如何在默認情況下啓用菜單屏幕選項CSS類？

Question

我想在默認情況下啓用菜單屏幕選項CSS classes。
我應該用什麼代碼來實現這個目標？

Answer 1

您可以添加一個過濾器到get_user_option_{$option}其中{$option}是在wp_nav_menu_setup()函數中檢查的用戶元鍵managenav-menuscolumnshidden。如果元值是false，這是用戶第一次登錄，它將設置默認隱藏選項。如果你勾住這個，你可以設置你自己的默認值，並確保它永不返回false。

// add a filter to catch unset hidden options 
add_filter('get_user_option_managenav-menuscolumnshidden', 'my_default_menuscolumnshidden', 99, 3); 
function my_default_menuscolumnshidden($result, $option, $user_id){ 
    if($option == "managenav-menuscolumnshidden"){ 
     // remove this function to prevent a loop 
     remove_filter('get_user_option_managenav-menuscolumnshidden', 'my_default_menuscolumnshidden', 99); 
     // check if it is false (first login) 
     $result = get_user_option($option); 
     if (false === $result) { 
      // update with your own defaults (omits CSS from the hidden options) 
      $result = array(0 => 'link-target', 1 => 'xfn', 2 => 'description'); 
      update_user_option($user->ID, 'managenav-menuscolumnshidden', 
       $result, 
       true); 
     } 
     // re-add filter in case it gets called again 
     add_filter('get_user_option_managenav-menuscolumnshidden', 'my_default_menuscolumnshidden', 99); 
    } 
    // if this was false before, now it is set to custom defaults 
    return $result; 
}