How to pass any arguments to an admin page via a new admin menu item?

  • For a plugin I’m writing I need to add a sub menu item to the Comments menu in admin dashboard.

    No problem doing this with:

    add_submenu_page('edit-comments.php',__('Comments'), 'Aggiungi Commento', 'edit_posts', 'dashboard-write-comments.php', 'write_comment_page');

    But I need to pass an argument to the page that I’m calling (let say that I need to pass the post id).

    I can’t find a way to do this without raising an error.

    If I add any other value to the “file” argument of the add_submenu_page() funcion, WordPress trow out an “You do not have sufficient permissions to access this page.” error.
    Example: add_submenu_page('edit-comments.php',__('Comments'), 'Aggiungi Commento', 'edit_posts', 'dashboard-write-comments.php&post='.$post_id, 'write_comment_page');

    I tried both dashboard-write-comments.php&post='.$post_id and dashboard-write-comments.php?post='.$post_id without any luck.

    I checked the core WP files and looks like that the error is triggered in wp-admin/menu.php, at the very end of the file, where it doeas a check with user_can_access_admin_page()

    Can’t understand why if the “link” has no arguments the “can access admin page” is ok but when I add any argument the check stop everithing…

    Anyone can help? or suggest an other way?

Viewing 5 replies - 1 through 5 (of 5 total)
  • uwiuw

    (@uwiuw)

    firstly, try to change the capability into ‘read’(the lowest), to see if the problem is really about user capability

    but i think the error is more because wordpress failed to initiate $menu. you can debug it by using $global $menu, $submenu to see if your plugin url has been written in the array.

    i assume your problem here, dashboard-write-comments.php&post='.$post_id

    i don’t know. I never really have to create such menu url. But i have voodoo here without really know what going on in the core. such as

    $url = get_bloginfo('url');
$urllogout = wp_logout_url($url); $urllogout =  str_replace($url , "", $urllogout);
add_menu_page('mylogout', 'Logout', 'read', "../" . $urllogout , '' );

    As you can see i make custom log_out link menu for subscriber here. and it also has value _wpnonce variabel on its url string…

    i love to hear your work around, ??

    Thread Starter Stefano Garuti

    (@garubi)

    Thanks for your help!

    Changed the capabilty to ‘read‘, but still the same error.
    I can confirm that the sub-menu item is initiated: it show in the menues, I can click on it; I also performed the check you suggested with print_r($submenu); and it’s ok.

    I’m pretty confident that the problem is about some sort of wp_nonce that the system can’t validate from one admin page to another if I add some arguments to the menu url link…

    Any other idea is really appreciated

    Stefano

    uwiuw

    (@uwiuw)

    print_r($submenu); and it’s OK.

    by the way, have you check how the $submenu value and its array. where is the url head, the function handle, etc. For example here

    Array
        (
            [0] => BuddyPress
            [1] => 10
            <strong>[2] => bp-general-settings</strong>
            [3] => BuddyPress
            [4] => menu-top toplevel_page_bp-general-settings menu-top-last
            [5] => toplevel_page_bp-general-settings
            [6] => images/generic.png
        )

    where is your submenu url ?

    How about using “?” as the $_get value.

    dashboard-write-comments.php?post=’.$post_id

    Surely, i can not help more. but what i believe those menu is hide in option as serialized value (just like role and capability). i also don’t understand yet how those serialized value decode/encode behind the core.

    Thread Starter Stefano Garuti

    (@garubi)

    I’ll try as soon I’ll come back tu the office…
    thanks for your help!

    STefano

    So what’s up ?
    I ‘ve same problem here …
    Did you find your solution ?

Viewing 5 replies - 1 through 5 (of 5 total)
  • The topic ‘How to pass any arguments to an admin page via a new admin menu item?’ is closed to new replies.

Tags