分类管理模块功能开发
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package com.sky.controller.admin;
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import com.sky.dto.CategoryDTO;
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import com.sky.dto.CategoryPageQueryDTO;
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import com.sky.entity.Category;
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import com.sky.result.PageResult;
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import com.sky.result.Result;
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import com.sky.service.CategoryService;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.*;
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import java.util.List;
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/**
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* 分类管理
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*/
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@RestController
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@RequestMapping("/admin/category")
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@Api(tags = "分类相关接口")
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@Slf4j
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public class CategoryController {
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@Autowired
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private CategoryService categoryService;
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/**
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* 新增分类
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* @param categoryDTO
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* @return
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*/
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@PostMapping
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@ApiOperation("新增分类")
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public Result<String> save(@RequestBody CategoryDTO categoryDTO){
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log.info("新增分类：{}", categoryDTO);
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categoryService.save(categoryDTO);
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return Result.success();
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}
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/**
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* 分类分页查询
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* @param categoryPageQueryDTO
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* @return
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*/
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@GetMapping("/page")
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@ApiOperation("分类分页查询")
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public Result<PageResult> page(CategoryPageQueryDTO categoryPageQueryDTO){
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log.info("分页查询：{}", categoryPageQueryDTO);
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PageResult pageResult = categoryService.pageQuery(categoryPageQueryDTO);
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return Result.success(pageResult);
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}
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/**
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* 删除分类
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* @param id
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* @return
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*/
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@DeleteMapping
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@ApiOperation("删除分类")
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public Result<String> deleteById(Long id){
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log.info("删除分类：{}", id);
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categoryService.deleteById(id);
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return Result.success();
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}
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/**
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* 修改分类
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* @param categoryDTO
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* @return
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*/
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@PutMapping
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@ApiOperation("修改分类")
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public Result<String> update(@RequestBody CategoryDTO categoryDTO){
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categoryService.update(categoryDTO);
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return Result.success();
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}
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/**
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* 启用、禁用分类
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* @param status
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* @param id
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* @return
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*/
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@PostMapping("/status/{status}")
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@ApiOperation("启用禁用分类")
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public Result<String> startOrStop(@PathVariable("status") Integer status, Long id){
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categoryService.startOrStop(status,id);
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return Result.success();
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}
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/**
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* 根据类型查询分类
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* @param type
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* @return
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*/
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@GetMapping("/list")
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@ApiOperation("根据类型查询分类")
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public Result<List<Category>> list(Integer type){
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List<Category> list = categoryService.list(type);
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return Result.success(list);
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}
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}
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package com.sky.mapper;
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import com.github.pagehelper.Page;
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import com.sky.enumeration.OperationType;
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import com.sky.dto.CategoryPageQueryDTO;
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import com.sky.entity.Category;
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import org.apache.ibatis.annotations.Delete;
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import org.apache.ibatis.annotations.Insert;
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import org.apache.ibatis.annotations.Mapper;
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import java.util.List;
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@Mapper
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public interface CategoryMapper {
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/**
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* 插入数据
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* @param category
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*/
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@Insert("insert into category(type, name, sort, status, create_time, update_time, create_user, update_user)" +
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" VALUES" +
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" (#{type}, #{name}, #{sort}, #{status}, #{createTime}, #{updateTime}, #{createUser}, #{updateUser})")
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void insert(Category category);
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/**
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* 分页查询
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* @param categoryPageQueryDTO
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* @return
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*/
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Page<Category> pageQuery(CategoryPageQueryDTO categoryPageQueryDTO);
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/**
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* 根据id删除分类
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* @param id
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*/
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@Delete("delete from category where id = #{id}")
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void deleteById(Long id);
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/**
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* 根据id修改分类
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* @param category
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*/
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void update(Category category);
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/**
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* 根据类型查询分类
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* @param type
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* @return
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*/
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List<Category> list(Integer type);
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}
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package com.sky.mapper;
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import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Select;
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@Mapper
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public interface DishMapper {
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/**
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* 根据分类id查询菜品数量
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* @param categoryId Long
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* @return Integer
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*/
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@Select("select count(id) from dish where category_id = #{categoryId}")
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Integer countByCategoryId(Long categoryId);
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}
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package com.sky.mapper;
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import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Select;
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@Mapper
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public interface SetmealMapper {
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/**
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* 根据分类id查询套餐的数量
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* @param id
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* @return
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*/
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@Select("select count(id) from setmeal where category_id = #{categoryId}")
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Integer countByCategoryId(Long id);
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}
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package com.sky.service;
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import com.sky.dto.CategoryDTO;
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import com.sky.dto.CategoryPageQueryDTO;
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import com.sky.entity.Category;
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import com.sky.result.PageResult;
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import java.util.List;
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public interface CategoryService {
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/**
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* 新增分类
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* @param categoryDTO
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*/
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void save(CategoryDTO categoryDTO);
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/**
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* 分页查询
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* @param categoryPageQueryDTO
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* @return
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*/
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PageResult pageQuery(CategoryPageQueryDTO categoryPageQueryDTO);
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/**
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* 根据id删除分类
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* @param id
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*/
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void deleteById(Long id);
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/**
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* 修改分类
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* @param categoryDTO
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*/
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void update(CategoryDTO categoryDTO);
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/**
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* 启用、禁用分类
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* @param status
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* @param id
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*/
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void startOrStop(Integer status, Long id);
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/**
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* 根据类型查询分类
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* @param type
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* @return
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*/
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List<Category> list(Integer type);
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}
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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.context.BaseContext;
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import com.sky.dto.CategoryDTO;
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import com.sky.dto.CategoryPageQueryDTO;
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import com.sky.entity.Category;
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import com.sky.exception.DeletionNotAllowedException;
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import com.sky.mapper.CategoryMapper;
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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.result.PageResult;
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import com.sky.service.CategoryService;
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import lombok.extern.slf4j.Slf4j;
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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 java.time.LocalDateTime;
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import java.util.List;
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/**
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* 分类业务层
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*/
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@Service
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@Slf4j
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public class CategoryServiceImpl implements CategoryService {
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@Autowired
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private CategoryMapper categoryMapper;
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@Autowired
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private DishMapper dishMapper;
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@Autowired
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private SetmealMapper setmealMapper;
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/**
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* 新增分类
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* @param categoryDTO
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*/
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public void save(CategoryDTO categoryDTO) {
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Category category = new Category();
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//属性拷贝
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BeanUtils.copyProperties(categoryDTO, category);
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//分类状态默认为禁用状态0
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category.setStatus(StatusConstant.DISABLE);
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//设置创建时间、修改时间、创建人、修改人
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category.setCreateTime(LocalDateTime.now());
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category.setUpdateTime(LocalDateTime.now());
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category.setCreateUser(BaseContext.getCurrentId());
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category.setUpdateUser(BaseContext.getCurrentId());
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categoryMapper.insert(category);
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}
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/**
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* 分页查询
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* @param categoryPageQueryDTO
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* @return
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*/
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public PageResult pageQuery(CategoryPageQueryDTO categoryPageQueryDTO) {
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PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());
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//下一条sql进行分页，自动加入limit关键字分页
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Page<Category> page = categoryMapper.pageQuery(categoryPageQueryDTO);
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return new PageResult(page.getTotal(), page.getResult());
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}
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/**
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* 根据id删除分类
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* @param id
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*/
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public void deleteById(Long id) {
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//查询当前分类是否关联了菜品，如果关联了就抛出业务异常
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Integer count = dishMapper.countByCategoryId(id);
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if(count > 0){
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//当前分类下有菜品，不能删除
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throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
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}
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//查询当前分类是否关联了套餐，如果关联了就抛出业务异常
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count = setmealMapper.countByCategoryId(id);
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if(count > 0){
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//当前分类下有菜品，不能删除
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throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
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}
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//删除分类数据
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categoryMapper.deleteById(id);
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}
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/**
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* 修改分类
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* @param categoryDTO
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*/
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public void update(CategoryDTO categoryDTO) {
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Category category = new Category();
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BeanUtils.copyProperties(categoryDTO,category);
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//设置修改时间、修改人
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category.setUpdateTime(LocalDateTime.now());
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category.setUpdateUser(BaseContext.getCurrentId());
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categoryMapper.update(category);
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}
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/**
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* 启用、禁用分类
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* @param status
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* @param id
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*/
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public void startOrStop(Integer status, Long id) {
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Category category = Category.builder()
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.id(id)
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.status(status)
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.updateTime(LocalDateTime.now())
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.updateUser(BaseContext.getCurrentId())
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.build();
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categoryMapper.update(category);
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}
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/**
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* 根据类型查询分类
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* @param type
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* @return
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*/
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public List<Category> list(Integer type) {
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return categoryMapper.list(type);
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}
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}
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<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
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<mapper namespace="com.sky.mapper.CategoryMapper">
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<select id="pageQuery" resultType="com.sky.entity.Category">
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select * from category
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<where>
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<if test="name != null and name != ''">
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and name like concat('%',#{name},'%')
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</if>
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<if test="type != null">
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and type = #{type}
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</if>
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</where>
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order by sort asc , create_time desc
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</select>
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<update id="update" parameterType="Category">
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update category
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<set>
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<if test="type != null">
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type = #{type},
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</if>
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<if test="name != null">
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name = #{name},
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</if>
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<if test="sort != null">
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sort = #{sort},
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</if>
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<if test="status != null">
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status = #{status},
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</if>
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<if test="updateTime != null">
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update_time = #{updateTime},
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</if>
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<if test="updateUser != null">
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update_user = #{updateUser}
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</if>
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</set>
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where id = #{id}
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</update>
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<select id="list" resultType="Category">
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select * from category
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where status = 1
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<if test="type != null">
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and type = #{type}
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</if>
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order by sort asc,create_time desc
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</select>
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</mapper>
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