php - Symfony Doctrine: Remove all ManyToMany relations -

i have manytomany relationship between 2 entities (clientproject & tour) working except 1 case. when want clear relations between entities, doesn't work , database not updated accordingly.

clientproject.php

/**  * @orm\manytomany(targetentity="tour", inversedby="clientprojects")  * @orm\jointable(  *  name="client_projects_tour_items",  *  joincolumns={  *      @orm\joincolumn(name="client_project_id", referencedcolumnname="id")  *  },  *  inversejoincolumns={  *      @orm\joincolumn(name="tour_id", referencedcolumnname="id")  *  }  *  )  */  protected $touritems;   public function removetouritem(\sharedbundle\entity\tour $touritem) {     $this->touritems->removeelement($touritem); } 

tour.php

public function removeclientproject(\sharedbundle\entity\clientproject $clientproject) {     $this->clientprojects->removeelement($clientproject); } 

working example:

1. before update:
   • tour 1 / clientproject 3
   • tour 1 / clientproject 4
2. action: remove relation between tour 1 , clientproject 4
3. after update:
   • tour 1 / clientproject 3

failing example:

1. before update:
   • tour 1 / clientproject 3
2. action: remove relation between tour 1 , clientproject 3
3. after update:
   • tour 1 / clientproject 3

controller action

public function editclientprojectaction($id, request $request) { if (!$request->isxmlhttprequest()) {    return $this->redirecttoroute('contact'); }  $clientproject = $this->getdoctrine()->getrepository(clientproject::class)->find($id); if(!$clientproject) {     return new jsonresponse(array('redirect' => $this->generateurl('contacts'))); }  $form = $this->createform(clientprojectformtype::class, $clientproject, array(     'action' => $this->generateurl('edit-client-project', array('id' => $id)) )); $form->setdata($clientproject); if ($request->ismethod('post')) {     $form->submit($request->request->get($form->getname()), false);     if($form->issubmitted() && $form->isvalid()) {         $em = $this->getdoctrine()->getmanager();         $em->persist($clientproject);         $em->flush();           return new jsonresponse(array('reloaddatatable' => 'client_project_datatable'));     } else {         return new jsonresponse(array('reload' => true));     } }  return $this->render('@appbundle/client-projects/edit-client-project.html.twig', [     'form' => $form->createview(), ]); } 

in order make remove work, think need add code remove methods:

# entity/clientproject.php /**  * remove touritem  *  * @param \sharedbundle\entity\tour $touritem  */ public function removetouritem(\sharedbundle\entity\tour $touritem) {     if (!$this->touritems->contains($touritem)) {         return;     }     $this->touritems->removeelement($touritem);     $clientproject->removetouritem($this); }  # entity/tour.php /**  * remove clientproject  *  * @param \sharedbundle\entity\clientproject $clientproject  */ public function removeclientproject(\sharedbundle\entity\clientproject $clientproject) {     if (!$this->clientproject->contains($clientproject)) {         return;     }     $this->clientprojects->removeelement($clientproject);     $touritem->removeclientproject($this); } 

also, in tour.php file need add annotation:

cascade={"persist", "remove"} 

when set relation.