public function initM2Ps($overrideExisting = true)
    {
        if (null !== $this->collM2Ps && !$overrideExisting) {
            return;
        }

        $collectionClassName = M2PTableMap::getTableMap()->getCollectionClassName();

        $this->collM2Ps = new $collectionClassName;
        $this->collM2Ps->setModel('\Attogram\SharedMedia\Orm\M2P');
    }