在 codeigniter 3 中使用 MPDF 打印分页数据

Question

我在将数据从标签选择传递到控制器时遇到问题。我尝试了很多次来修复它。 我只想将分页数据打印成 pdf 文件。

这里是代码控制器：

public function process_pdf(){
    $limit = $this->input->get('per_page') ? $this->input->get('per_page') : 5;
    $page = $this->uri->segment(3) ? $this->uri->segment(3) : 1;
    // $submit = $this->input->get('submit'); 
    // if ($submit) {
        $this->generate_pdf($page, $limit); 
    // }
}

public function generate_pdf($page, $limit) {
    $stylesheet = file_get_contents('assets/css/bootstrap-theme.css');
    //$limit = $this->input->get('page') ? $this->input->get('page') : 5;
    //$page = $this->session->userdata('current_page') ? $this->session->userdata('current_page') : 1;
    $data ['limit'] = $limit;
    $data ['page'] = $page;
    $data ['result'] = $this->MPendapatan->current_page_pdf($limit, $page);
    $html = $this->load->view('pdf_view', $data, true);

    // Set header agar respons berupa PDF
    header('Content-Type: application/pdf');
    header('Content-Disposition: inline; filename="laporan.pdf"');

    $mpdf = new \Mpdf\Mpdf();
    $mpdf->WriteHTML($stylesheet, 1);
    $mpdf->writeHTML($html);
    $mpdf->output();
}

这是视图代码：

        <h4>Pendapatan Rental Mobil</h4>
        <?php $limit = 0;?>
        <div class="row">
           <div class=" col-xs-0 col-xs-offset-0">
              <select id="per_page_pendapatan">
                 <option value="5"<?php echo ($this->input->get('per_page') == 5 || $limit == 5) ? 'selected' : ''; ?>>5</option>
                 <option value="10" <?php echo ($this->input->get('per_page') == 10 || $limit == 10) ? 'selected' : ''; ?> >10</option>
                 <option value="25" <?php echo ($this->input->get('per_page') == 25 || $limit == 25 ) ? 'selected' : ''; ?>>25</option>
                 <option value="50" <?php echo ($this->input->get('per_page') == 50  || $limit == 50) ? 'selected' : ''; ?>>50</option>
                 <option value="100" <?php echo ($this->input->get('per_page') == 100 || $limit == 100) ? 'selected' : ''; ?>>100</option>
              </select>
           </div>
           <div class=" col-xs-11 col-xs-offset-11">
              <!-- <form action="Pendapatan/process_pdf" method="GET" target="_blank">
                 <div class=" col-xs-11">
                    <input type="submit" class="btn btn-primary" name="print" id="printButton">
                 </div>
              </form> -->
              <a href="<?php echo site_url(); ?>/Pendapatan/process_pdf" target="_blank"> <button class=" btn btn-primary" id="printButton">Print</button></a>
           </div>
        </div>
        <br>
<div class="rows">
    <div class=" col-md-12" id="dataContainer">
    <?php if ($result) : ?>
    <?php $total_sewa = 0; ?>
    <?php $total_denda = 0; ?>
    <?php $total_pembayaran = 0; ?>
    <?php
        // Dapatkan nomor halaman saat ini dari segmen URL atau set sebagai 1 jika tidak ada
        $halaman_sekarang = $this->uri->segment(3) ? $this->uri->segment(3) : 1;
        // Dapatkan nilai per_page dari segmen URL atau set sebagai 5 jika tidak ada
        $selected_limit = $this->input->get('per_page') ? $this->input->get('per_page') : 5;
        // Hitung nomor awal untuk halaman saat ini
        $nomor_awal = ($halaman_sekarang - 1) * $selected_limit + 1;
    ?>
    <table class="table table-bordered">
        <thead>
            <tr>
                <th>No.</th>
                <th>Nama Pelanggan</th>
                <th>Tanggal Pinjam</th>
                <th>Lama Pinjam</th>
                <th>Tanggal Pengembalian</th>
                <th>Kelebihan Sewa</th>
                <th>Sewa Pembayaran</th>
                <th>Denda</th>
                <th>Total Pembayaran</th>
            </tr>
        </thead>
        <tbody>
            <?php
                $i = $nomor_awal;
            ?>
            <?php foreach ($result as $row) : ?>
                <tr>
                    <td><?php echo $i; ?></td>
                    <td><?php echo $row->nama_pelanggan ?></td>
                    <td><?php echo $row->tanggal_pinjam ?></td>
                    <td><?php echo $row->lama_pinjam ?></td>
                    <td><?php echo $row->tanggal_kembali ?></td>
                    <td><?php echo $row->total_keterlambatan_pengembalian ?></td>
                    <td><?php echo "Rp.". number_format($row->total_pembayaran , 0, ',', '.') ?></td>
                    <td><?php echo "Rp.". number_format($row->denda, 0, ',', '.')  ?></td>
                    <td><?php echo "Rp.". number_format($row->sub_total_pembayaran, 0, ',', '.') ?></td>
                </tr>
                <?php $total_sewa += $row->total_pembayaran; ?>
                <?php $total_denda += $row->denda; ?>
                <?php $total_pembayaran += $row->sub_total_pembayaran; ?>
            <?php $i++; ?>
            <?php endforeach ?>
            <tr>
                <td colspan="6" style="text-align: right;"><strong>Total:</strong></td>
                <td><?php echo "Rp.". number_format($total_sewa, 0, ',', '.') ?></td>
                <td><?php echo "Rp.". number_format($total_denda, 0, ',', '.') ?></td>
                <td><?php echo "Rp.". number_format($total_pembayaran, 0, ',', '.') ?></td>
            </tr>
        </tbody>
    </table>
    <p><?php echo $links; ?></p>
<?php else : ?>
    <br>
    Tidak ada data
<?php endif ?>
           </div>
        </div>
    </div>
</div>
        <script>
            //print ke pdf
            $("#printButton").click(function () {
                // Ambil select tag saat ini
                var limit = $("#per_page_pendapatan").val();
                // Ambil nomor halaman dari URI saat ini
                var page = <?php echo $this->uri->segment(3) ? $this->uri->segment(3) : 1; ?>;

                // Kirim permintaan AJAX ke controller
                $.ajax({
                    type: "GET",
                    url: "<?php echo site_url(); ?>/Pendapatan/process_pdf/" + limit,
                    data: { "page": page }, // Kirim data submit agar metode generate_pdf dijalankan
                    success: function (response) {
                    // Tanggapi respons jika diperlukan (optional)
                    // Misalnya, tampilkan pesan sukses atau sebagainya
                    console.log("PDF berhasil dicetak!");
                    },
                    error: function (xhr, status, error) {
                        // Tanggapi jika terjadi kesalahan saat melakukan permintaan AJAX
                        console.log("Terjadi kesalahan: " + error);
                    },
                });
            });
        </script>
    </body>
</html>

当我更改标签时，从此代码中选择：

<select id="per_page_pendapatan">
                 <option value="5"<?php echo ($this->input->get('per_page') == 5 || $limit == 5) ? 'selected' : ''; ?>>5</option>
                 <option value="10" <?php echo ($this->input->get('per_page') == 10 || $limit == 10) ? 'selected' : ''; ?> >10</option>
                 <option value="25" <?php echo ($this->input->get('per_page') == 25 || $limit == 25 ) ? 'selected' : ''; ?>>25</option>
                 <option value="50" <?php echo ($this->input->get('per_page') == 50  || $limit == 50) ? 'selected' : ''; ?>>50</option>
                 <option value="100" <?php echo ($this->input->get('per_page') == 100 || $limit == 100) ? 'selected' : ''; ?>>100</option>
              </select>

它将更改表格分页中的数据。

如果您在此处看到代码按钮

<div class=" col-xs-11 col-xs-offset-11">
              <!-- <form action="Pendapatan/process_pdf" method="GET" target="_blank">
                 <div class=" col-xs-11">
                    <input type="submit" class="btn btn-primary" name="print" id="printButton">
                 </div>
              </form> -->
              <a href="<?php echo site_url(); ?>/Pendapatan/process_pdf" target="_blank"> <button class=" btn btn-primary" id="printButton">Print</button></a>
           </div>

按钮将激活ajax将数据发送到控制器中的方法，这里是ajax代码：

$("#printButton").click(function () {
                // Ambil select tag saat ini
                var limit = $("#per_page_pendapatan").val();
                // Ambil nomor halaman dari URI saat ini
                var page = <?php echo $this->uri->segment(3) ? $this->uri->segment(3) : 1; ?>;

                // Kirim permintaan AJAX ke controller
                $.ajax({
                    type: "GET",
                    url: "<?php echo site_url(); ?>/Pendapatan/process_pdf/" + limit,
                    data: { "page": page }, // Kirim data submit agar metode generate_pdf dijalankan
                    success: function (response) {
                    // Tanggapi respons jika diperlukan (optional)
                    // Misalnya, tampilkan pesan sukses atau sebagainya
                    console.log("PDF berhasil dicetak!");
                    },
                    error: function (xhr, status, error) {
                        // Tanggapi jika terjadi kesalahan saat melakukan permintaan AJAX
                        console.log("Terjadi kesalahan: " + error);
                    },
                });
            });

这是代码控制器：

public function process_pdf(){
        $limit = $this->input->get('per_page') ? $this->input->get('per_page') : 5;
        $page = $this->uri->segment(3) ? $this->uri->segment(3) : 1;
        // $submit = $this->input->get('submit'); 
        // if ($submit) {
            $this->generate_pdf($page, $limit); 
        // }
    }

然后将发送到此处的方法以加载视图以显示 pdf 文件：

public function generate_pdf($page, $limit) {
        $stylesheet = file_get_contents('assets/css/bootstrap-theme.css');
        //$limit = $this->input->get('page') ? $this->input->get('page') : 5;
        //$page = $this->session->userdata('current_page') ? $this->session->userdata('current_page') : 1;
        $data ['limit'] = $limit;
        $data ['page'] = $page;
        $data ['result'] = $this->MPendapatan->current_page_pdf($limit, $page);
        $html = $this->load->view('pdf_view', $data, true);

        // Set header agar respons berupa PDF
        header('Content-Type: application/pdf');
        header('Content-Disposition: inline; filename="laporan.pdf"');

        $mpdf = new \Mpdf\Mpdf();
        $mpdf->WriteHTML($stylesheet, 1);
        $mpdf->writeHTML($html);
        $mpdf->output();
    }

问题是当您将标签选择值更改为10或其他值时，在视图mpdf中仍然显示5个值数据。

在我回显变量 $limit 后，它仍然显示值 5。这是 pdf 文件的视图

<?php $total_sewa = 0; ?>
<?php $total_denda = 0; ?>
<?php $total_pembayaran = 0; ?>
<?php 
    echo 'berikut ini data limit dan page :'.nl2br("\n");
    echo "page ".$page.nl2br("\n");
    echo "limit ".$limit.nl2br("\n");
?>
    <table class=" table table-bordered">
        <thead>
            <tr>
                <th>No.</th>
                <th>Nama Pelanggan</th>
                <th>Tanggal Pinjam</th>
                <th>Lama Pinjam</th>
                <th>Tanggal Pengembalian</th>
                <th>Kelebihan Sewa</th>
                <th>Sewa Pembayaran</th>
                <th>Denda</th>
                <th>Total Pembayaran</th>
            </tr>
        </thead>
        <tbody>
            <?php $i = 1; ?>
            <?php foreach ($result as $row) : ?>
                <tr>
                    <td><?php echo $i; ?></td>
                    <td><?php echo $row->nama_pelanggan ?></td>
                    <td><?php echo $row->tanggal_pinjam ?></td>
                    <td><?php echo $row->lama_pinjam ?></td>
                    <td><?php echo $row->tanggal_kembali ?></td>
                    <td><?php echo $row->total_keterlambatan_pengembalian ?></td>
                    <td><?php echo "Rp." . number_format($row->total_pembayaran, 0, ',', '.') ?></td>
                    <td><?php echo "Rp." . number_format($row->denda, 0, ',', '.')  ?></td>
                    <td><?php echo "Rp." . number_format($row->sub_total_pembayaran, 0, ',', '.') ?></td>
                </tr>
                <?php $i++; ?>
                <?php $total_sewa += $row->total_pembayaran; ?>
                <?php $total_denda += $row->denda; ?>
                <?php $total_pembayaran += $row->sub_total_pembayaran; ?>
            <?php endforeach ?>
            <tr>
                <th colspan="6" style="text-align: right;"><strong>Total:</strong></th>
                <td><?php echo "Rp.". number_format($total_sewa, 0, ',', '.') ?></td>
                <td><?php echo "Rp.". number_format($total_denda, 0, ',', '.') ?></td>
                <td><?php echo "Rp.". number_format($total_pembayaran, 0, ',', '.') ?></td>
            </tr>
        </tbody>
    </table>

如果您从 view_pdf 中看到 php 代码，我会回显该值：

<?php 
    echo 'berikut ini data limit dan page :'.nl2br("\n");
    echo "page ".$page.nl2br("\n");
    echo "limit ".$limit.nl2br("\n");
?>