ajax search

//ajax jquery search om
$("#button-box-1").click(function(event) {
    //alert();
    event.preventDefault();
    //merk
    var autocomplete = $(".autocomplete").val();
    //tipe
    var autocomplete1 = $(".autocomplete1").val();
    $.ajax({
        type: "POST",
        url:site+'/welcome/searchproduct',
        dataType: 'json',
        data: {
            autocomplete: autocomplete,
            autocomplete1: autocomplete1
         },
        success: function(res) {
        if (res)
            {
               $(".box-2").show()
            }
         }
    });
});




<!--controller-->
public function searchproduct()
    {
        //for post caming from
        $autocomplete=$this->input->post('brand');

        $autocomplete1=$this->input->post('tipe');

        $this->db->select('*');
        $this->db->from('li_product_post a');
        $this->db->join('li_brand b', 'b.id_brand=a.id_brand', 'left');
        $this->db->join('li_tipe c', 'c.id_tipe=a.id_tipe', 'left');
                //or where
        $this->db->where('name_brand', $autocomplete);
        $this->db->or_where('name_tipe', $autocomplete1);

        $query = $this->db->get();

        foreach($query->result() as $row)
        {
            $arr['query'] = $keyword;
            $arr['suggestions'][] = array(
                'value' =>$row->name_tipe,
                'id_brand'  =>$row->id_brand,
                'id_tipe'   =>$row->id_tipe,
                'product_harga' =>$row->product_harga,
                'product_toko'  =>$row->product_toko,
                'product_status'    =>$row->product_status,
            );

        }
        echo json_encode($arr);
    }