I have added a custom post type "Review", and a custom role "Reviewer". The issue is when logged as admin I take review which current author is admin and I want to change author to a Reviewer I have no options in dropdown besides admin. When I change a post whose author is a Reviewer, I have 2 options in dropdown: the current author and admin. Other Reviewers are not visible.

here is a part with capabilities

'capabilities' => array(
    'edit_post' => 'edit_review',
    'edit_others_posts' => 'edit_others_reviews',
    'publish_posts' => 'publish_reviews',
    'read_post' => 'read_swpd_review',
    'read_private_posts' => 'read_private_reviews',
    'delete_post' => 'delete_swpd_review'

and setting new role

/* Add guest author role to the blog */
add_role('reviewer', 'Reviewer', array('edit_review','read_review','delete_review'));

//add capabilities for admin
$role_object = get_role( 'administrator' );
$role_object->add_cap( 'read_review' );
$role_object->add_cap( 'edit_review' );
$role_object->add_cap( 'delete_review' );
$role_object->add_cap( 'publish_reviews' );
$role_object->add_cap( 'edit_others_reviews' );
//set level for reviewer (should fix a dropdown bug)
$role_object = get_role( 'reviewer' );

Is it a matter of capabilities? What could be wrong?


The role "Reviewer" only has special capabilities, no other capabilities. To get into the author list you have to be at least a contributor or author.

function rb_addroles() {
    $role = get_role('contributor');
    remove_role( 'reviewer' );
    add_role( 'reviewer', 'Reviewer', $role->capabilities );

    $reviewer = get_role('reviewer');

    $reviewer->add_cap( 'edit_review' );
    $reviewer->add_cap( 'read_review' );
    $reviewer->add_cap( 'delete_review' );
add_action( 'admin_init', 'rb_addroles' );

With this function a reviewer has contributor capabilities plus your special reviewer capabilities. You can change contributor in author to give them also editable powers in the back-end.

Btw you have to run the script only once, preferable in a plugin or functions.php with logged in admin account.

You can check the role by:

$reviewer = get_role('reviewer');
  • This seemd to be a good idea but it did not work :( I think you have a small error in your code. Instead $reviewer = get_role('editor'); you should have $reviewer = get_role('reviewer');, but fixing this did not help.
    – HoGo
    Jan 2 '13 at 22:09
  • You're right on editor > reviewer. I tested it on my WP install and there the role is successfully added with the custom capabilities. What doesn't work right now? Jan 2 '13 at 23:11
  • Still the same. Entering a custom post clicking dropdown for changing the author and only admin is available. I use this in plugin and I have included your function in main file.
    – HoGo
    Jan 2 '13 at 23:24
  • Can you update the user (just go the the user with role "Reviewer" and click update user) and see if the user than pops up @ author dropdown? Jan 2 '13 at 23:33
  • No, it does not :(
    – HoGo
    Jan 2 '13 at 23:41

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