids);
+        // 删除菜品关联的口味数据
+        dishFlavorMapper.deleteByDishIds(ids);
+    }
 }

sky-server/src/main/resources/mapper/DishFlavorMapper.xml

@@ -10,4 +10,21 @@
             ( #{df.dishId},#{df.name},#{df.value})
         </foreach>
     </insert>
+
+    <!-- 删除菜品关联的口味数据 -->
+    <delete id="deleteByDishId">
+        delete
+        from dish_flavor
+        where dish_id = #{dishId};
+    </delete>
+
+    <!-- 删除菜品关联的口味数据 -->
+    <delete id="deleteByDishIds">
+        delete
+        from dish_flavor
+        where dish_id in
+        <foreach collection="dishIds" open="(" close=")" item="dishId">
+            #{dishId}
+        </foreach>
+    </delete>
 </mapper>

sky-server/src/main/resources/mapper/DishMapper.xml

@@ -10,10 +10,53 @@
                 #{updateTime}, #{createUser}, #{updateUser});
     </insert>
 
+    <!-- 删除菜品表中的菜品数据 -->
+    <delete id="deleteById">
+        delete
+        from dish
+        where id = #{id}
+    </delete>
+
+    <!-- 删除菜品表中的菜品数据 -->
+    <delete id="deleteByIds">
+        delete
+        from dish
+        where id in
+        <foreach collection="ids" open="(" close=")" separator="," item="id">
+            #{id}
+        </foreach>
+    </delete>
+
     <!-- 根据分类id查询菜品数量 -->
     <select id="countByCategoryId" resultType="java.lang.Integer">
         select count(id)
         from dish
         where category_id = #{categoryId}
     </select>
+
+    <!-- 菜品分页查询 -->
+    <select id="pageQuery" resultType="com.sky.vo.DishVO">
+        select d.*, c.name as categoryName
+        from dish d
+        left OUTER join category c on d.category_id = c.id
+        <where>
+            <if test="name != null">
+                and d.name like concat("%",#{name},"%")
+            </if>
+            <if test="categoryId != null">
+                and d.category_id = #{categoryId}
+            </if>
+            <if test="status != null">
+                and d.status = #{status}
+            </if>
+        </where>
+        order by d.create_time desc
+    </select>
+
+    <!-- 判断当前菜品是否能被删除 - 是否存在起售菜品 -->
+    <select id="getById" resultType="com.sky.entity.Dish">
+        select *
+        from dish
+        where id = #{id};
+    </select>
 </mapper>

sky-server/src/main/resources/mapper/SetMealDishMapper.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
+<mapper namespace="com.sky.mapper.SetMealDishMapper">
+
+    <!-- 查询对应套餐id -->
+    <select id="getSetMealDishIds" resultType="java.lang.Long">
+        select *
+        from setmeal_dish where dish_id in
+        <foreach collection="dishIds" item="dishId" separator="," open="(" close=")">
+            #{dishId}
+        </foreach>
+    </select>
+</mapper>