la boîte de recherche de wp_list_table ne s'affiche pas
J'utilise WordPress 3.8 et une classe personnalisée dérivée de WP_List_Table. Pourquoi n'y a-t-il pas de formulaire de recherche?
Mon code en classe de plugin:
function __construct()
{
register_activation_hook( __FILE__, array( $this, 'swb_plugin_install' ) );
register_deactivation_hook( __FILE__, array( $this, 'swb_plugin_deactivate' ) );
register_uninstall_hook( __FILE__, array( $this, 'swb_plugin_remove' ) );
add_action( 'wp_head', array( $this, 'swb_header' ) );
add_action( 'admin_menu', array( $this, 'swb_admin_page' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'swb_admin_script' ) );
}
function swb_admin_resellers()
{
$list_obj = new SWB_Resellers_List_Table();
if( isset($_POST['s']) ){
$list_obj->prepare_items($_POST['s']);
} else {
$list_obj->prepare_items();
}
echo '<div class="wrap"><h2>Resellers List</h2>';
?>
<form method="post">
<input type="hidden" name="page" value="<?php echo $_REQUEST['page'] ?>" />
<?php $list_obj->search_box('search reseller(s)', 'search_id'); ?>
<?php $list_obj->display(); ?>
</form></div>
<?php
}
function swb_admin_page()
{
add_menu_page( '', 'Smarts Web Builder', 'activate_plugins', 'swb_plugin_root', array( $this, 'swb_admin_settings' ) );
add_submenu_page( 'swb_plugin_root', 'SWB General Setting', 'General Settings', 'activate_plugins', 'swb_plugin_root', array( $this, 'swb_admin_settings' ) );
add_submenu_page( 'swb_plugin_root', 'SWB Resellers List', 'Resellers', 'activate_plugins', 'swb_resellers', array( $this, 'swb_admin_resellers' ) );
add_submenu_page( 'swb_plugin_root', 'SWB Licenses List', 'Licenses', 'activate_plugins', 'swb_licenses', array( $this, 'swb_admin_licenses' ) );
add_submenu_page( 'swb_plugin_root', 'SWB Customers List', 'Customers', 'activate_plugins', 'swb_customers', array( $this, 'swb_admin_customers' ) );
add_submenu_page( 'swb_plugin_root', 'SWB Themes', 'Manage Themes', 'activate_plugins', 'swb_themes', array( $this, 'swb_admin_themes' ) );
add_submenu_page( 'swb_plugin_root', 'SWB Plugins', 'Manage Plugins', 'activate_plugins', 'swb_plugins', array( $this, 'swb_admin_plugins' ) );
}
La classe qui étend WP_List_Table:
if(!class_exists( 'SWB_Resellers_List_Table' ) )
{
class SWB_Resellers_List_Table extends WP_List_Table
{
function __construct()
{
parent::__construct(array(
'singular' => 'wp_list_text_link',
'plural' => 'wp_list_test_links',
'ajax' => false
));
}
function get_columns()
{
return $column = array(
'col_name' => __('Real Name'),
'col_username' => __('Username'),
'col_contact_no' => __('Contact No.'),
'col_email' => __('Email'),
'col_active' => __('Is Active?'),
'col_registered_time' => __('Registered'),
'col_modified_time' => __('Last Modified')
);
}
public function get_sortable_columns()
{
return $sortable = array(
'col_name' => array(
'name',
false
),
'col_username' => array(
'username',
false
),
'col_email' => array(
'email',
false
),
'col_active' => array(
'active',
false
),
'col_registered_time' => array(
'registered_time',
false
),
'col_modified_time' => array(
'modified_time',
false
)
);
}
function prepare_items($search='')
{
global $wpdb;
$table = $wpdb->prefix . SWB_TABLE_RESELLER;
$join1 = $wpdb->prefix . "wlm_user_options";
$join2 = $wpdb->users;
$short_table = "T1";
$short_join1 = "T2";
$short_join2 = "T3";
$column = "{$short_table}.reseller_id reseller_id,
{$short_table}.user_id user_id,
{$short_table}.active active,
{$short_table}.modified_time modified_time,
(SELECT {$short_join1}.option_value FROM {$join1} {$short_join1} WHERE {$short_join1}.option_name='custom_real_name' AND {$short_join1}.user_id={$short_table}.user_id) name,
(SELECT {$short_join1}.option_value FROM {$join1} {$short_join1} WHERE {$short_join1}.option_name='custom_contact_no' AND {$short_join1}.user_id={$short_table}.user_id) contact_no,
{$short_join2}.user_login username,
{$short_join2}.user_email email,
{$short_join2}.user_registered registered_time";
$on1 = "{$short_join2}.ID={$short_table}.user_id";
$where = "";
$where .= !empty($_POST['name']) ? "name=" . trim($_POST['name']) : null;
$where .= !empty($_POST['username']) ? "username=" . trim($_POST['username']) : null;
if(!empty($search)){
if( !empty($where) ) $where .= " AND ";
$where = "(name LIKE '%{$search}%' OR username LIKE '%{$search}%')";
}
if( !empty($where) ) $where = " WHERE " . $where;
$ordercolumn = !empty($_GET['orderby']) ? trim($_GET['orderby']) : null;
$orderdirection = !empty($_GET['order']) ? trim($_GET['order']) : null;
$orderby = "{$ordercolumn} {$orderdirection}";
if( !empty($orderby) ) $orderby = "ORDER BY " . $orderby;
$query = "SELECT {$column} FROM {$table} {$short_table} JOIN {$join1} {$short_join1} JOIN {$join2} {$short_join2} ON {$on1}{$where}{$order_by}";
$totalitems = $wpdb->query($query);
$perpage = 10;
$paged = !empty($_GET["paged"]) ? intval($_GET["paged"]) : '';
if (empty($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;
}
// Register page
$this->set_pagination_args(
array(
"total_items" => $totalitems,
"total_pages" => $totalpages,
"per_page" => $perpage
)
);
// Register column
$columns = $this->get_columns();
$hidden = array();
$sortable = $this->get_sortable_columns();
$this->_column_headers = array(
$columns,
$hidden,
$sortable
);
// var_dump($this);
// echo $query;
// Fetch items
$this->items = $wpdb->get_results($query);
}
}
function display_rows()
{
$records = $this->items;
$columns = null;
$hidden = null;
list($columns, $hidden) = $this->get_column_info();
if (!empty($records)) {
foreach ($records as $rec) {
echo '<tr id="swb-reseller-row-' . $rec->reseller_id . '">';
foreach ($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 . $style;
switch ($column_name) {
case "col_name":
echo '<td ' . $attributes . '>' . stripslashes($rec->name) . '</td>';
break;
case "col_username":
echo '<td ' . $attributes . '>' . stripslashes($rec->username) . '</td>';
break;
case "col_contact_no":
echo '<td ' . $attributes . '>' . stripslashes($rec->contact_no) . '</td>';
break;
case "col_email":
echo '<td ' . $attributes . '>' . stripslashes($rec->email) . '</td>';
break;
case "col_active":
$active = ( intval($rec->active) == 1 ) ? 'Yes' : 'No';
echo '<td ' . $attributes . '>' . $active . '</td>';
break;
case "col_registered_time":
echo '<td ' . $attributes . '>' . date("F j, Y g:i a", stripslashes($rec->registered_time)) . '</td>';
break;
case "col_modified_time":
echo '<td ' . $attributes . '>' . date("F j, Y g:i a", stripslashes($rec->modified_time)) . '</td>';
break;
}
}
echo '</tr>';
}
}
}
}
Je ne sais pas pourquoi le champ de recherche ne s’affiche pas. Que manque-t-il?
Vous devez utiliser $list_obj->prepare_items() avant la fonction $list_obj->search_box('Search', 'search')!
Exemple:
<form method="post">
<input type="hidden" name="page" value="<?php echo $_REQUEST['page']; ?>" />
<?php $this->sales_obj->prepare_items();
$this->sales_obj->search_box('Search', 'search');
$this->sales_obj->display(); ?>
</form>
J'ai résolu ce problème en remplaçant la fonction search_box () par ce qui suit:
public function search_box( $text, $input_id ) { ?>
<p class="search-box">
<label class="screen-reader-text" for="<?php echo $input_id ?>"><?php echo $text; ?>:</label>
<input type="search" id="<?php echo $input_id ?>" name="s" value="<?php _admin_search_query(); ?>" />
<?php submit_button( $text, 'button', false, false, array('id' => 'search-submit') ); ?>
</p>
<?php }
Placez cette fonction dans votre classe WP_List_Tables personnalisée et le problème sera résolu.
si vous ajoutez des données sur votre table, vous verrez la boîte. Si elle indique "No items found", wordpress n’affiche pas la boîte. Ajouter une donnée, la boîte apparaîtra.
Jetez un coup d'œil à la boite de recherche 'wp_list_table':
function search_box( $text, $input_id ) {
if ( empty( $_REQUEST['s'] ) && !$this->has_items() )
return;
$input_id = $input_id . '-search-input';
if ( ! empty( $_REQUEST['orderby'] ) )
echo '<input type="hidden" name="orderby" value="' . esc_attr( $_REQUEST['orderby'] ) . '" />';
if ( ! empty( $_REQUEST['order'] ) )
echo '<input type="hidden" name="order" value="' . esc_attr( $_REQUEST['order'] ) . '" />';
if ( ! empty( $_REQUEST['post_mime_type'] ) )
echo '<input type="hidden" name="post_mime_type" value="' . esc_attr( $_REQUEST['post_mime_type'] ) . '" />';
if ( ! empty( $_REQUEST['detached'] ) )
echo '<input type="hidden" name="detached" value="' . esc_attr( $_REQUEST['detached'] ) . '" />';
?>
<p class="search-box">
<label class="screen-reader-text" for="<?php echo $input_id ?>"><?php echo $text; ?>:</label>
<input type="search" id="<?php echo $input_id ?>" name="s" value="<?php _admin_search_query(); ?>" />
<?php submit_button( $text, 'button', false, false, array('id' => 'search-submit') ); ?>
</p>
<?php
}
La partie if(empty($_REQUEST['s']) && !$this->has_items() pourrait bloquer l’apparence search_box.