我创建了自定义的WP\\U list\\U表格，附带了类似的表单（添加新的类别表单），但当我提交表单时，WP\\U list\\U表格不会刷新。当我再次刷新页面时，会显示信息。我使用wp\\u list\\u table\\u example插件，除了获取example\\u数据和表单之外，其他一切都是一样的。
class TT_Example_List_Table extends WP_List_Table {
function __construct(){
global $status, $page;
//Set parent defaults
parent::__construct( array(
\'singular\' => \'movie\', //singular name of the listed records
\'plural\' => \'movies\', //plural name of the listed records
\'ajax\' => false //does this table support ajax?
) );
}
function column_default($item, $column_name){
switch($column_name){
case \'rating\':
case \'director\':
return $item[$column_name];
default:
return print_r($item,true); //Show the whole array for troubleshooting purposes
}
}
function column_title($item){
//Build row actions
$actions = array(
\'edit\' => sprintf(\'<a href="?page=%s&action=%s&movie=%s">Edit</a>\',$_REQUEST[\'page\'],\'edit\',$item[\'ID\']),
\'delete\' => sprintf(\'<a href="?page=%s&action=%s&movie=%s">Delete</a>\',$_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[\'title\'],
/*$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 get_columns(){
$columns = array(
\'cb\' => \'<input type="checkbox" />\', //Render a checkbox instead of text
\'title\' => \'Title\',
\'rating\' => \'Rating\',
);
return $columns;
}
function get_sortable_columns() {
$sortable_columns = array(
\'title\' => array(\'title\',false), //true means it\'s already sorted
\'rating\' => array(\'rating\',false),
\'director\' => array(\'director\',false)
);
return $sortable_columns;
}
function get_bulk_actions() {
$actions = array(
\'delete\' => \'Delete\'
);
return $actions;
}
function process_bulk_action() {
//Detect when a bulk action is being triggered...
if( \'delete\'===$this->current_action() ) {
wp_die(\'Items deleted (or they would be if we had items to delete)!\');
}
}
function prepare_items() {
$data = array();
$example_data = array();
$terms = get_terms( \'productcat\', array(\'hide_empty\' => false));
print_r($terms);
if ( ! empty( $terms ) ){
foreach ( $terms as $term ) {
$data[] = array(
\'ID\' => $term->term_id,
\'title\' => $term->name
);
}
}
$example_data = $data;
$per_page = 5;
$columns = $this->get_columns();
$hidden = array();
$sortable = $this->get_sortable_columns();
$this->_column_headers = array($columns, $hidden, $sortable);
$this->process_bulk_action();
$data = $example_data;
function usort_reorder($a,$b){
$orderby = (!empty($_REQUEST[\'orderby\'])) ? $_REQUEST[\'orderby\'] : \'title\'; //If no sort, default to title
$order = (!empty($_REQUEST[\'order\'])) ? $_REQUEST[\'order\'] : \'asc\'; //If no order, default to asc
$result = strcmp($a[$orderby], $b[$orderby]); //Determine sort order
return ($order===\'asc\') ? $result : -$result; //Send final sort direction to usort
}
usort($data, \'usort_reorder\');
$current_page = $this->get_pagenum();
$total_items = count($data);
$data = array_slice($data,(($current_page-1)*$per_page),$per_page);
$this->items = $data;
$this->set_pagination_args( array(
\'total_items\' => $total_items, //WE have to calculate the total number of items
\'per_page\' => $per_page, //WE have to determine how many items to show on a page
\'total_pages\' => ceil($total_items/$per_page) //WE have to calculate the total number of pages
) );
}
}
function tt_add_menu_items(){
add_menu_page(\'Example Plugin List Table\', \'List Table Example\', \'activate_plugins\', \'tt_list_test\', \'tt_render_list_page\');
} add_action(\'admin_menu\', \'tt_add_menu_items\');
function tt_render_list_page(){
//Create an instance of our package class...
$testListTable = new TT_Example_List_Table();
//Fetch, prepare, sort, and filter our data...
$testListTable->prepare_items();
?>
<div class="wrap">
<div id="icon-users" class="icon32"><br/></div>
<h2>List Table Test</h2>
<form id="movies-filter" method="GET">
<!-- For plugins, we also need to ensure that the form posts back to our current page -->
<input type="hidden" name="page" value="<?php echo $_REQUEST[\'page\'] ?>" />
<!-- Now we can render the completed list table -->
<?php $testListTable->display(); ?>
</form>
<form id="insert_term" name="insert_term" method="post" action="">
<div class="form-field term-name-wrap">
<label for="term">Term</label>
<input type="text" value="" name="term" id="term" size="40" />
<p>Description</p>
</div>
<label>Description</label><input type="text" value="" name="termdesc" id="termdesc" />
<input type="submit" value="Add term" id="submit" name="submit" />
<input type="hidden" name="action" value="new_term" />
</form>
<?php
if( \'POST\' == $_SERVER[\'REQUEST_METHOD\']) && $_POST[\'action\'] == "new_term") {
if (isset($_POST[\'term\']) && !empty( $_POST[\'term\']) ) {
$new_term = $_POST[\'term\'];
$description = $_POST[\'desc\'];
wp_insert_term(
$new_term,
\'productcat\',
array(
\'description\'=> $description,
));
}
}
?>
</div>
<?php
}
我的问题是，当我在表单中添加新术语时，为什么不刷新wp\\u list\\u表，这是因为获取数据的方式还是因为添加数据的方式。提交新学期后如何刷新wp\\u table\\u列表。欢迎任何帮助。
