我正在为Symfony 2中与ORM的教义不一致的ManyToMany关系而苦苦挣扎

Question

您好，提前感谢任何会尝试提供帮助的人。

我对Symfony和教义很陌生，我无法弄清楚为什么我的票证实体在没有ManyToMany Realtionship的情况下存储。我非常努力，做了几天来我发现的任何事情，但最终我需要帮助。

我们到了

票

<pre>
    namespace AppBundleEntity;
    use DoctrineORMMapping as ORM;
    use DoctrineCommonCollectionsArrayCollection;
    use DoctrineCommonCollectionsCollection;
    use AppBundleEntityComputer; 
    /**
     * @ORMEntity
     * @ORMTable(name="tickets")
     */
    class Ticket {
        /**
         * @ORMId
         * @ORMColumn(type="integer")
         * @ORMGeneratedValue(strategy="AUTO")
         */
        protected $id;
        /**
         * @ORMColumn(type="integer")
         */
        protected $creator;
        /**
         * @ORMColumn(type="integer")
         */
        protected $owner;
        /**
         * @ORMManyToOne(targetEntity="Category", inversedBy="tickets")
         * @ORMJoinColumn(name="category_id", referencedColumnName="id")
         */
        private $category;
        /**
         * @ORMManyToOne(targetEntity="Type", inversedBy="tickets")
         * @ORMJoinColumn(name="type_id", referencedColumnName="id")
         */
        protected $type;
        /**
         * @ORMColumn(type="string")
         */
        protected $subject;
        /**
         * @ORMManyToMany(targetEntity="Computer", inversedBy="tickets", cascade={"persist"})
         * @ORMJoinTable(name="inventory_computer_join",
         *      joinColumns={@ORMJoinColumn(name="ticket_id", referencedColumnName="id")},
         *      inverseJoinColumns={@ORMJoinColumn(name="computer_id", referencedColumnName="id")}
         *)
         */
        protected $computer;
    [...]
     /**
         * Add computer
         *
         * @param AppBundleEntityComputer $computer
         *
         * @return Ticket
         */
        public function addComputer(AppBundleEntityComputer $computer)
        {
            $this->computers[] = $computer;
            return $this;
        }
        /**
         * Remove computer
         * @param AppBundleEntityComputer $computer
         */
        public function removeComputer(AppBundleEntityComputer $computer)
        {
            $this->computers->removeElement($computer);
        }
        /**
         * Get computers
         * @return DoctrineCommonCollectionsCollection
         */
        public function getComputers()
        {
            return $this->computers;
        }
    }
</pre>

计算机

<pre>
    namespace AppBundleEntity;
    use DoctrineORMMapping as ORM;
    use DoctrineCommonCollectionsArrayCollection;
    use DoctrineCommonCollectionsCollection;
    use AppBundleEntityTicket;
    /**
     * @ORMEntity
     * @ORMTable(name="inventory_computer")
     */
    class Computer
    {
        /**
         * @ORMId
         * @ORMColumn(type="integer")
         * @ORMGeneratedValue(strategy="AUTO")
         */
        protected $id;
        /**
         * @ORMManyToMany(targetEntity="Ticket", mappedBy="computer")
         */
        protected $tickets;
        [...]
      /**
         * Add ticket
         *
         * @param AppBundleEntityTicket $ticket
         *
         * @return Computer
         */
        public function addTicket(AppBundleEntityTicket $ticket)
        {
            $this->tickets[] = $ticket;
            return $this;
        }
</pre>

控制器

<pre>
    /**
         * @Route("admint/createTicket", name="AdminTicketErstellen")
         */
        public function AdminCreateTicketAction(Request $request) {
            $ticket = new Ticket;
            $form = $this->createForm(TicketType::class, $ticket, array(
                'method' => 'GET'
            ));
            $form->handleRequest($request);
            if ($form->isSubmitted()) {
                $em = $this->getDoctrine()->getManager();
                $em->persist($ticket);
                $em->flush();
                return $this->redirectToRoute('measure_servers');
            }
            return $this->render( 'sysadmin/pages/AdminCreateTicket.html.twig', array(
                    'ticket' => $form->createView(),
                )
            );
        }
</pre>

Answer 1

如果你想要存储 ManyToMany 试试;

第一：

将protected $commputer;更改为在工单.php实体protected $computers。因为，您在addComputer（）或removeComputer（）中使用$this->计算机。

第二：* @ORMManyToMany(targetEntity="Ticket", mappedBy="computer")在计算机.php实体mappedBy="computers"。

您可以使用计算机存储票证，请在控制器上尝试： $ticket = 新票证（）; $computer = 新计算机（）;

$ticket->setCreator(4);
$ticket->setOwner(3);
$computer->addTicket($ticket);
$ticket->addComputer($computer);
$em = $this->getDoctrine()->getManager();
$em->persist($computer);
$em->persist($ticket);
$em->flush();