Dropdown dari database di modal bootstrap

maaf newbie mau bertanya kpd suhu2 disini, ane mau buat dropdown di modal bootstrap yang mengambil dari database tetapi selalu error undefined variable

model : public function getManufacturer(){ $hasil=$this->db->get('ac_manufacturer'); return $hasil; }

public function simpan_product_all1($product_code,$manufacturer_id,$category_id,$sub_category_id,$name,$weight,$description,$link_tokopedia,$link_bukalapak,$link_shopee,$status_id,$quantity,$price,$aktif){ $hasil=$this->db->query("INSERT INTO ac_product ( product_code,status_id,quantity,price) VALUES ($product_code,$manufacturer_id,$category_id,$sub_category_id,$name,$weight,$description,$link_tokopedia,$link_bukalapak,$link_shopee,$status_id,$quantity,$price,$aktif)"); return $hasil;

}

controller : public function simpan_product_all(){ $product=$this->Product_model; $data["manufacturer"]=$this->Product_model->getManufacturer(); $product->simpan_product_all1(); $this->load->view("ngadimin/product",$data); }

view :

Pabrikan

-- Pilih --manufacturer_name;?>

terima kasih.