学说 - 有条件的地方

Question

我的Laravel控制器中有这个方法：

public function getUserOrders($userId) :array{    
    $results = $this->_em->createQueryBuilder()
        ->select('Orders.orderItemCount')
        ->from($this->entityClass, 'Orders')
        ->Where("Orders.orderItemCount > '0'")
        ->andWhere("Orders.orderTotalPrice > '0'")
        ->andWhere("Orders.usersUserId = '{$userId}'")
        ->getQuery()->getArrayResult();

    return $results;
}

我想更改$ userId可选的方法，因此在这种情况下不需要最后一个条件：

public function getUserOrders($userId = NULL) :array{    
    $results = $this->_em->createQueryBuilder()
        ->select('Orders.orderItemCount')
        ->from($this->entityClass, 'Orders')
        ->Where("Orders.orderItemCount > '0'")
        ->andWhere("Orders.orderTotalPrice > '0'")
        if (!is_null($userId))
           ->andWhere("Orders.usersUserId = '{$userId}'")
        ->getQuery()->getArrayResult();

    return $results;
}

我试图弄清楚实现这一目标的最佳方法是什么。有什么建议吗？

Answer 1

试试这个

public function getUserOrders($userId = NULL) :array{    
$results = $this->_em->createQueryBuilder()
    ->select('Orders.orderItemCount')
    ->from($this->entityClass, 'Orders')
    ->Where("Orders.orderItemCount > '0'")
    ->andWhere("Orders.orderTotalPrice > '0'");
    if (!is_null($userId)){
       $results->andWhere("Orders.usersUserId" = $userId);
    }
    $results->getQuery()->getArrayResult();

return $results;
}