Entity State for Symfony Project

State.php

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Gedmo\Mapping\Annotation as Gedmo;


/**
 * AppBundle\Entity\State
 *
 * @ORM\Table(name="tb_state")
 * @ORM\Entity(repositoryClass="AppBundle\Entity\StateRepository")
 */

 class State {
     
     /**
     * @var integer $id
     *
     * @ORM\Id
     * @ORM\Column(type="string")
     * @ORM\GeneratedValue(strategy="NONE")
     */
     
    protected $id;


    /**
     * @ORM\Column(type="string")
     * @Assert\NotBlank()
     * @Assert\Length( max = "100" )
     */
    
    protected $name;
    
    /**
     * @ORM\ManyToOne(targetEntity="Country", inversedBy="states")
     * @ORM\JoinColumn(name="country_id", referencedColumnName="id")
     */
    
    protected $country;
    
    /**
     * @ORM\OneToMany(targetEntity="City", mappedBy="state", cascade={"persist", "remove"})
     */
    Private $cities;



    public function __toString() {
        
        return $this->name;
        
    }
    /**
     * Constructor
     */
    public function __construct()
    {
        $this->cities = new \Doctrine\Common\Collections\ArrayCollection();
    }

    /**
     * Set id
     *
     * @param string $id
     * @return State
     */
    public function setId($id)
    {
        $this->id = $id;

        return $this;
    }

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

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

        return $this;
    }

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

     /**
      * Set country
      *
      * @param Country $country
      * @return State
      */
    public function setCountry(Country $country = null)
    {
        $this->country = $country;

        return $this;
    }

    /**
     * Get country
     *
     * @return Country
     */
    public function getCountry()
    {
        return $this->country;
    }

    /**
     * Add cities
     *
     * @param City $cities
     * @return State
     */
    public function addCity(City $cities)
    {
        $this->cities[] = $cities;

        return $this;
    }

    /**
     * Remove cities
     *
     * @param City $cities
     */
    public function removeCity(City $cities)
    {
        $this->cities->removeElement($cities);
    }

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