public bool TryLockDocument(Item item, User user)
{
lock (documentLocker) {
User lockOwner = GetDocumentLockOwner(item);
if (lockOwner != null)
{
if (user.Id != lockOwner.Id)
{
return(false);
}
}
else
{
LockedDocumentRegistry.AddOrUpdate(item.Id, user, (itemId, oldUser) => user);
}
return(true);
}
}
