如何在Symfony中执行插入而不是更新？

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class YourEntity
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer")
     */
    private $id;

    // 其他属性和方法...
}

use Doctrine\ORM\EntityManagerInterface;

class YourController
{
    private $entityManager;

    public function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    // 其他方法...
}

public function insertAction()
{
    $entity = new YourEntity();
    // 设置实体的属性...

    $this->entityManager->persist($entity);
    $this->entityManager->flush();

    // 插入操作完成
}