diff --git a/lib/base/mao/mao.class.php b/lib/base/mao/mao.class.php
index c3aded9229..d1c0b15513 100644
--- a/lib/base/mao/mao.class.php
+++ b/lib/base/mao/mao.class.php
@@ -275,6 +275,8 @@ class baseMao
      */
     public function select(string $fields = '*')
     {
+        $this->conditions = [];
+
         $this->setFields(explode(',', str_replace(' ', '', $fields)));
         return $this;
     }
@@ -297,14 +299,14 @@ class baseMao
      * 开始条件判断。
      * Begin condition judge.
      *
-     * @param  bool $condition
+     * @param  bool|string $condition
      * @access public
      * @return static|sql the sql object.
      */
-    public function beginIF(bool $conditionResult)
+    public function beginIF(bool|string $conditionResult)
     {
         $this->isConditionChecking = true;
-        $this->conditionIsTrue     = $conditionResult;
+        $this->conditionIsTrue     = (bool)$conditionResult;
         return $this;
     }
 
diff --git a/module/setting/model.php b/module/setting/model.php
index a8bd3e6e02..f422ba7572 100644
--- a/module/setting/model.php
+++ b/module/setting/model.php
@@ -226,7 +226,8 @@ class settingModel extends model
         $params['section'] = isset($params['section']) ? $params['section'] : '';
         $params['key']     = isset($params['key'])     ? $params['key']     : '';
 
-        return $this->dao->$method('*')->from(TABLE_CONFIG)->where('1 = 1')
+        $access = $method == 'select' ? $this->mao : $this->dao;
+        return $access->$method('*')->from(TABLE_CONFIG)->where('1 = 1')
             ->beginIF($params['vision'])->andWhere('vision')->in($params['vision'])->fi()
             ->beginIF($params['owner'])->andWhere('owner')->in($params['owner'])->fi()
             ->beginIF($params['module'])->andWhere('module')->in($params['module'])->fi()
@@ -245,7 +246,7 @@ class settingModel extends model
     public function getSysAndPersonalConfig(string $account = ''): array
     {
         $owner = 'system,' . ($account ? $account : '');
-        $records = $this->dao->select('*')->from(TABLE_CONFIG)
+        $records = $this->mao->select('*')->from(TABLE_CONFIG)
             ->where('owner')->in($owner)
             ->beginIF(!$this->app->upgrading)->andWhere('vision')->in(array('', $this->config->vision))->fi()
             ->orderBy('id')