feat：续费增加关联订单号显示

src/main/java/com/gxwebsoft/shop/entity/OrderPay.java

@@ -116,6 +116,10 @@ public class OrderPay implements Serializable {
     @ApiModelProperty(value = "续租订单的关联单号")
     private Integer rentOrderId;
 
+    @ApiModelProperty(value = "关联订单号")
+    @TableField(exist = false)
+    private String rentOrderNo;
+
     @ApiModelProperty(value = "电池租金")
     private BigDecimal batteryRent;
 
@@ -236,4 +240,13 @@ public class OrderPay implements Serializable {
         }
         return expirationDay;
     }
+
+    public String getRentOrderNo(){
+        if (null != comments){
+            if (comments.contains("续租订单：")){//FIXME 还有更好的做法？
+                return comments.replace("续租订单：","");
+            }
+        }
+        return null;
+    }
 }