Cablemodem/src/CablemodemBundle/Entity/Node.php

<?php

namespace CablemodemBundle\Entity;

use Base\AdminBundle\Interfaces\PreRemoveInterface;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
use JMS\Serializer\Annotation as JMS;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Base\AdminBundle\Traits\TenancyIdTrait;
use Base\AdminBundle\Traits\TenancyIdTraitInterface;

/**
 * @ORM\Entity
 * @ORM\Table(uniqueConstraints={@ORM\UniqueConstraint(name="unique_idx", columns={"name","tenancy_id"})})
 *
 * @UniqueEntity(fields={"tenancyId","name"})
 */
class Node implements TenancyIdTraitInterface, PreRemoveInterface
{

    use TenancyIdTrait;

    /**
     * @ORM\Column(name="id", type="bigint", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    protected $id;

    /**
     * @ORM\Column(type="string", length=100)
     *
     * @Assert\NotNull
     */
    protected $name;

    /**
     * @ORM\ManyToOne(targetEntity="Node", inversedBy="childs")
     * @ORM\JoinColumn(onDelete="CASCADE")
     *
     * @JMS\MaxDepth(1)
     */
    protected $parent;

    /**
     * @ORM\OneToMany(targetEntity="Node", mappedBy="parent")
     *
     * @JMS\MaxDepth(1)
     */
    protected $childs;


    /**
     * Constructor
     */
    public function __construct()
    {
        $this->childs = new ArrayCollection;
    }

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

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

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

        return $this;
    }

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

    /**
     * @param Node $parent
     *
     * @return Node
     */
    public function setParent($parent = null)
    {
        $this->parent = $parent;

        return $this;
    }

    /**
     * @return Node
     */
    public function getParent()
    {
        return $this->parent;
    }

    /**
     * @param Node $childs
     *
     * @return Node
     */
    public function addChild($childs)
    {
        $this->childs[] = $childs;

        return $this;
    }

    /**
     * @param Node $childs
     */
    public function removeChild(Node $childs)
    {
        $this->childs->removeElement($childs);
    }

    /**
     * @return Doctrine\Common\Collections\Collection
     */
    public function getChilds()
    {
        return $this->childs;
    }

    /**
     * @return array
     */
    public function getEntitiesForRemove()
    {
        $entities = [];
        if ($this->childs->count() != 0) {
            $entities['childs'] = $this->childs;
        }

        return $entities;
    }

}