Entity/Customer.php
public function addAd(\Miky\Bundle\AdBundle\Entity\Ad $ad)
    {
        $this->ads[] = $ad;

        return $this;
    }
public function addAd(\Miky\Bundle\AdBundle\Entity\Ad $ad)
    {
        $this->ads[] = $ad;

        return $this;
    }
Add ad

@param \Miky\Bundle\AdBundle\Entity\Ad $ad

@return Customer