/**
     * @param  $plugin CF7DBPlugin
     * @return void
     */
    function display(&$plugin)
    {
        if ($plugin == null) {
            $plugin = new CF7DBPlugin();
        }
        $forms = $plugin->getForms();
        $importUrl = admin_url('admin-ajax.php') . '?action=cfdb-importcsv';
        ?>
        <h2><?php 
        _e('Import CSV File into Form', 'contact-form-7-to-database-extension');
        ?>
</h2>
        <form enctype="multipart/form-data" action="<?php 
        echo $importUrl;
        ?>
" method="post">
            <table>
                <tbody>
                <tr>
                    <td><label for="file"><?php 
        _e('File', 'contact-form-7-to-database-extension');
        ?>
</label></td>
                    <td><input type="file" name="file" id="file" size="50"></td>
                </tr>
                <tr>
                    <td><input type="radio" name="into" id="new" value="new" checked> <?php 
        _e('New Form', 'contact-form-7-to-database-extension');
        ?>
</td>
                    <td><input type="text" name="newformname" id="newformname" size="50"/></td>
                </tr>
                <tr>
                    <td><input type="radio" name="into" id="existing" value="into"> <?php 
        _e('Existing Form', 'contact-form-7-to-database-extension');
        ?>
</td>
                    <td>
                        <select name="form" id="form">
                            <option value=""></option>
                            <?php 
        foreach ($forms as $formName) {
            echo "<option value=\"{$formName}\">{$formName}</option>";
        }
        ?>
                        </select>
                    </td>
                </tr>
                </tbody>
            </table>
            <input type="submit" name="<?php 
        _e('Import', 'contact-form-7-to-database-extension');
        ?>
" id="importsubmit" value="import">
        </form>

        <script type="text/javascript">
                jQuery('#file').change(function () {
                    var val = jQuery(this).val();
                    val = val.substring(val.lastIndexOf('/') + 1);
                    val = val.substring(val.lastIndexOf('\\') + 1);
                    val = val.replace(/\.([^\.])*$/, "");
                    jQuery('#newformname').val(val);
                });
        </script>

        <h2><?php 
        _e('Backup Form to CSV File', 'contact-form-7-to-database-extension');
        ?>
</h2>
        <ul>
            <li><?php 
        _e('Backup a form into a CSV file that can be re-imported without loss of data.', 'contact-form-7-to-database-extension');
        ?>
</li>
            <li><?php 
        _e('Limitation: this will not export file uploads.', 'contact-form-7-to-database-extension');
        ?>
</li>
            <li><?php 
        _e('Limitation: extremely large numbers of records in your form may cause the export operation on your server to run out of memory, thereby not giving you all the rows.', 'contact-form-7-to-database-extension');
        ?>
</li>
        </ul>
        <form method="get" action="<?php 
        echo $plugin->getPluginDirUrl();
        ?>
export.php">
            <input type="hidden" name="enc" value="CSV"/>
            <input type="hidden" name="bak" value="true"/>
            <select name="form">
                <option value=""></option>
                <?php 
        foreach ($forms as $formName) {
            echo "<option value=\"{$formName}\">{$formName}</option>";
        }
        ?>
            </select>
            <input type="submit" name="<?php 
        _e('Export', 'contact-form-7-to-database-extension');
        ?>
" value="export">
        </form>
    <?php 
    }