public function addDealerBrand(ChildDealerBrand $l)
    {
        if ($this->collDealerBrands === null) {
            $this->initDealerBrands();
            $this->collDealerBrandsPartial = true;
        }

        if (!in_array($l, $this->collDealerBrands->getArrayCopy(), true)) { // only add it if the **same** object is not already associated
            $this->doAddDealerBrand($l);
        }

        return $this;
    }