Variant.php

<?php

namespace \Acme\Bundle\ExampleBundle\Entity;

use \Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="product_variants", indexes={
 *      @ORM\index(name="variant_name_idx", columns={"name"})
 * })
 */
class Variant
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;
    
    /**
     * @ORM\Column(type="string", length=255, unique=true)
     */
    protected $name;
    
    /**
     * @ORM\Column(type="string", length=255)
     */
    protected $nameCanonical;
    
    /**
     * @ORM\Column(type="string", length=255, unique=true)
     */
    protected $slug;
    
    /**
     * @ORM\Column(type="datetime")
     */
    protected $createdAt;
    
    /**
     * @ORM\Column(type="datetime")
     */
    protected $updatedAt;
    
    /**
     * @ORM\ManyToMany(targetEntity="Attribute")
     * @ORM\JoinTable(name="product_variant_attributes", joinColumns={
     *      @ORM\JoinColumn(name="variant_id, referencedColumnName="id")
     * }, inverseJoinColumns={
     *      @ORM\JoinColumn(name="attribute_id", referencedColumnName="id")
     * })
     */
    protected $attributes;
    
    public function __construct()
    {
        $this->createdAt = new \DateTime();
        $this->updatedAt = new \DateTime();
    }
}