使用Symfony更新与Doctrine有关的多方关系的集合

Question

I have 2 entities related with ManyToMany : Routage and Contact.

Entity Routage :

/**
 * @ORM\ManyToMany(targetEntity="AppBundle\Entity\Bdd\Contact", inversedBy="routages", cascade={"persist"})
 * @ORM\JoinTable(name="routages_contacts")
 */
private $contacts;

Entity Contact :

/**
 * @ORM\ManyToMany(targetEntity="AppBundle\Entity\Routage\Routage", mappedBy="contacts")
 */
private $routages;

But when I add some Contact to one Routage in his Collection, it creates X queries. But I want limit the number of queries.

Here my controller part :

foreach($Abonnes as $Contact){
    $Routage->addContact($Contact);
    $this->getDoctrine()->getManager()->persist($Routage);
}
$this->getDoctrine()->getManager()->flush();

Answer 1

the line

$this->getDoctrine()->getManager()->persist($Routage);

should be out of the foreach loop so your code should look like this :

foreach($Abonnes as $Contact){
    $Routage->addContact($Contact);

}
$this->getDoctrine()->getManager()->persist($Routage);
$this->getDoctrine()->getManager()->flush();