删除加判断不能删除最后的版本

ruoyi-modules/management-platform/src/main/java/com/ruoyi/platform/controller/dataset/NewDatasetFromGitController.java

@@ -12,6 +12,9 @@ import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import javax.annotation.Resource;
+import java.util.List;
+import java.util.Map;
+
 @RestController
 @RequestMapping("newdataset")
 //@Api(value = "新数据集管理")
@@ -92,6 +95,11 @@ public class NewDatasetFromGitController {
     @DeleteMapping("/deleteDatasetVersion")
     @ApiOperation(value = "删除数据集版本")
     public AjaxResult deleteDatasetVersion(@RequestParam("identifier") String repo,@RequestParam("owner")String owner,@RequestParam("version")String version) throws Exception {
+        // 查询版本，如果是最后一个版本，则不能删除
+        List<Map<String, Object>> versionList = this.newDatasetService.getVersionList(repo, owner);
+        if(versionList.size() == 1){
+            return AjaxResult.error("当前数据集只有一个版本，不能删除该版本");
+        }
         this.newDatasetService.deleteDatasetVersionNew(repo,owner,version);
         return AjaxResult.success();
     }