/**
* Remove capabilities from an existing role
*
* Usage: wpcom_vip_remove_role_caps( 'author', array( 'publish_posts' ) );
*
* @param string $role Role name
* @param array $caps Capabilities to remove from the role
*/
function wpcom_vip_remove_role_caps($role, $caps)
{
$filtered_caps = array();
foreach ((array) $caps as $cap) {
$filtered_caps[$cap] = false;
}
wpcom_vip_merge_role_caps($role, $filtered_caps);
}
/**
* Add new or change existing capabilities for a given role
*
* Usage: merge_role_caps( 'author', array( 'publish_posts' => false ) );
*
* @param string $role Role name
* @param array $caps Key/value array of capabilities for this role
*/
function merge_role_caps($role, $caps)
{
if (function_exists('wpcom_vip_merge_role_caps')) {
wpcom_vip_merge_role_caps($role, $caps);
} else {
global $wp_user_roles;
$role_obj = get_role($role);
if (!$role_obj) {
return;
}
$current_caps = (array) get_role_caps($role);
$new_caps = array_merge($current_caps, (array) $caps);
foreach ($new_caps as $cap => $role_can) {
if ($role_can) {
$role_obj->add_cap($cap);
} else {
$role_obj->remove_cap($cap);
}
}
if (isset($wp_user_roles[$role])) {
$wp_user_roles[$role]['capabilities'] = array_merge($current_caps, (array) $caps);
}
}
}
