public static IEnumerable<int> GetRolesForPermissions(int nodeId, NodePermissionsEnum permission)
        {
            var aclProvider = new AclProvider(new TreeProvider());

            var items = aclProvider.GetACLItems(nodeId);

            if (!DataHelper.IsEmpty(items))
            {
                var acls = items.Tables[0].Rows;

                foreach (DataRow acl in acls)
                {
                    var aclId = (int)acl["AclID"];

                    var roles = aclProvider.GetAllowedRoles(aclId, permission, "RoleID");

                    if (!DataHelper.IsEmpty(roles))
                    {
                        var allowedRoles = roles.Tables[0].Rows;

                        foreach (DataRow allowedRole in allowedRoles)
                        {
                            yield return (int)allowedRole["RoleID"];
                        }
                    }
                }
            }
        }