BaseEntity.php

<?php

namespace Mon\Site\BlogBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Class BaseEntity
 *
 * @ORM\MappedSuperclass
 * @ORM\HasLifecycleCallbacks
 */
class BaseEntity 
{
    /**
     * @ORM\Column(type="datetime", name="created_at")
     */
    private $createdAt;

    /**
     * Store the date when this entity was updated for the last time
     *
     * @ORM\Column(type="datetime", name="updated_at")
     */
    private $updatedAt;

    /**
     * @ORM\PrePersist
     */
    public function persist()
    {
        $this->createdAt = $this->updatedAt = new \DateTime("now");
    }

    /**
     * @ORM\PreUpdate
     */
    public function updated()
    {
        $this->updatedAt = new \DateTime("now");
    }

    /**
     * Set createdAt
     *
     * @param \DateTime $createdAt
     */
    public function setCreatedAt($createdAt)
    {
        $this->createdAt = $createdAt;
    }

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

    /**
     * Set updatedAt
     *
     * @param \DateTime $updatedAt
     */
    public function setUpdatedAt($updatedAt)
    {
        $this->updatedAt = $updatedAt;
    }

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

}