From add_menu_page in Codex: Note: If you’re running into the “You do not have sufficient permissions to access this page” error, then you’ve hooked too early. The hook you should use is admin_menu. admin_init is too early to hook add_menu_page, use admin_menu.
The way of your approach is arguably wrong. One shouldn’t use add_menu_page for external links as that function isn’t created for that purpose. Add menu page adds a page in the admin area with menu_slug as the fourth argument. If we take a look at add_menu_page/dev ref source, we can notice that whatever the URL … Read more
I found the answer. To make it short: SOLUTION 1 If you want to simply add a custom post type to a menu item, go with solution number one (which involves creating a menu page with add_menu_pageand setting ‘show_in_menu=>’ to your menu page slug). It works, but if you click on your newly created menu … Read more
To do that, you would use add_submenu_page(). But I would strongly recommend against making submenu pages for Theme options. To begin with, you should be using add_theme_page() for your Theme options page, so that your Theme options page itself is properly placed as an Appearance sub-menu page.
You can use the global variable $menu to see which top level menus are registered. function determine_menus() { global $menu; //echo ‘<pre>’; print_r($menu); exit; // uncomment to see the array of menus in back-end } add_action(‘admin_init’, ‘determine_menus’);
finally i found where does the issue come from, it was a custom post metas that causing this problem, i don’t know why but when i removed them, everything worked fine.
You need the information about the current post type in your callback function that renders the submenu page output. And at this point there is a lot of information ready: add_action( ‘admin_menu’, ‘wpse_60730_demo_submenu’ ); /** * Register sub menu pages. * * Note that get_current_screen() is still NULL now. * * @wp-hook admin_menu * @return … Read more
Plugins are activated in a sandbox and their output is captured to check for errors, and redirect if activation was successful. Adding something in an activation hook will cause it to run once in that “invisible” sandbox on activation, and that’s it. When you add an action, you’re only adding it for that request, if … Read more
For your particular situation, where you need to have a menu registered, but not shown unless you click on it from a link on another page you can add a conditional check to see if you’re on the editing page. If so, then change replace null with book per the add_submenu_page() parameters. add_action( ‘admin_menu’, ‘add_the_menus’ … Read more
You only need one callback function, as defined in your call to register_setting() (Codex ref.): register_setting( $option_group, $option_name, $sanitize_callback ); Thus, all options are contained in an array, in a single database entry, $option_name. Then, the callback function is passed the $input variable that holds all of the form-submitted data, the function manipulates/sanitizes those data, … Read more