我建造了一个WP_List_Table 显示在我构建的自定义主题页面上。尽管我查看了Internet上关于WP\\U List\\U表格的所有可能信息，但在显示行操作时遇到了一些问题。

任何帮助都会很好！

class Testimonials_List_Table extends WP_List_Table {

function __construct() {
    parent::__construct( array(
    \'singular\'=> \'testimonial\', //Singular label
    \'plural\' => \'testimonials\', //plural label, also this well be one of the table css class
    \'ajax\' => false //We won\'t support Ajax for this table
   ) );
}

function get_bulk_actions() {
    $actions = array(
    \'delete\' => \'Delete\'
    );
    return $actions;
}

function process_bulk_action() {
    if( \'delete\'===$this->current_action() ) {
    wp_die(\'Items deleted (or they would be if we had items to delete)!\');
   }  
}

function get_columns() {
return $columns= array(
    \'cb\' => \'<input type="checkbox" />\', //Render a checkbox instead of text
    \'name\'=> \'Name\',
    \'company_name\'=> \'Company Name\',
    \'company_url\'=> \'Website URL\',
    \'testimonials_quote\'=> \'Testimonial\'
);
}

function column_name($item){
    $actions = array(
        \'edit\'      => sprintf(\'<a href="?page=%s&action=%s&testimonial=%s">Edit</a>\',$_REQUEST[\'page\'],\'edit\',$item[\'ID\']),
        \'delete\'    => sprintf(\'<a href="?page=%s&action=%s&testimonial=%s">Delete</a>\',$_REQUEST[\'page\'],\'delete\',$item[\'ID\']),
    );

    //Return the title contents
    return sprintf(\'%1$s <span style="color:silver">(id:%2$s)</span>%3$s\',
        /*$1%s*/ $item[\'name\'],
        /*$2%s*/ $item[\'ID\'],
        /*$3%s*/ $this->row_actions($actions)
    );
}



function column_cb($item){
    return sprintf(
        \'<input type="checkbox" name="%1$s[]" value="%2$s" />\',
        /*$1%s*/ $this->_args[\'singular\'],  //Let\'s simply repurpose the table\'s singular label ("movie")
        /*$2%s*/ $item[\'ID\']                //The value of the checkbox should be the record\'s id
    );
}

function prepare_items() {
global $wpdb, $_wp_column_headers;
$screen = get_current_screen();
$wpdb->show_errors(); 
    $query = "SELECT * FROM wp_testimonials"; 
$orderby = !empty($_GET["orderby"]) ? mysql_real_escape_string($_GET["orderby"]) : \'ASC\';
$order = !empty($_GET["order"]) ? mysql_real_escape_string($_GET["order"]) : \'\';
    if(!empty($orderby) & !empty($order)){ $query.=\' ORDER BY \'.$orderby.\' \'.$order; }
    $totalitems = $wpdb->query($query); //return the total number of affected rows
    $perpage = 8;
    $paged = !empty($_GET["paged"]) ? mysql_real_escape_string($_GET["paged"]) : \'\';
    if(empty($paged) || !is_numeric($paged) || $paged<=0 ){ $paged=1; }
    $totalpages = ceil($totalitems/$perpage);
    if(!empty($paged) && !empty($perpage)){
        $offset=($paged-1)*$perpage;
        $query.=\' LIMIT \'.(int)$offset.\',\'.(int)$perpage;
    }
$this->set_pagination_args( array(
    "total_items" => $totalitems,
    "total_pages" => $totalpages,
    "per_page" => $perpage,
    ) );
$columns = $this->get_columns();
    $hidden = array();
    $sortable = $this->get_sortable_columns();
    $this->_column_headers = array($columns, $hidden, $sortable);
    $this->items = $wpdb->get_results($query);

}

function display_rows() {
$records = $this->items;
list( $columns, $hidden ) = $this->get_column_info();
if(!empty($records)){foreach($records as $rec){
    echo \'<tr id="record_\'.$rec->name.\'">\';
    foreach ( $columns as $column_name => $column_display_name ) {
        $class = "class=\'$column_name column-$column_name\'";
        $style = "";
        if ( in_array( $column_name, $hidden ) ) $style = \' style="display:none;"\';
        $attributes = $class . $style;
            $editlink  = \'/test/wp-admin/themes.php?page=testimonials&tab=add_new_testimonial=\'.urlencode((int)$rec->id);
        switch ( $column_name ) {
           case "cb": echo \'<td \'.$attributes.\'><input type="checkbox" /></td>\';break;
           case "id": echo \'<td \'.$attributes.\'>\'.stripslashes($rec->id).\'</td>\';break;
           case "name": echo \'<td \'.$attributes.\'><strong><a href="\'.$editlink.\'" title="Edit">\'.stripslashes($rec->name).\'</a></strong></td>\'; break;
            case "company_name": echo \'<td \'.$attributes.\'>\'.stripslashes($rec->company_name).\'</td>\'; break;
                case "company_url": echo \'<td \'.$attributes.\'>\'.stripslashes($rec->company_url).\'</td>\'; break;
                case "testimonials_quote": echo \'<td \'.$attributes.\'>\'.stripslashes($rec->testimonials_quote).\'</td>\'; break;
        }
    }
    echo\'</tr>\';
    }}
    }


} // End WP_List_Table class