Chèn link vào widget menu wordpress

Bạn dùng widget menu để hiện thị menu ra siderbar tuy nhiên khi click vào tiêu đề của widget thì không ra được link. Hãy dùng đoạn code sau để overide widget mặc định của menu wordpress nhé.

if (!class_exists('Abweb_WP_Nav_Menu_Widget')) {
class Abweb_WP_Nav_Menu_Widget extends WP_Nav_Menu_Widget {

public function widget($args, $instance) {
echo $args['before_widget'];

if (!empty($instance['title'])) {
echo $args['before_title'] . '<a href="' . esc_url($instance['link']) . '">' . apply_filters('widget_title', $instance['title'], $instance, $this->id_base) . '</a>' . $args['after_title'];
}
if (!empty($instance['nav_menu'])) {
echo '<div class="menu-container">';
$nav_menu_args = array('menu' => $instance['nav_menu']);
wp_nav_menu(apply_filters('widget_nav_menu_args', $nav_menu_args, $instance, $this->id_base));
echo '</div>';
}

echo $args['after_widget'];
}

public function form($instance) {
$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
$nav_menu = isset($instance['nav_menu']) ? esc_attr($instance['nav_menu']) : '';
$link = isset($instance['link']) ? esc_url($instance['link']) : '#';
?>
<p>
<label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />
</p>

<p>
<label for="<?php echo $this->get_field_id('nav_menu'); ?>"><?php _e('Select Menu:'); ?></label>
<?php
echo '<select id="' . $this->get_field_id('nav_menu') . '" name="' . $this->get_field_name('nav_menu') . '" class="widefat">';
echo '<option value="">'. esc_html__('— Select —', 'text_domain') .'</option>';
foreach (wp_get_nav_menus() as $menu) {
echo '<option value="' . $menu->term_id . '" ' . selected($nav_menu, $menu->term_id, false) . '>' . esc_html($menu->name) . '</option>';
}
echo '</select>';
?>
</p>

<p>
<label for="<?php echo $this->get_field_id('link'); ?>"><?php _e('Link URL:'); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('link'); ?>" name="<?php echo $this->get_field_name('link'); ?>" type="text" value="<?php echo $link; ?>" />
</p>
<?php
}

public function update($new_instance, $old_instance) {
$instance = parent::update($new_instance, $old_instance);
$instance['link'] = esc_url($new_instance['link']);

return $instance;
}
}
}

function replace_Abweb_wp_nav_menu_widget() {
unregister_widget('WP_Nav_Menu_Widget');
register_widget('Abweb_WP_Nav_Menu_Widget');
}

add_action('widgets_init', 'replace_Abweb_wp_nav_menu_widget');