Ctrl WarrantyCard

public function ajax_list()
{
    $list = $this->Warranty_card_model->get_datatables();
    $data = array();

    $no_nota = '';

    foreach ($list as $data_pelunasan) {
        $noHp   = hp($data_pelunasan->no_hp);

        if ($this->agent->is_mobile()) {
            $linkWhatsapp   = 'https://api.whatsapp.com/send?phone=' . $noHp . '&text=';
        } else {
            $linkWhatsapp      = 'https://web.whatsapp.com/send?phone=' . $noHp . '&text=';
        }

        $pesan = '';

        $row = array();

        if ($no_nota != $data_pelunasan->no_nota_pelunasan) {
            $no_nota = $data_pelunasan->no_nota_pelunasan;

            $row[] = '<p style="text-align: center"><a href="' . base_url('pelunasan/detail/') . $data_pelunasan->id_pelunasan . '">' . $data_pelunasan->no_nota_pelunasan . '</a></p>';
            $row[] = '<p style="text-align: center"><a href="' . base_url('spk/detail/') . $data_pelunasan->id_spk . '">' . $data_pelunasan->nota_spk . '</a></p>';
            $row[] = '<p style="text-align: center">' . $data_pelunasan->nama_customer . '</p>';
            $row[] = '<p style="text-align: center">' . $data_pelunasan->no_hp . '</p>';
        } else {
            $row[] = '';
            $row[] = '';
            $row[] = '';
            $row[] = '';
        }

        $row[] = '<p style="text-align: center">' . $data_pelunasan->nama_produk . '</p>';
        $row[] = '<p style="text-align: center">' . $data_pelunasan->valid_until . '</p>';
        $row[] = '<p style="text-align: center">' . $data_pelunasan->nama_produk . '</p>';

        $row[] = '
          <p style="text-align:center">
            <a class="btn btn-sm btn-success" href="' . $linkWhatsapp . $pesan . '" title="Kirim Invoice via WA" target="_blank"><i class="fa fa-whatsapp"></i></a>
          </p>';

        $data[] = $row;
    }

    $output = array(
        "draw" => $_POST['draw'],
        "recordsTotal" => $this->Warranty_card_model->count_all(),
        "recordsFiltered" => $this->Warranty_card_model->count_filtered(),
        "data" => $data
    );

    echo json_encode($output);
}