Subclass from Mapped superclass example

gistfile1.aw

<?php

namespace UKWM\Bundle\DictionaryBundle\Entity;

use \Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="dictionary_colours", indexes={
 *      @ORM\Index(name="text_idx", columns={"text"})
 * })
 */
class Colour extends Definition
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;
    
    /**
     * @ORM\Column(type="string", length="255")
     */
    protected $text;

    /**
     * @ORM\ManyToOne(targetEntity="Definition", inversedBy="alternatives")
     * @ORM\JoinColumn(name="definition_id", referencedColumnName="id")
     */
    protected $alternatives;
}