content: 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.Delete;
  import org.apache.ibatis.annotations.Mapper;
  import org.apache.ibatis.annotations.Select;
  
  import java.util.List;
  
  /**
   * @version 1.0
   * @Author Imak
   * @Date 2024/8/6 20:27
   * @注释
   */
  
  /**
   * 菜品的持久层
   */
  @Mapper
  public interface DishMapper {
  
      /**
       * 根据分类的id查询其是否有关联的菜品(数量)
       * @param id
       * @return
       */
      @Select("select count(id) from dish where category_id=#{categoryId}")
      Integer countByCategoryId(Long id);
  
      /**
       * 新增菜品
       * @param dish
       */
      @AutoFill(value = OperationType.INSERT)
      void insert(Dish dish);
  
      /**
       * 菜品分页查询
       * @param dishPageQueryDTO
       * @return
       */
      Page<DishVO> pageQuery(DishPageQueryDTO dishPageQueryDTO);
  
      /**
       * 根据id查询菜品
       * @param id
       * @return
       */
      @Select("select * from dish where id = #{id}")
      Dish getById(Long id);
  
      /**
       * 根据主键删除菜品数据
       * @param id
       */
      @Delete("delete from dish where id = #{id}")
      void deleteById(Long id);
  
      /**
       * 根据id集合批量删除
       * @param ids
       */
      void deleteByIds(List<Long> ids);
  
      /**
       * 修改菜品信息
       * @param dish
       */
      @AutoFill(value = OperationType.UPDATE)
      void update(Dish dish);
  
      /**
       * 动态条件查询菜品
       * @param dish
       * @return
       */
      List<Dish> list(Dish dish);
  
      /**
       * 根据套餐id查询其菜品
       * @param setmealId
       * @return
       */
      @Select("select a.* from dish a left join setmeal_dish b on a.id = b.dish_id where b.setmeal_id = #{setmealId}")
      List<Dish> getBySetmealId(Long setmealId);
  
      /**
       * 根据状态查询菜品数量
       * @param status
       * @return
       */
      @Select("select count(id) from dish where status=#{status}")
      Integer countByStatus(Integer status);
  }
  