private void SetRightsForItem(SPListItem item, List<RoleItem> roles, bool clear, bool expandUsers)
{
setRightsLog += item.FormUrlDisplay() + " | ClearRights:" + clear + " | ExpandUsers:" + expandUsers + "\n";
if (clear) item.RemoveRights();
foreach (RoleItem role in roles)
{
List<SPPrincipal> users = LoadUsers(item, role.For, expandUsers);
SPRoleDefinition spRole = item.Web.RoleDefinitions.Cast<SPRoleDefinition>().SingleOrDefault(r => r.Id == role.Role_Name);
if (spRole == null)
{
log.LogError("Could not find permisson level: '" + role + "'");
continue;
}
item.SetRights(users, spRole, false);
setRightsLog += spRole.Name + " : " + users.Select(l => l.LoginNameNormalized()).JoinStrings(", ") + "\n";
}
}