2014-10-05 58 views
1

說,我有表上的MySQL名爲tbl_order像這樣(只圖)結構:如何選擇以前的記錄不取決於在MySQL中的AutoIncrements ID?

 
--------------------------------------------------------------------------------------------------------- 
| id | grade | type | order_date   | order_confim_time | vol_in | vol_out | vol_dev | status | 
| AI | VARCH | VARCH | TIMESTAMP   | TIMESTAMP   | DOUBLE | DOUBLE | DOUBLE | VARCH | 
--------------------------------------------------------------------------------------------------------- 
| 81 | AAA | IN | 2014-09-10 09:00:00 | 2014-09-10 13:00:00 | 498000 |  0 | -2000 | CONFIRM | 
| 83 | AAA | IN | 2014-09-10 10:01:00 | 2014-09-10 14:00:00 | 998000 |  0 | -2000 | CONFIRM | 
| 85 | AAA | OUT | 2014-09-11 09:02:00 | 2014-09-11 13:00:00 |  0 | 99000 | -1000 | CONFIRM | 
| 87 | AAA | OUT | 2014-09-11 10:03:00 | 2014-09-11 14:00:00 |  0 | 145000 | -5000 | CONFIRM | 
| 89 | AAA | OUT | 2014-09-12 09:04:00 | 2014-09-12 13:00:00 |  0 | 120000 | -5000 | CONFIRM | 
| 91 | AAA | OUT | 2014-09-12 09:06:00 | NULL    |  0 | 130000 | -2000 | NOTCONF | 
| 93 | AAA | OUT | 2014-09-13 10:05:00 | 2014-09-12 14:00:00 |  0 | 115000 | -5000 | CONFIRM | 
--------------------------------------------------------------------------------------------------------- 

然後我做了以下查詢:

SELECT * FROM `tbl_order` WHERE `tbl_order`.`grade` = 'AAA' AND `tbl_order`.`order_confim_time` < NOW() ORDER BY `tbl_order`.`status` DESC, `tbl_order`.`order_confim_time` ASC 

所以,在我們可以得到以下結果:

 
--------------------------------------------------------------------------------------------------------- 
| id | grade | type | order_date   | order_confim_time | vol_in | vol_out | vol_dev | status | 
| AI | VARCH | VARCH | TIMESTAMP   | TIMESTAMP   | DOUBLE | DOUBLE | DOUBLE | VARCH | 
--------------------------------------------------------------------------------------------------------- 
| 91 | AAA | OUT | 2014-09-12 09:06:00 | NULL    |  0 | 130000 | -2000 | NOTCONF | 
| 93 | AAA | OUT | 2014-09-13 10:05:00 | 2014-09-12 14:00:00 |  0 | 115000 | -5000 | CONFIRM | 
| 89 | AAA | OUT | 2014-09-12 09:04:00 | 2014-09-12 13:00:00 |  0 | 120000 | -5000 | CONFIRM | 
| 87 | AAA | OUT | 2014-09-11 10:03:00 | 2014-09-11 14:00:00 |  0 | 145000 | -5000 | CONFIRM | 
| 85 | AAA | OUT | 2014-09-11 09:02:00 | 2014-09-11 13:00:00 |  0 | 99000 | -1000 | CONFIRM | 
| 83 | AAA | IN | 2014-09-10 10:01:00 | 2014-09-10 14:00:00 | 998000 |  0 | -2000 | CONFIRM | 
| 81 | AAA | IN | 2014-09-10 09:00:00 | 2014-09-10 13:00:00 | 498000 |  0 | -2000 | CONFIRM | 
--------------------------------------------------------------------------------------------------------- 

我爲了寫下面的函數在我的模型Order用遞歸以獲得上一行:

 

    // i made simplify code, but still the code only work on 1st previous row. the rest still not. 
    public function getPrevRow() { 
    if (is_null($this->order_confim_time)) 
     { 
      $data = self::model()->find(array(
       'condition' => '`t`.`grade`=:type_order AND (`t`.`order_date` '`t`.`status` DESC, `t`.`order_confim_time` DESC, `t`.`id` DESC', 
       'limit'  => 1, 
       'params' => array('type_order' => $this->grade, ':current_date_confirm' => $this->order_confim_time), 
      )); 

      if (is_null($data)) return 0; 
      else return floatval($data->PrevRow) + 
      floatval($data->vol_in) + 
      floatval($data->vol_dev) - 
      floatval($data->vol_out); 
     } else { 
      $data = self::model()->find(array(
       'condition' => '`t`.`order_confim_time` '`t`.`status` DESC, `t`.`id` DESC', 
       'limit'  => 1, 
       'params' => array(':current_date_confirm' => $this->order_confim_time, 'type_order' => $this->grade), 
      )); 

      if (is_null($data)) return 0; 
      else return floatval($data->PrevRow) + 
      floatval($data->vol_in) + 
      floatval($data->vol_dev) - 
      floatval($data->vol_out); 
     } 
    } 

結果相當不錯,只有尊重order_confirm_timeNOT NULL值。

Current result in CGridView

The expected condition is something like this

我怎樣才能上一行而不需要依賴於ORDER BY id DESC?目前我依賴於ORDER BY order_confirm_time

我使用Yii 1.1.16分支,PHP 5.4 @ Windows 7的64位,MariaDB的38年5月5日

+0

我不明白你的問題「我怎樣才能得到與ID = 93行無需取決於ORDER BY ID DESC」,你可以只發布你想要得到的輸出? – 2014-10-05 19:05:02

+0

@ brian-demilia,對不起,如果我的問題不清楚。目標/預期的結果是我可以得到以前的行ID而不依賴於'id'字段。目前我使用'ORDER BY order_confim_time',但只顯示不爲空(帶有值的order_confim_time)數據。 請看看這張照片[當前情況](http://imgbox.com/SKf73tAy)。有2個圓圈,紅色和綠色。我想做出這樣的[預期條件](http://imgbox.com/ocnyOCha)。 – agungandika 2014-10-05 19:41:07

+0

@Brian德米莉亞,對我的案件的任何想法?我已經簡化了我的代碼,但仍然只有第一行。其餘的仍然指向前一行。 – agungandika 2014-10-05 19:59:22

回答

0

在僞代碼,你可以這樣做:

  1. 初始化tempv_var
  2. 通過記錄你的my_array
  3. 存儲RECO之前初始化my_array
  4. 循環您的記錄
  5. 做一些條件,在這裏在my_array [temp_var]
  6. 增量temp_var

在結束RDS你有你的my_array是內容與temp_var的索引記錄。這是直接的解決方案,但您可以在SQL查詢中執行此操作,並在腳本中添加一些邏輯。