完善功能

app/admin/controller/asset/HouseTypeController.php

@@ -129,7 +129,7 @@ class HouseTypeController extends Curd
         if (!empty($request->post('asset_house_address'))) {
             $data['asset_json'] = json_encode(['address' => $request->post('asset_house_address')]);
         }else{
-            $data['asset_json'] = [];
+            $data['asset_json'] = '[]';
         }
 
         unset($data[$primary_key]);