Roles for Custom Post Types

Question

I created some custom post types, but I would like to hide them in the dashboard from Subscribers, Authors, and Editors (essentially, just allow administrators to access them).

Can I do this without installing a plugin?

Answer 1

I'm sure you could specify some capabilities while registering the Post Type itself. Although, here is a more robust version that can be used widely across the administration dashboard.

/**
 * Hide dashboard administrator menus from disallowed user roles.
 *
 * @author Michael Ecklund
 * @access public
 *
 * @return void
 */
public function hide_menus(){
    global $current_user, $menu;
    /* Set list of disallowed user roles. */
    $disallowed_roles = array('subscriber', 'author', 'editor');
    $disallowed = false;
    /* Check current user role against all disallowed roles. */
    foreach($disallowed_roles as $disallowed_role){
        /* Current user role must not be disallowed. */
        if(in_array($disallowed_role, $current_user->roles)){
            $disallowed = true;// User role disallowed.
            break;
        }
    }
    /* User passed the check. Bail before hiding the menu. */
    if($disallowed === false){
        return;
    }
    /* Set list of disallowed dashboard administration menus. */
    $restricted = array(
        __('INSERT MENU NAME HERE')// Text as it appears in the admin menu.
    );
    /* Attempt to hide admin menus. */
    foreach($menu as $index => $menu_data){
        if(in_array($menu_data[0], $restricted)){
            unset($menu[$index]);
        }
    }
}

In order to fire the function, you must add the action.

add_action('admin_menu', array($this, 'hide_menus'), 101);