refactor: 修改后台批量询盘采购可选品类接口

app/admin/controller/v1/BulkPurchaseInquiry.php

@@ -16,12 +16,11 @@ class BulkPurchaseInquiry
     public function interested()
     {
         $config_name = 'bulk_purchase_inquiry_interested';
-        $lang = LanguageModel::bypk(request()->lang_id)->find();
-        if (empty($lang)) {
-            return error('当前选定语言出错');
-        }
-
-        $config = SysConfigModel::byName($lang->code . '_' . $config_name)->find();
+        $config = SysConfigModel::hasWhere('group', function($query) {
+                $query->where('language_id', '=', request()->lang_id);
+            })
+            ->byName($config_name)
+            ->find();
         if (empty($config)) {
             return error('当前选定语言的采购可选品类配置出错');
         }