horch004

I have added the following filter to my utility plugin.

$__wpdm_all_roles = null;
add_filter('wpdm_allowed_roles', function ($roles, $id) {

	$roles = get_post_meta($id, '__wpdm_access', true);
	$roles = maybe_unserialize($roles);
	
	if(!is_array($roles)) {
		$roles = array();
		
		$current_term = get_term_by('slug', get_query_var( 'term' ), 'wpdmcategory');
		if ($current_term) {
			$roles = \WPDM\libs\CategoryHandler::GetAllowedRoles($current_term->term_id);
		} else {
			$cats = get_the_terms( $id, 'wpdmcategory' );
			if (is_array($cats)){
				foreach($cats as $cat){
					$croles = \WPDM\libs\CategoryHandler::GetAllowedRoles($cat->term_id);
					$roles = array_merge($roles, $croles);
				}
			} else {
				$roles[] = 'guest';
			}
		}
	}
	$roles = array_unique($roles);
	
	if (count($roles) == 1) {
		/*
		 * Take this one role as starting point in a hierarchical roles array of all WP roles.
		 * We assume the WP roles array stays in a hierarchical order from most to least permissive.
		 * 
		 * We're going to add roles which are more permissive than this defined one.
		 */

		if (!$__wpdm_all_roles) {
			
			$__wpdm_all_roles = array();
			
			global $wp_roles;
			foreach ($wp_roles->get_names() as $role ► $name) {
				$__wpdm_all_roles[] = $role;
			}
			//$__wpdm_all_roles = array_reverse($__wpdm_all_roles);
			$__wpdm_all_roles[] = 'guest';
		}
		
		// search this one role in the array with all role names
		$index = array_search($roles[0], $__wpdm_all_roles);
		if ($index !== FALSE) { // found it
			// the roles before this one are more permissive. so, add these to the array
			while ($index) {
				$roles[] = $__wpdm_all_roles[--$index];
			}
		}
		
	}
	
	return $roles;
}, 10, 2);