修改菜品业务代码开发

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

@@ -7,6 +7,7 @@ import com.sky.dto.DishPageQueryDTO;
 import com.sky.result.PageResult;
 import com.sky.result.Result;
 import com.sky.service.DishService;
+import com.sky.vo.DishVO;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
@@ -75,4 +76,37 @@ public class DishController {
 
         return Result.success();
     }
+
+
+    /**
+     * 根据id查询菜品
+     * @param id
+     * @return
+     */
+    @GetMapping("/{id}")
+    @ApiOperation("根据id查询菜品")
+    public Result<DishVO> getById(@PathVariable Long id){
+        log.info("根据id查询菜品:{}", id);
+
+        DishVO dishVO = dishService.getByIdWithFlavor(id);
+
+        return Result.success(dishVO);
+    }
+
+
+    /**
+     * 修改菜品
+     * @param dishDTO
+     * @return
+     */
+    @PutMapping
+    @ApiOperation("修改菜品")
+    public Result update(@RequestBody DishDTO dishDTO){
+
+        log.info("修改菜品:{}", dishDTO);
+
+        dishService.updateWithFlavor(dishDTO);
+
+        return Result.success();
+    }
 }

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

@@ -4,6 +4,7 @@ package com.sky.mapper;
 import com.sky.entity.DishFlavor;
 import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
 
 import java.util.List;
 
@@ -30,4 +31,13 @@ public interface DishFlavorMapper {
      * @param dishIds
      */
     void deleteByDishIds(List<Long> dishIds);
+
+
+    /**
+     * 根据菜品id查询对应的口味数据
+     * @param dishId
+     * @return
+     */
+    @Select("select * from dish_flavor where dish_id = #{dishId}")
+    List<DishFlavor> getByDishId(Long dishId);
 }

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

@@ -62,4 +62,12 @@ public interface DishMapper {
      * @param ids
      */
     void deleteByIds(List<Long> ids);
+
+
+    /**
+     * 根据id动态修改菜品数据
+     * @param dish
+     */
+    @AutoFill(value = OperationType.UPDATE)
+    void update(Dish dish);
 }

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

@@ -3,6 +3,7 @@ package com.sky.service;
 import com.sky.dto.DishDTO;
 import com.sky.dto.DishPageQueryDTO;
 import com.sky.result.PageResult;
+import com.sky.vo.DishVO;
 
 import java.util.List;
 
@@ -29,4 +30,19 @@ public interface DishService {
      * @param ids
      */
     void deleteBatch(List<Long> ids);
+
+
+    /**
+     * 根据id查询菜品和对应的口味数据
+     * @param id
+     * @return
+     */
+    DishVO getByIdWithFlavor(Long id);
+
+
+    /**
+     * 根据id修改菜品信息及其关联的口味信息
+     * @param dishDTO
+     */
+    void updateWithFlavor(DishDTO dishDTO);
 }

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

@@ -114,4 +114,52 @@ public class DishServiceImpl implements DishService {
         dishFlavorMapper.deleteByDishIds(ids);
 
     }
+
+
+    /**
+     * 根据id查询菜品和对应的口味数据
+     * @param id
+     * @return
+     */
+    @Override
+    public DishVO getByIdWithFlavor(Long id) {
+
+        //根据id查询菜品数据
+        Dish dish = dishMapper.getById(id);
+
+        //根据id查询菜品关联的口味
+        List<DishFlavor> dishFlavors = dishFlavorMapper.getByDishId(id);
+
+        // 再封装到一起 DishVO
+        DishVO dishVO = new DishVO();
+        BeanUtils.copyProperties(dish, dishVO);
+        dishVO.setFlavors(dishFlavors);
+        return dishVO;
+    }
+
+
+    /**
+     * 根据id修改菜品信息及其关联的口味信息
+     * @param dishDTO
+     */
+    @Override
+    public void updateWithFlavor(DishDTO dishDTO) {
+        Dish dish = new Dish();
+        BeanUtils.copyProperties(dishDTO, dish);
+
+        //修改菜品表基本信息
+        dishMapper.update(dish);
+
+        //先删除原有的口味数据
+        dishFlavorMapper.deleteByDishId(dishDTO.getId());
+
+        //再插入新的口味数据
+        List<DishFlavor> flavors = dishDTO.getFlavors();
+        if (flavors != null && flavors.size() > 0) {
+            flavors.forEach(dishFlavor -> {
+                dishFlavor.setDishId(dishDTO.getId());
+            });
+            dishFlavorMapper.insertBatch(flavors);
+        }
+    }
 }

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

@@ -10,7 +10,6 @@
             (#{name}, #{categoryId}, #{price}, #{image}, #{description}, #{createTime}, #{updateTime}, #{createUser}, #{updateUser}, #{status})
     </insert>
 
-
     <delete id="deleteByIds">
         delete from dish where id in
         <foreach collection="ids" item="id" separator="," open="(" close=")">
@@ -18,7 +17,6 @@
         </foreach>
     </delete>
 
-
     <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>
@@ -34,4 +32,20 @@
         </where>
         order by d.create_time desc
     </select>
+
+    <update id="update">
+        update dish
+        <set>
+            <if test="name != null">name = #{name},</if>
+            <if test="categoryId != null">category_id = #{categoryId},</if>
+            <if test="price != null">price = #{price},</if>
+            <if test="image != null">image = #{image},</if>
+            <if test="description != null">description = #{description},</if>
+            <if test="status != null">status = #{status},</if>
+            <if test="updateTime != null">update_time = #{updateTime},</if>
+            <if test="updateUser != null">update_user = #{updateUser},</if>
+        </set>
+        where id = #{id}
+    </update>
+
 </mapper>