WordPress SEO by Yoast: Hide Meta boxes in posts for non-admins

Question

I have multi-author website and I am not very comfortable for allowing all members to enter SEO details in the posts they are publishing. I would like this would be visible only to Administrator of the website. Any ideas?

Answer 1

It didn't say in the API docs on the Yoast SEO plugin site what the ID was and I don't have a copy of Yoast at installed at disposal, but according to yoas-plugin-dir/admin/class-metabox.php line 144, the meta_box registered is;

add_meta_box( 'wpseo_meta', ...etc ); ...

Which is hooked onto add_meta_boxes hook on line 32 of the same file,

add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ) );

Of course you could get the ID from the meta box itself on the post edit screen... Anyway.

You can do the following,

add_action('add_meta_boxes', 'yoast_is_toast', 99);
function yoast_is_toast(){
    //capability of 'manage_plugins' equals admin, therefore if NOT administrator
    //hide the meta box from all other roles on the following 'post_type' 
    //such as post, page, custom_post_type, etc
    if (!current_user_can('activate_plugins')) {
        remove_meta_box('wpseo_meta', 'post_type', 'normal');
    }
}

...where post type is the post type you wish to apply this restriction too, such as post or a custom post type one or more!

Should do the trick.

_{update: manage_plugins should have been activate_plugins - ammended.}

Answer 2

Try pasting this in a plugin or theme functions.php file, as per the WordPress SEO plugin (API Docs), by Yoast.

if(function_exists('wpseo_use_page_analysis') && !current_user_can('administrator')){
    add_filter('wpseo_use_page_analysis', '__return_false');
}

To avoid any errors... This checks to make sure the function exists, before attempting to hide stuff, allowing you to deactivate the plugin, and not throw errors.

You may need to hook into init for this to properly work, which could be done so like this:

function wpse_init(){
    if(function_exists('wpseo_use_page_analysis') && !current_user_can('administrator')){
        add_filter('wpseo_use_page_analysis', '__return_false');
    }   
}
add_action('init', 'wpse_init');

Answer 3

You can remove it using the remove_meta_box function.

if ( !current_user_can( 'edit_pages' ) ) {        
    add_action( 'add_meta_boxes', 'my_remove_wp_seo_meta_box' ), 100000 );
}

function remove_wp_seo_meta_box() {
    remove_meta_box( 'wpseo_meta', 'post', 'normal' );
}

Notice the 100000 in the add_action, this makes sure that this is done after the WP SEO metabox has been hooked in.

Answer 4

You can use the Adminimize plugin to hide items from users depending on their roles. Have used this myself to hide some Yoast SEO stuff from clients and simplifying the back end.

http://wordpress.org/extend/plugins/adminimize/

Pretty straight forward to use by adding the css selectors for the items you want to hide. Have used it to hide the SEO Page Analysis tabs (#linkdex)