添加职位分类相关接口：删除职位分类

app/JsonRpc/NewsService.php

@@ -2140,11 +2140,11 @@ class NewsService implements NewsServiceInterface
         if(empty($zw_id)){
             return Result::error('职位分类不存在');
         }
-        $zw_job = JobPosition::when($zw_id->zwpid == 0,function($query)use($zw_id){
-            $query->where('zwpid', $zw_id->zwid);
-        })->first();
-        if(!empty($zw_job)){
-            return Result::error('请先删除子分类');
+        if($zw_id->zwpid == 0){
+            $zw_job = JobPosition::where('zwpid', $zw_id->zwid)->first();
+            if(!empty($zw_job)){
+                return Result::error('请先删除子分类');
+            }
         }
         $result = JobPosition::where('zwid', $data['zwid'])->delete();
         if(empty($result)){