Symfony的學說的QueryBuilder

Question

我嘗試此查詢轉換爲QueryBuilder的：

SELECT *, landingpages_content.id as cid FROM `landingpages_content` LEFT JOIN content ON landingpages_content.content_id = content.id WHERE content.enabled = 1 AND landingpages_content.landingpage_id = ? ORDER BY landingpages_content.`order` 

這是我的QueryBuilder代碼：

$queryBuilder 
    ->select('*, landingpages_content.id as cid') 
    ->from('landingpages_content', 'landingpages_content') 
    ->leftJoin('landingpages_content.content_id', 'content.id', null) 
    ->where('content.enabled = 1') 
    ->andWhere('landingpages_content.landingpage_id = :id') 
    ->setParameter('id', $id) 
    ->orderBy('landingpages_content.`order`', 'ASC'); 

它返回

InvalidArgumentException：查詢生成器無法加入。

Answer 1

您正在使用leftJoin方法錯誤。嘗試這樣的：

$queryBuilder 
    ->select('*, landingpages_content.id as cid') 
    ->from('landingpages_content', 'landingpages_content') 
    ->leftJoin('landingpages_content.content', 'content', 'ON', 'landingpages_content.content_id = content.id') 
    ->where('content.enabled = 1') 
    ->andWhere('landingpages_content.landingpage_id = :id') 
    ->setParameter('id', $id) 
    ->orderBy('landingpages_content.order', 'ASC');