嗨,是否在doctrine2 ifnull? 我需要用......怎么样?
SELECT *
FROM `apns_task_message`
ORDER BY IFNULL( `sent_at` , NOW( ) ) , `priority` DESC , `position` ASC
如何将这个sql转换为doctrine?
$qb = $this->getRepository()->createQueryBuilder('tm');
$qb->leftJoin('tm.apnsTask', 't');
$qb->add('where', 't.id = :task_id')->setParameter('task_id', $task_id);
//$qb->add('orderBy', 'IFNULL(tm.sent_at, NOW()), tm.priority DESC, tm.position ASC');
$qb->add('orderBy', 'd_date, tm.priority DESC, tm.position ASC');
$q = $qb->getQuery();
return $q->getResult();
发现!!! 感谢@AdrienBrault为“coalesce”运算符
$now = new \DateTime("now");
$qb = $this->getRepository()->createQueryBuilder('tm');
$qb->addSelect('coalesce (tm.sentAt, :sent_date) as sent_date')->setParameter('sent_date', $now->format("Y-m-d H:i:s"));
$qb->leftJoin('tm.apnsTask', 't');
$qb->add('where', 't.id = :task_id')->setParameter('task_id', $task_id);
$qb->add('orderBy', 'sent_date ASC, tm.priority DESC, tm.position ASC');
$q = $qb->getQuery();
答案 0 :(得分:0)
如果要在doctrine查询构建器中使用sql的IFNULL函数,则需要对IFNULL使用doctrine扩展。
首先,您需要注册要在Doctrine bootstrap中使用的扩展类
$config = Setup::createAnnotationMetadataConfiguration($metadata_paths, $dev_mode, $proxies_dir);
$driver = new AnnotationDriver(new AnnotationReader());
$config->setMetadataDriverImpl($driver);
require_once './Doctrine/DoctrineExtensions/Query/MySql/IfNull.php';
$config->addCustomStringFunction('IfNull', '\DoctrineExtensions\Query\Mysql\IfNull');
$this->em = EntityManager::create($connection_options, $config);
$classLoader = new ClassLoader('DoctrineExtensions', $extension_dir);
$classLoader->register();
以下是IFNULL原则扩展代码。
<?php
namespace DoctrineExtensions\Query\Mysql;
use Doctrine\ORM\Query\AST\Functions\FunctionNode,
Doctrine\ORM\Query\Lexer;
/**
* @author Andrew Mackrodt <andrew@ajmm.org>
*/
class IfNull extends FunctionNode
{
private $expr1;
private $expr2;
public function parse(\Doctrine\ORM\Query\Parser $parser)
{
$parser->match(Lexer::T_IDENTIFIER);
$parser->match(Lexer::T_OPEN_PARENTHESIS);
$this->expr1 = $parser->ArithmeticExpression();
$parser->match(Lexer::T_COMMA);
$this->expr2 = $parser->ArithmeticExpression();
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
}
public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
{
return 'IFNULL('
.$sqlWalker->walkArithmeticPrimary($this->expr1). ', '
.$sqlWalker->walkArithmeticPrimary($this->expr2).')';
}
}
您可以从here
下载扩展程序对于您的情况,请使用此选项。
$qb = $this->getRepository()->createQueryBuilder('tm');
return $qb
->select("*")
->from("tm.apnsTask", "t")
->orderBy("IFNULL(t.sent_at, NOW()), t.priority DESC, t.position ASC")
->getQuery()
->getResult();