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[英]Doctrine 1.2 + Zend 11.11: Define where generated classes will be saved
[英]Ordering by a generated field in Doctrine 1.2
我正在使用preDqlSelect()回調添加“虛擬字段”。 但是我的查詢必須在觸發回調之前進行驗證,因為查詢模型時無法按新字段排序。
這是我的回調:
class Artist extends BaseArtist
{
public function preDqlSelect(Doctrine_Event $event)
{
// Add title field (concatenation of first_name, last_name, and company fields)
$params = $event->getParams();
$q = $event->getQuery();
$a = $params['alias'];
if (
$q->contains($a.'.first_name')
&& $q->contains($a.'.last_name')
&& $q->contains($a.'.company')
) {
$exists = '!ISNULL(NULLIF('.$a.'.%s, \'\'))';
$value = 'IFNULL('.$a.'.%1$s, \'\')';
$if = sprintf($exists, 'first_name').' OR '.sprintf($exists, 'last_name');
$thenPiece1 = sprintf($value, 'first_name').', \' \', '.sprintf($value, 'last_name');
$thenPiece2 = 'IF('.sprintf($exists, 'company').', CONCAT(\' (\', '.sprintf($value, 'company').', \')\'), \'\')';
$then = 'TRIM(CONCAT('.$thenPiece1.', '.$thenPiece2 .'))';
$else = sprintf($value, 'company');
$select = 'IF('.$if.', '.$then.', '.$else.') AS title';
$q->addSelect($select);
}
}
// ...
這是我的查詢:
$artists = Doctrine_Query::create()
->select('a.id, a.first_name, a.last_name, a.company')
->from('Artist a')
->innerJoin('a.Products p')
->where('a.active <> 0')
->andWhere('p.active <> 0')
->orderBy('a.title')
->execute();
這是我得到的錯誤:
致命錯誤:/[REMOVED]/lib/doctrine/Doctrine/Query/Orderby.php:94中堆棧消息:#0 / [REMOVED] / lib / doctrine / Doctrine /中未捕獲的異常'Doctrine_Query_Exception',消息為“未知列標題” Query / Abstract.php(2077):Doctrine_Query_Orderby-> parse('a.title')#1 / [已刪除] /lib/doctrine/Doctrine/Query.php(1160):Doctrine_Query_Abstract-> _ processDqlQueryPart('orderby',Array )#2 / [已刪除] /lib/doctrine/Doctrine/Query.php(1126):Doctrine_Query-> buildSqlQuery(false)#3 / [已刪除] /lib/doctrine/Doctrine/Query/Abstract.php(1137): Doctrine_Query-> getSqlQuery(Array,false)#4 /[REMOVED]/lib/doctrine/Doctrine/Query/Abstract.php(1106):Doctrine_Query_Abstract-> _ getDqlCallbackComponents(Array)#5 / [REMOVED] / lib / doctrine / Doctrine /Query/Abstract.php(1001):Doctrine_Query_Abstract->_preQuery(Array)#6 / srv / web / museumfounda在第94行的/[REMOVED]/lib/doctrine/Doctrine/Query/Orderby.php中
與此類似的東西應該起作用:
->select('a.id, a.first_name, a.last_name, a.company, IF(your constructed query from above) AS title')
這應該允許您像現在一樣使用ordering子句。 為了使它更好,您可以在Table
類內創建查詢,並your constructed query from above
傳遞your constructed query from above
的值your constructed query from above
以便於維護代碼。
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