學說爲了通過使未捕獲的例外

Question

下面的代碼是使未捕獲的例外：

類視覺

echo(ProdutoController::listaProdutoVitrineFiltroOrdenadoPeloMenor("TV", "nome", "precodevenda", "ASC")); 

類控制器

$produtos = daogenerico::findByStringOrderBy("Produto", $tipopesquisa, $nome, $parametro, $ordem); 

DAO

public static function findByStringOrderBy($classname, $field, $string, $order, $orderparam){ 
    $bd = new bd(); 
    $bd->conectar(); 
    $result = $bd->getEntityManager()->getRepository($classname)->createQueryBuilder('e') 
    ->where('e.'.$field.' LIKE :'.$field) 
    ->setParameter($field, '%'.$string.'%') 
    ->orderBy($order, $orderparam) 
    ->getQuery() 
    ->getResult(); 
    return $result; 
} 

錯誤：

致命錯誤：在C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \中有消息'SELECT e FROM Produto e WHERE e.nome LIKE：nome ORDER BY precodevenda ASC'的未捕獲異常'Doctrine \ ORM \ Query \ QueryException' doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ QueryException.php：41堆棧跟蹤：＃0 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ Parser.php（483 ）：Doctrine \ ORM \ Query \ QueryException :: dqlError（'SELECT e FROM P ...'）＃1 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ Parser。 php（708）：Doctrine \ ORM \ Query \ Parser-> semanticalError（'precodevenda'...'，Array）＃2 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ Parser.php（283）：Doctrine \ ORM \ Query \ Parser-> processDeferredResultVariables（）＃3 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ Parser.php 351）：Doctrine \ ORM \ Query \ Parser-> getAST（）＃4 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query.php（281）：Doctrine \ ORM \ Query \ Parser-> parse（）＃5 C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctri在C：\ xampp \ htdocs \ TrabalhoA2 \ vendor \ doctrine \ orm \ lib \ Doctrine \ ORM \ Query \ QueryException.php on line 63

有人可以幫忙嗎？

Answer 1

看起來像實體別名'e'在訂單列'precodevenda'之前缺少。 嘗試更換：

->orderBy($order, $orderparam) 

與

->orderBy('e.'.$order, $orderparam)