条件组装

application/model/ChatUserExt.php

@@ -42,6 +42,14 @@ class ChatUserExt extends BaseModel
             $where_['ext_id'] = $params['ext_id'];
         }
 
+        if (isset($params['device_id'])) {
+            $where_['device_id'] = $params['device_id'];
+        }
+
+        if (isset($params['push_id'])) {
+            $where_['push_id'] = $params['push_id'];
+        }
+
         $data = $this->db->field($field)
             ->where($where_)
             ->select();