我想为类别的菜单项添加帖子数量。 例如：
等...
我编辑 walker ：
获取号码：
$item_count = $depth == 0 ? get_posts( array(
'post_type' => 'post',
'numberposts' => -1,
'orderby' => 'category',
'order' => 'ASC'
) ) : false;
输出：
$item_output .= $item_count ? ' <span>(' . count( $item_count ) . ')</span>' : '';
结果是每个菜单项的postscript所有帖子的数量。 如何修改？
答案 0 :(得分：1)
<?php wp_list_categories(array('show_count' => true)); ?>
您的实例更新：
使用link you provided in the comments中的完整代码，我们在结束<a>之前添加if语句
if($item->type == 'taxonomy'){
$cat = get_category( $item->object_id);
$item_output .= ' ('.$cat->count.')</a>';
}
完整代码：
/* Bootstrap_Walker for Wordpress
* Author: George Huger, Illuminati Karate, Inc
* More Info: http://illuminatikarate.com/blog/bootstrap-walker-for-wordpress
*
* Formats a Wordpress menu to be used as a Bootstrap dropdown menu (http://getbootstrap.com).
*
* Specifically, it makes these changes to the normal Wordpress menu output to support Bootstrap:
*
* - adds a 'dropdown' class to level-0 <li>'s which contain a dropdown
* - adds a 'dropdown-submenu' class to level-1 <li>'s which contain a dropdown
* - adds the 'dropdown-menu' class to level-1 and level-2 <ul>'s
*
* Supports menus up to 3 levels deep.
*
*/
class Bootstrap_Walker extends Walker_Nav_Menu
{
/* Start of the <ul>
*
* Note on $depth: Counterintuitively, $depth here means the "depth right before we start this menu".
* So basically add one to what you'd expect it to be
*/
function start_lvl(&$output, $depth)
{
$tabs = str_repeat("\t", $depth);
// If we are about to start the first submenu, we need to give it a dropdown-menu class
if ($depth == 0 || $depth == 1) { //really, level-1 or level-2, because $depth is misleading here (see note above)
$output .= "\n{$tabs}<ul class=\"dropdown-menu\">\n";
} else {
$output .= "\n{$tabs}<ul>\n";
}
return;
}
/* End of the <ul>
*
* Note on $depth: Counterintuitively, $depth here means the "depth right before we start this menu".
* So basically add one to what you'd expect it to be
*/
function end_lvl(&$output, $depth)
{
if ($depth == 0) { // This is actually the end of the level-1 submenu ($depth is misleading here too!)
// we don't have anything special for Bootstrap, so we'll just leave an HTML comment for now
$output .= '<!--.dropdown-->';
}
$tabs = str_repeat("\t", $depth);
$output .= "\n{$tabs}</ul>\n";
return;
}
/* Output the <li> and the containing <a>
* Note: $depth is "correct" at this level
*/
function start_el(&$output, $item, $depth, $args)
{
global $wp_query;
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$class_names = $value = '';
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
/* If this item has a dropdown menu, add the 'dropdown' class for Bootstrap */
if ($item->hasChildren) {
$classes[] = 'dropdown';
// level-1 menus also need the 'dropdown-submenu' class
if($depth == 1) {
$classes[] = 'dropdown-submenu';
}
}
/* This is the stock Wordpress code that builds the <li> with all of its attributes */
$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
$class_names = ' class="' . esc_attr( $class_names ) . '"';
$output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';
$attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : '';
$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : '';
$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : '';
$attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : '';
$item_output = $args->before;
/* If this item has a dropdown menu, make clicking on this link toggle it */
if ($item->hasChildren && $depth == 0) {
$item_output .= '<a'. $attributes .' class="dropdown-toggle" data-toggle="dropdown">';
} else {
$item_output .= '<a'. $attributes .'>';
}
$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
/* Output the actual caret for the user to click on to toggle the menu */
if ($item->hasChildren && $depth == 0) {
$item_output .= '<b class="caret"></b></a>';
}elseif($item->type == 'taxonomy'){
$cat = get_category( $item->object_id);
$item_output .= ' ('.$cat->count.')</a>';
} else {
$item_output .= '</a>';
}
$item_output .= $args->after;
$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
return;
}
/* Close the <li>
* Note: the <a> is already closed
* Note 2: $depth is "correct" at this level
*/
function end_el (&$output, $item, $depth, $args)
{
$output .= '</li>';
return;
}
/* Add a 'hasChildren' property to the item
* Code from: http://wordpress.org/support/topic/how-do-i-know-if-a-menu-item-has-children-or-is-a-leaf#post-3139633
*/
function display_element ($element, &$children_elements, $max_depth, $depth = 0, $args, &$output)
{
// check whether this item has children, and set $item->hasChildren accordingly
$element->hasChildren = isset($children_elements[$element->ID]) && !empty($children_elements[$element->ID]);
// continue with normal behavior
return parent::display_element($element, $children_elements, $max_depth, $depth, $args, $output);
}
}
答案 1 :(得分：0)
如果您使用的是某些自定义的分类后分类，则可以更改此代码的代码：
if ($item->type == 'taxonomy'){
$term = get_term($item->object_id);
$item_output .= '<div class="meni-item-badge"> '.$term->count .'</div>';
}
希望这能帮助别人!! 关心马里奥