php - Symfony 3 orphanRemoval=true doesn't delete removed records from form -

i need t ocreate bus adding form. bus can have many amenities , that's why created onetomany relationship between bus , bus amenities.

what want achieve let doctrine remove (or update) data onetomany table without looping or doing particular in controller. read somewhere can use orphanremoval=true annotation on entity take care of reason doesn't work...

i can update existing , add new amenities (new data) can't delete records removed edit form.

can done using orphanremoval=true or know problem code:

here code:

bus entity (shorted version):

/**      * @orm\onetomany(targetentity="busvehiclesamenities", mappedby="bus", cascade={"persist", "remove"}, orphanremoval=true)      */     private $busvehiclesamenities;      public function __construct()     {          $this->busvehiclesamenities = new arraycollection();     }        /**      * id      *      * @return integer      */     public function getid()     {         return $this->id;     }      /**      * add busvehiclesamenities      *      * @param \appbundle\entity\busvehiclesamenities busvehiclesamenities      * @return busvehicles      */     public function addbusvehiclesamenities(busvehiclesamenities $busvehiclesamenities)     {         /* if ($this->busvehiclesamenities->contains($busvehiclesamenities)) {             return;         }*/         $this->busvehiclesamenities->add($busvehiclesamenities);         $busvehiclesamenities->addbus($this);          return $this;     }      /**      * remove busvehiclesamenities      *      * @param \appbundle\entity\busvehiclesamenities $busvehiclesamenities      */     public function removebusvehiclesamenities(busvehiclesamenities $busvehiclesamenities)     {         $this->busvehiclesamenities->removeelement($busvehiclesamenities);         $busvehiclesamenities->addbus(null);       }     /**      * busvehiclesamenities      *      * @return arraycollection      */     public function getbusvehiclesamenities()     {         return $this->busvehiclesamenities;      }     /**      * set busvehiclesamenities      *      * @return arraycollection      */     public function setbusvehiclesamenities($busvehiclesamenities)     {         $this->busvehiclesamenities = $busvehiclesamenities;      } 

amenities entity:

private $bus; /**  *  * @orm\manytoone(targetentity="amenities", inversedby="amenities")  * @orm\joincolumn(name="amenities_id", referencedcolumnname="id")  *  */ private $amenities;  /**  * @var float  * @orm\column(name="price", type="float", scale=2)  */ protected $price;  public function __construct() { }   /**  * id  *  * @return integer  */ public function getid() {     return $this->id; }   /**  * busid  *  * @return integer  */ public function getbus() {     return $this->bus; }  /**  * add bus  *  * @param \appbundle\entity\busvehicles  *  * @return busvehiclesamenities  */ public function addbus(busvehicles $bus) {      $this->bus = $bus;      //$bus->setbusvehiclesamenities($this);       return $this; }  

controller:

 public function editaction($id, request $request)     {         $busrepository = $this->getdoctrine()->getrepository('appbundle:busvehicles');         $bus = $busrepository->find($id);         $editform = $this->createform(busvehiclestype::class, $bus);         $editform->handlerequest($request);         if ($editform->issubmitted() && $editform->isvalid()) {              $em = $this->getdoctrine()->getmanager();              $entity = $editform->getdata();             dump ($entity);             $em->persist($entity); //this should take care of saving manytomany records              $em->flush();              // adding flash message our user              $this->addflash('success', 'new vehicle added');               //  return $this->redirecttoroute('bus_add');          }         return [             'form' => $editform->createview(),         ];     } 

i'm having same problem looking @ code notice you're calling

$busvehiclesamenities->addbus(null);  

instead of

$busvehiclesamenities->setbus(null);