feats

src/main/java/com/yunzhi/demo/controller/TaTopicController.java

 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.yunzhi.demo.common.BaseController;
 import com.yunzhi.demo.common.ResponseBean;
+import com.yunzhi.demo.common.StringUtils;
 import com.yunzhi.demo.vo.SortParams;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
         return ResponseBean.success(result);
     }
 
-    /**
-     * 保存对象
-     * @param taTopic 实体对象
-     * @return
-     */
-    @RequestMapping(value="/taTopic",method= RequestMethod.POST)
-    @ApiOperation(value="保存", notes = "保存", httpMethod = "POST", response = ResponseBean.class)
-    public ResponseBean taTopicAdd(@ApiParam("保存内容") @RequestBody TaTopic taTopic) throws Exception{
-
-        if (iTaTopicService.save(taTopic)){
-            return ResponseBean.success(taTopic);
-        }else {
-            return ResponseBean.error("保存失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
-        }
-    }
-
     /**
      * 保存对象
      * @param taTopic 实体对象
     @ApiOperation(value="保存", notes = "保存", httpMethod = "POST", response = ResponseBean.class)
     public ResponseBean topicAdd(@ApiParam("保存内容") @RequestBody TaTopic taTopic) throws Exception{
 
+        QueryWrapper<TaTopic> queryWrapper = new QueryWrapper<TaTopic>()
+                .orderByDesc("sort_no")
+                .last("limit 1");
+
+        TaTopic max = iTaTopicService.getOne(queryWrapper);
+        int sortNo = max == null ? 0 : max.getSortNo() + 1;
+        taTopic.setSortNo(sortNo);
+
         if (iTaTopicService.save(taTopic)){
             return ResponseBean.success(taTopic);
         }else {
         }
     }
 
-    /**
-     * 根据id删除对象
-     * @param id  实体ID
-     */
-    @RequestMapping(value="/taTopic/{id}", method= RequestMethod.DELETE)
-    @ApiOperation(value="删除", notes = "删除", httpMethod = "DELETE", response = ResponseBean.class)
-    public ResponseBean taTopicDelete(@ApiParam("对象ID") @PathVariable Integer id) throws Exception{
-        if(iTaTopicService.removeById(id)){
-            return ResponseBean.success("success");
-        }else {
-            return ResponseBean.error("删除失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
-        }
-    }
-
     /**
      * 根据id删除对象
      * @param id  实体ID
         }
     }
 
-    /**
-     * 修改对象
-     * @param id  实体ID
-     * @param taTopic 实体对象
-     * @return
-     */
-    @RequestMapping(value="/taTopic/{id}",method= RequestMethod.PUT)
-    @ApiOperation(value="更新", notes = "更新", httpMethod = "PUT", response = ResponseBean.class)
-    public ResponseBean taTopicUpdate(@ApiParam("对象ID") @PathVariable Integer id,
-                                        @ApiParam("更新内容") @RequestBody TaTopic taTopic) throws Exception{
-
-        if (iTaTopicService.updateById(taTopic)){
-            return ResponseBean.success(iTaTopicService.getById(id));
-        }else {
-            return ResponseBean.error("修改失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
-        }
-    }
-
     /**
      * 修改对象
      * @param id  实体ID
         }
     }
 
-    /**
-     * 根据id查询对象
-     * @param id  实体ID
-     */
-    @RequestMapping(value="/taTopic/{id}",method= RequestMethod.GET)
-    @ApiOperation(value="详情", notes = "详情", httpMethod = "GET", response = ResponseBean.class)
-    public ResponseBean taTopicGet(@ApiParam("对象ID") @PathVariable Integer id) throws Exception{
-        return ResponseBean.success(iTaTopicService.getById(id));
-    }
-
     /**
      * 根据id查询对象
      * @param id  实体ID
     @RequestMapping(value="/admin/sort/topic",method= RequestMethod.PUT)
     @ApiOperation(value="排序", notes = "排序", httpMethod = "PUT", response = ResponseBean.class)
     public ResponseBean topicSort(@ApiParam("排序") @RequestBody SortParams sortParams) throws Exception {
-        if (null == sortParams.getFrom() || null == sortParams.getTo()) {
+        if (StringUtils.isEmpty(sortParams.getFrom()) || StringUtils.isEmpty(sortParams.getTo())) {
             return ResponseBean.success("success");
         }
 

src/main/java/com/yunzhi/demo/service/impl/TaTopicServiceImpl.java

             return;
         }
 
-        if (sortParams.getFrom() > sortParams.getTo()) {
-            taTopicMapper.topicSortAdd(sortParams.getFrom(), sortParams.getTo());
+        TaTopic from = getById(sortParams.getFrom());
+        TaTopic to = getById(sortParams.getTo());
+
+        Integer source = from.getSortNo();
+        Integer target = to.getSortNo();
+
+        if (source > target) {
+            taTopicMapper.topicSortAdd(source, target);
         } else {
-            taTopicMapper.topicSortSub(sortParams.getFrom(), sortParams.getTo());
+            taTopicMapper.topicSortSub(source, target);
         }
 
         UpdateWrapper<TaTopic> updateWrapper = new UpdateWrapper<TaTopic>()
-                .set("sort_no", sortParams.getTo())
-                .eq("serial_no", sortParams.getId());
+                .set("sort_no", target)
+                .eq("serial_no", sortParams.getFrom());
         update(updateWrapper);
     }
 }

src/main/java/com/yunzhi/demo/vo/SortParams.java

 public class SortParams {
 
     @ApiModelProperty(value = "源排序")
-    private Integer from;
+    private String from;
 
     @ApiModelProperty(value = "目标排序")
-    private Integer to;
-
-    @ApiModelProperty(value = "数据ID")
-    private String id;
+    private String to;
 }