退款申请

application/model/ORefundModel.php

@@ -236,4 +236,13 @@ class ORefundModel extends Model{
             ->join('o_financial_audit c', 'a.order_id=c.order_id', 'left')
             ->count();
     }
+
+    public function getRefundSum($field, $params)
+    {
+        $data = $this->db_
+            ->where($params)
+            ->sum($field);
+        return $data;
+
+    }
 }
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