public function addCartLine(CartLineInterface $cartLine)
    {
        if (!$this->cartLines->contains($cartLine)) {
            $this->cartLines->add($cartLine);
        }

        return $this;
    }
public function addCartLine(CartLineInterface $cartLine)
    {
        if (!$this->cartLines->contains($cartLine)) {
            $this->cartLines->add($cartLine);
        }

        return $this;
    }
public function addCartLine ( CartLineInterface $ cartLine ) { if ( ! $ this -> cartLines -> contains ( $ cartLine ) ) { $ this -> cartLines -> add ( $ cartLine ) ; } return $ this ; }
Add Cart Line.

@param CartLineInterface $cartLine Cart line

@return $this Self object
Add Cart Line .