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Stop navwalker displaying grandchild links automatically WordPress

  • SOLVED

Hi,

I've been a bit frustrated with getting wp_bootstrap_navwalker to display grandchild links in the order that I want them -- it currently just orders alphabetically.

I currently have a custom navwalker that creates a megamenu where there are grandchild links.

I'd now rather organise the menu via the admin panel so that I can order them how I'd like, but I can't work out how to get the navwalker to stop automatically displaying the grandchild links.

Can anyone help?

Navwalker code:


<?php
/**
* Class Name: wp_bootstrap_navwalker
* GitHub URI: https://github.com/twittem/wp-bootstrap-navwalker
* Description: A custom WordPress nav walker class to implement the Bootstrap 3 navigation style in a custom theme using the WordPress built in menu manager.
* Version: 2.0.4
* Author: Edward McIntyre - @twittem
* License: GPL-2.0+
* License URI: http://www.gnu.org/licenses/gpl-2.0.txt
*/
class wp_bootstrap_navwalker extends Walker_Nav_Menu {
/**
* @see Walker::start_lvl()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of page. Used for padding.
*/

public function start_lvl( &$output, $depth = 0, $args = array() ) {
if($depth==0){

$output .= "<ul role=\"menu\" class=\"dropdown-menu multi-column columns-4\">\n";

}

else{

$output .= "<ul role=\"menu\" class=\"multi-column-dropdown\">\n";
}
}

/**
* @see Walker::start_el()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Menu item data object.
* @param int $depth Depth of menu item. Used for padding.
* @param int $current_page Menu item ID.
* @param object $args
*/

public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {

$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

/**
* Dividers, Headers or Disabled
* =============================
* Determine whether the item is a Divider, Header, Disabled or regular
* menu item. To prevent errors we use the strcasecmp() function to so a
* comparison that is not case sensitive. The strcasecmp() function returns
* a 0 if the strings are equal.
*/

if ( strcasecmp( $item->attr_title, 'divider' ) == 0 && $depth === 1 ) {

$output .= $indent . '<li role="presentation" class="divider">';

} else if ( strcasecmp( $item->title, 'divider') == 0 && $depth === 1 ) {

$output .= $indent . '<li role="presentation" class="divider">';

} else if ( strcasecmp( $item->attr_title, 'dropdown-header') == 0 && $depth === 1 ) {

$output .= $indent . '<li role="presentation" class="dropdown-header">' . esc_attr( $item->title );

} else if ( strcasecmp($item->attr_title, 'disabled' ) == 0 ) {

$output .= $indent . '<li role="presentation" class="disabled"><a href="#">' . esc_attr( $item->title ) . '</a>';

} else {

$class_names = $value = '';

$classes = empty( $item->classes ) ? array() : (array) $item->classes;

$classes[] = 'menu-item-' . $item->ID;

$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );

if ( $args->has_children )

$class_names .= ' dropdown';

if ( $args->has_children && $depth==1)

$class_names .= ' dropdown col-md-4 ';

if ( in_array( 'current-menu-item', $classes ) )

$class_names .= ' active';

$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';

$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );

$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';

$output .= $indent . '<li' . $id . $value . $class_names .'>';

$atts = array();

$atts['title'] = ! empty( $item->title ) ? $item->title : '';

$atts['target'] = ! empty( $item->target ) ? $item->target : '';

$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';

// If item has_children add atts to a.

if ( $args->has_children && $depth === 0 ) {

$atts['href'] = '#';

$atts['data-toggle'] = 'dropdown';

$atts['class'] = 'dropdown-toggle';

$atts['aria-haspopup'] = 'true';

}
else {

$atts['href'] = ! empty( $item->url ) ? $item->url : '';

}

$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args );

$attributes = '';

foreach ( $atts as $attr => $value ) {

if ( ! empty( $value ) ) {

$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );

$attributes .= ' ' . $attr . '="' . $value . '"';

}

}

$item_output = $args->before;

/*

* Glyphicons

* ===========

* Since the the menu item is NOT a Divider or Header we check the see

* if there is a value in the attr_title property. If the attr_title

* property is NOT null we apply it as the class name for the glyphicon.

*/

if ( ! empty( $item->attr_title ) )

$item_output .= '<a class="dd-head" '. $attributes .'>';

else

$item_output .= '<a'. $attributes .'>';

$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;

$item_output .= ( $args->has_children && 0 === $depth ) ? ' <i class="fa fa-angle-down"></i></a>' : '</a>';

$item_output .= $args->after;



$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );

}

}

/**
* Traverse elements to create list from elements.
*
* Display one element if the element doesn't have any children otherwise,
* display the element and its children. Will only traverse up to the max
* depth and no ignore elements under that depth.
*
* This method shouldn't be called directly, use the walk() method instead.
*
* @see Walker::start_el()
* @since 2.5.0
*
* @param object $element Data object
* @param array $children_elements List of elements to continue traversing.
* @param int $max_depth Max depth to traverse.
* @param int $depth Depth of current element.
* @param array $args
* @param string $output Passed by reference. Used to append additional content.
* @return null Null on failure with no changes to parameters.
*/

public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {

if ( ! $element )

return;

$id_field = $this->db_fields['id'];

// Display this element.

if ( is_object( $args[0] ) )

$args[0]->has_children = ! empty( $children_elements[ $element->$id_field ] );

parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );

}

/**
* Menu Fallback
* =============
* If this function is assigned to the wp_nav_menu's fallback_cb variable
* and a manu has not been assigned to the theme location in the WordPress
* menu manager the function with display nothing to a non-logged in user,
* and will add a link to the WordPress menu manager if logged in as an admin.
*
* @param array $args passed from the wp_nav_menu function.
*
*/
public static function fallback( $args ) {

if ( current_user_can( 'manage_options' ) ) {

extract( $args );

$fb_output = null;

if ( $container ) {

$fb_output = '<' . $container;

if ( $container_id )

$fb_output .= ' id="' . $container_id . '"';

if ( $container_class )

$fb_output .= ' class="' . $container_class . '"';

$fb_output .= '>';

}

$fb_output .= '<ul';

if ( $menu_id )

$fb_output .= ' id="' . $menu_id . '"';

if ( $menu_class )

$fb_output .= ' class="' . $menu_class . '"';

$fb_output .= '>';

$fb_output .= '<li><a href="' . admin_url( 'nav-menus.php' ) . '">Add a menu</a></li>';

$fb_output .= '</ul>';

if ( $container )

$fb_output .= '</' . $container . '>';

echo $fb_output;
}
}
}

Answers (1)

2015-11-10

Rempty answers:

You can change the "depth" of menu, check on your header wp_nav_menu


<?php /* Primary navigation */
wp_nav_menu( array(
'menu' => 'primary',
'depth' => 2,//Change this value to 1 and test
'container' => false,
'menu_class' => 'nav navbar-nav',
//Process nav menu using our custom nav walker
'walker' => new wp_bootstrap_navwalker())
);
?>


sebdean comments:

Hi,

I'd still like to be able to add grandchild links manually and for them to appear. I just want to be able to reorder via the admin.


Rempty comments:

I tested your code and works fine, i need to add manually the grandchilds (appearence/menus) and reorder as i want.


sebdean comments:

Hi it only shows the children on my version.

Menu structure:

Home
Services
-- Commercial
---- Electrical
---- Other
-- Residential
---- Link 1
---- Link 2

If I set the depth to 2, it just shows commercial and residential (none of the children).


Rempty comments:

Services=Parent
--Commercial= Child
----Electrical= Grandchild?

Change depth to 4


sebdean comments:

Yes but when I do that, we're back to the beginning and it will show the auto generated grandchild links along with the manually added links. I just want the manually added links.


Rempty comments:

where are autogenerating grandchild links?
Do you have a custom function?

See screenshot
http://imgur.com/bX4vXVv


sebdean comments:

Hi,

No it's just the code that's listed above. I don't get why it's autogenerating in my menu but not in yours?


Rempty comments:

Maybe you have installed this plugin https://wordpress.org/plugins/auto-submenu/


sebdean comments:

No, haven't installed any plugins that would be doing this. The menu works solely off the navwalker.


Rempty comments:

Try deleting your current menu, and create a new menu.

Can you attach a screenshot?


sebdean comments:

Tried deleting and creating new menu, same problem.

Screen when menu depth remains as normal:

http://imgur.com/UNN3Kpp

Screen when I set menu depth to one lower:

http://imgur.com/zKVlLP4


Rempty comments:

ok, now can you explain whats is the problem?


sebdean comments:

So basically, the first screenshot is pulling the links that I've manually added to the menu via appearance->menus, but it's also automatically pulling the same links because they're children of (for example) commercial interiors.

I don't want it to automatically pull the links, I just want it to pull the links that I've manually added in the admin area. That way I can order them how I like. When it pulls them automatically it orders them alphabetically which is no good for me.


Rempty comments:

Services are categories?
Commercial Interiors is a category?


Rempty comments:

Just for test, can u add all this links as "Custom Links"


Rempty comments:

Commercial Interiors as Custom Link
and childrens Office * Electrical work, etc real links (post type, category, etc. i dont know.)


sebdean comments:

Services doesn't link to anything, it's simply a dropdown toggle.

Commercial interiors is a parent page with children underneath it (the grandchildren)

Your custom link idea worked! Thanks! Any ideas why it's been doing that?