我有以下代碼,它依靠Doctrine的QueryBuilder API來生成DQL陳述。Doctrine QueryBuilder和concat問題
class PlayerRepository extends EntityRepository
{
public function findByPartialNameMatch($trainer, $fullName)
{
$qb = $this->createQueryBuilder('tp');
$qb->innerJoin('tp.player', 'p')
->where($qb->expr()->andX(
$qb->expr()->orX(
$qb->expr()->like(
$qb->expr()->concat('p.firstName', $qb->expr()->concat(' ', 'p.lastName')),
$qb->expr()->literal($fullName.'%')
),
$qb->expr()->like(
$qb->expr()->concat('p.lastName', $qb->expr()->concat(' ', 'p.firstName')),
$qb->expr()->literal($fullName.'%')
)
),
$qb->expr()->eq('tp.trainer', '?1')
)
)
->groupBy('p.id')
->orderBy('p.lastName', 'ASC')
->orderBy('p.firstName', 'ASC')
->setParameter(1, $trainer);
return $qb->getQuery()->getResult();
}
}
當我運行它,Symfony2中引發以下錯誤消息:
[Syntax Error] line 0, col 123: Error: Expected StateFieldPathExpression | string | InputParameter | FunctionsReturningStrings | AggregateExpression, got ','
一看堆棧跟蹤,揭示了以下內容:
at QueryException ::syntaxError ('line 0, col 123: Error: Expected StateFieldPathExpression | string | InputParameter | FunctionsReturningStrings | AggregateExpression, got ','')
in D:\Work\vendor\doctrine\lib\Doctrine\ORM\Query\Parser.php at line 396 -+
at Parser ->syntaxError ('StateFieldPathExpression | string | InputParameter | FunctionsReturningStrings | AggregateExpression')
in D:\Work\vendor\doctrine\lib\Doctrine\ORM\Query\Parser.php at line 2391 -+
at Parser ->StringPrimary()
in D:\Work\vendor\doctrine\lib\Doctrine\ORM\Query\AST\Functions\ConcatFunction.php at line 60 -+
at ConcatFunction ->parse (object(Parser))
in D:\Work\vendor\doctrine\lib\Doctrine\ORM\Query\Parser.php at line 2852 -
從上面,我明白這個問題與concat helper函數有關,而函數expec列舉的輸入,但不知何故(?)收到一個逗號(,)。
上面的代碼有什麼問題?搜尋小時數不能解決問題。
謝謝你的幫助!
事實上它的工作。 [Doctrine documentation](http://docs.doctrine-project.org/projects/doctrine-orm/en/2.0.x/reference/query-builder.html#the-expr-class),它提供了一個例子這是不準確的。 –