我有一个名为clicktripz_object_location. 我用以下代码创建了一个WP\\u List\\u表；

if(is_admin())
{
    new UCO_Wp_List_Table();
}

/**
 * UCO_Wp_List_Table class will create the page to load the table
 */
class UCO_Wp_List_Table
{
    /**
     * Constructor will create the menu item
     */
    public function __construct()
    {
        add_action( \'admin_menu\', array($this, \'add_menu_uco_list_table_page\' ));
    }

    /**
     * Menu item will allow us to load the page to display the table
     */
    public function add_menu_uco_list_table_page()
    {
        add_menu_page( \'Custom UCO\', \'Custom UCO\', \'manage_options\', \'clicktripz-custom-uco.php\', array($this, \'list_table_page\') );
    }

    /**
     * Display the list table page
     *
     * @return Void
     */
    public function list_table_page()
    {
        $exampleListTable = new UCO_List_Table();
        $exampleListTable->prepare_items();
        ?>
            <div class="wrap">
                <div id="icon-users" class="icon32"></div>
                <h2>Custom UCO</h2>
                <?php $exampleListTable->display(); ?>
            </div>
        <?php
    }
}

// WP_List_Table is not loaded automatically so we need to load it in our application
if( ! class_exists( \'WP_List_Table\' ) ) {
    require_once( ABSPATH . \'wp-admin/includes/class-wp-list-table.php\' );
}

/**
 * Create a new table class that will extend the WP_List_Table
 */
class UCO_List_Table extends WP_List_Table
{
    /**
     * Prepare the items for the table to process
     *
     * @return Void
     */
    public function prepare_items()
    {
        $columns = $this->get_columns();
        $hidden = $this->get_hidden_columns();
        $sortable = $this->get_sortable_columns();

        $data = $this->table_data();
        usort( $data, array( &$this, \'sort_data\' ) );

        $perPage = 2;
        $currentPage = $this->get_pagenum();
        $totalItems = count($data);

        $this->set_pagination_args( array(
            \'total_items\' => $totalItems,
            \'per_page\'    => $perPage
        ) );

        $data = array_slice($data,(($currentPage-1)*$perPage),$perPage);

        $this->_column_headers = array($columns, $hidden, $sortable);
        $this->items = $data;
    }

    /**
     * Override the parent columns method. Defines the columns to use in your listing table
     *
     * @return Array
     */
    public function get_columns()
    {
        $columns = array(
            \'post_title\'                 => \'Title\',
            \'post_date\'                  => \'Date\',
            \'clicktripz_object_location\' => \'Location\'
        );

        return $columns;
    }

    /**
     * Define which columns are hidden
     *
     * @return Array
     */
    public function get_hidden_columns()
    {
        return array();
    }

    /**
     * Define the sortable columns
     *
     * @return Array
     */
    public function get_sortable_columns()
    {
        $sortable = array(
            \'post_title\' => array(\'post_title\', false),
            \'post_date\'  => array(\'post_date\', false),
        );

        return $sortable;
    }

    /**
     * Get the table data
     *
     * @return Array
     */
    private function table_data()
    {
        $post_data = get_posts( array(
            numberposts => -1
        ));

        $page_data = get_pages();

        $data = array_merge( $post_data, $page_data );

        return $data;
    }

    /**
     * Define what data to show on each column of the table
     *
     * @param  Array $item        Data
     * @param  String $column_name - Current column name
     *
     * @return Mixed
     */
    public function column_default( $item, $column_name )
    {
        switch( $column_name ) {
            case \'post_title\':
            case \'post_date\':
                return $item->$column_name;
            case \'clicktripz_object_location\':
                return \'<input type="text" value="\'.$item->$column_name.\'">\';

            default:
                return print_r( $item, true ) ;
        }
    }

    /**
     * Allows you to sort the data by the variables set in the $_GET
     *
     * @return Mixed
     */
    private function sort_data( $a, $b )
    {
        // Set defaults
        $orderby = \'post_title\';
        $order = \'asc\';

        // If orderby is set, use this as the sort column
        if(!empty($_GET[\'orderby\']))
        {
            $orderby = $_GET[\'orderby\'];
        }

        // If order is set use this as the order
        if(!empty($_GET[\'order\']))
        {
            $order = $_GET[\'order\'];
        }


        $result = strcmp( $a->$orderby, $b->$orderby );

        if($order === \'asc\')
        {
            return $result;
        }

        return -$result;
    }
}

如您所见，我已将输入框放置到我创建的自定义WP\\U List\\U表中。

但我找不到在页面右下角放置保存按钮的方法。另外，如何创建一个保存函数来一次性保存所有更改？

提前谢谢。