后台功能修改

@@ -180,8 +180,10 @@ class Study extends Backend
             }
             $result = $this->model->allowField(true)->save($params);
             $id  = $this->model->id;
-            $brpath = Resource::StudyBar($id);
-            $this->model->save(['barcode'=>$brpath],['id'=>$id]);
+            $unique = time();
+            $brpath = Resource::StudyBar($unique);
+            $time = date('YmdHi',time());
+            $this->model->save(['barcode'=>$brpath],['sno'=>$time],['id'=>$id]);
             Db::commit();
         } catch (ValidateException|PDOException|Exception $e) {
             Db::rollback();

@@ -6,10 +6,10 @@ use tinymeng\code\Generate;
 
 class Resource
 {
-    public static function StudyBar($id){
+    public static function StudyBar($unique){
         $generate = Generate::qr();
         /** 直接输出图片 */
-        $file_path = $generate->create($id,true);
+        $file_path = $generate->create($unique,true);
         $file_path = substr($file_path,strripos($file_path,"public")+6);
         return $file_path;
     }