修正行政区域添加后无法选择

app/Gdoo/System/Hooks/RegionHook.php

@@ -0,0 +1,40 @@
+<?php namespace Gdoo\System\Hooks;
+
+use DB;
+use Gdoo\System\Models\Region;
+
+class RegionHook
+{
+    static $linkOptions = [];
+
+    public function onBeforeForm($params) {
+        return $params;
+    }
+
+    public function onAfterForm($params) {
+        return $params;
+    }
+
+    public function onBeforeStore($params) {
+        $master = $params['master'];
+        $master['parent_id'] = (int)$master['parent_id'];
+
+        $master['layer'] = 1;
+        if ($master['parent_id'] > 0) {
+            $parent = Db::table('region')->where('id', $master['parent_id'])->first();
+            $master['layer'] = $parent['layer'] + 1;
+        }
+
+        $params['master'] = $master;
+        return $params;
+    }
+
+    public function onAfterStore($params) {
+        return $params;
+    }
+
+    public function onBeforeDelete($params) {
+        return $params;
+    }
+    
+}

app/Gdoo/System/config.php

@@ -10,6 +10,9 @@ return [
             'url' => 'system/region/dialog',
         ],
     ],
+    "listens" => [
+        'region' => 'Gdoo\System\Hooks\RegionHook',
+    ],
     "controllers" => [
         "setting" => [
             "name" => "基础设置",