ODM\MongoDB TreeListener does not support tree type: nested

[houssemeddinear]

i work with mongodb database , nested strategy for Tree dont work !

it show this exception : ODM\MongoDB TreeListener does not support tree type: nested

this is my service configuration

gedmo.listener.tree:
        class: Gedmo\Tree\TreeListener
        tags:
            # ODM MongoDb subscriber, where **default** is manager name
            - { name: doctrine_mongodb.odm.event_subscriber }
        calls:
            - [ setAnnotationReader, [ @annotation_reader ] ]

and this is my entity

<?php

namespace Application\MainBundle\Document;

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Symfony\Component\Validator\Constraints as Assert;
use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\Common\Collections\ArrayCollection;

/**
 * @ODM\Document(repositoryClass="Application\MainBundle\Document\CategoryRepository", collection="Categories")
 * @Gedmo\Tree(type="nested")
 */
class Category implements \Gedmo\Tree\Node
{
    use \Gedmo\Blameable\Traits\BlameableDocument;
    use \Gedmo\Timestampable\Traits\TimestampableDocument;

    /**
     * @var string 
     * @ODM\Id
     */
    protected $id;

    /**
     * @var string name
     * @ODM\String
     * @Assert\NotBlank
     * @Assert\Length(max = 255)
     * @Gedmo\TreePathSource
     * @Gedmo\Translatable
     */
    protected $name;

    /**
     * @var int 
     * @ODM\Int
     */
    protected $sortOrder;

    /**
     * @var boolean Активна ли категория
     * @ODM\Boolean
     */
    protected $isActive;

    /**
     * @var \Application\MainBundle\Document\Category Родительская категория
     * @ODM\ReferenceOne(targetDocument="\Application\MainBundle\Document\Category", nullable=true)
     * @Gedmo\TreeParent
     */
    protected $parent;

    /**
     * @Gedmo\TreeLeft
     * @ODM\Int
     */
    private $lft;

    /**
     * @Gedmo\TreeRight
     * @ODM\Int
     */
    private $rgt;

    /**
     * @Gedmo\TreeRoot
     * @ODM\Int(name="root", nullable=true)
     */
    private $root;

    /**
     *
     * @ODM\ReferenceMany(targetDocument="\Application\MainBundle\Document\Category", sort= {"lft" : "ASC"} )
     */
    private $children;

    /**
     * @var string path
     * @ODM\String
     * @Gedmo\TreePath(separator="|")
     */
    protected $path;

    /**
     * @var int level
     * @ODM\Int
     * @Gedmo\TreeLevel
     */
    protected $level;

    /**
     * @var \DateTime Время блокировки
     * @ODM\Date
     * @Gedmo\TreeLockTime
     */
    protected $lockTime;

     /**
     * @var int colonne
     * @ODM\Int
     */
    protected $column;

    /**
     * 
     * @return string
     */
    public function __toString()
    {
        $prefix   = ($this->level > 1)
            ? str_repeat('&nbsp;&nbsp;', $this->level)
            : '';

        return (string) html_entity_decode($prefix) . $this->name;
    }

    /**
     * 
     * @return string
     */
    public function getTreeName()
    {
        $prefix   = ($this->level > 1)
            ? str_repeat('&nbsp;&nbsp;', $this->level)
            : '';

        return (string) html_entity_decode($prefix) . $this->name;
    }

    public function __construct()
    {
        $this->children = new ArrayCollection();
    }

    /**
     * Get id
     * @return string $id
     */
    public function getId()
    {
        return $this->id;
    }

    function getLft() {
        return $this->lft;
    }

    function getRgt() {
        return $this->rgt;
    }

    function getRoot() {
        return $this->root;
    }

    function getChildren() {
        return $this->children;
    }

    function setLft($lft) {
        $this->lft = $lft;
        return $this;
    }

    function setRgt($rgt) {
        $this->rgt = $rgt;
        return $this;
    }

    function setRoot($root) {
        $this->root = $root;
        return $this;
    }

    function setChildren($children) {
        $this->children = $children;
        return $this;
    }

    /**
     * Set column
     * @param int $column
     * @return self
     */
    public function setColumn($column)
    {
        $this->column = $column;
        return $this;
    }

    /**
     * Get column
     * @return int $column
     */
    public function getColumn()
    {
        return $this->column;
    }

    /**
     * Set name
     * @param string $name
     * @return self
     */
    public function setName($name)
    {
        $this->name = $name;
        return $this;
    }

    /**
     * Get name
     * @return string $name
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set sortOrder
     * @param int $sortOrder
     * @return self
     */
    public function setSortOrder($sortOrder)
    {
        $this->sortOrder = $sortOrder;
        return $this;
    }

    /**
     * Get sortOrder
     * @return int $sortOrder
     */
    public function getSortOrder()
    {
        return $this->sortOrder;
    }

    /**
     * Set isActive
     * @param boolean $isActive
     * @return self
     */
    public function setIsActive($isActive)
    {
        $this->isActive = $isActive;
        return $this;
    }

    /**
     * Get isActive
     * @return boolean $isActive
     */
    public function getIsActive()
    {
        return $this->isActive;
    }

    /**
     * Set parent
     * @param \Application\MainBundle\Document\Category $parent
     * @return self
     */
    public function setParent($parent)
    {
        $this->parent = $parent;
        return $this;
    }

    /**
     * Get parent
     * @return \Application\MainBundle\Document\Category $parent
     */
    public function getParent()
    {
        return $this->parent;
    }

    /**
     * Remove parent
     * @return self
     */
    public function removeParent()
    {
        $this->parent = null;
        return $this;
    }

    /**
     * Set path
     * @param string $path
     * @return self
     */
    public function setPath($path)
    {
        $this->path = $path;
        return $this;
    }

    /**
     * Get path
     * @return string $path
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Set level
     * @param int $level
     * @return self
     */
    public function setLevel($level)
    {
        $this->level = $level;
        return $this;
    }

    /**
     * Get level
     * @return int $level
     */
    public function getLevel()
    {
        return $this->level;
    }

    /**
     * Set lockTime
     * @param \DateTime $lockTime
     * @return self
     */
    public function setLockTime($lockTime)
    {
        $this->lockTime = $lockTime;
        return $this;
    }

    /**
     * Get lockTime
     * @return \DateTime $lockTime
     */
    public function getLockTime()
    {
        return $this->lockTime;
    }

}

[sgasser]

For MongoDB only "Materialized Path strategy" is supported.

 * @Gedmo\Tree(type="materializedPath")

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