How can you stop NHibernate (via ActiveRecord) adding this_. to a table name in a formula

Question

I'm using Castle ActiveRecord which uses NHibernate underneath and I've added a property with a formula as follows to one of my entities:

[Property(Formula = "CAST((select count(*) from [User] as u where u.Email = FriendEmail) as bit)")]
public bool FriendRegistered { get; set; }

The problem is that now any query for this entity fails because NHibernate adds this_. before User in the formula. This results in the following SQL:

CAST((select count(*) from this_.[User] as u where u.Email = this_.FriendEmail) as bit) as formula0_7_

I tried using a different table name just for testing and that worked fine so I guess it only affects tables that share a reserved word, such as "User".

I've tried using backticks to escape it, also tried removing the space between "from" and "[User]", and tried adding the schema (dbo.) all without success.

This sounds like a bug in NHibernate and I found this bug report which is similar: http://216.121.112.228/browse/NH-1617

I guess my question is: Is there a workaround to this or a setting somewhere or even a way to handle this that I don't know about?

We're using NH 2.1.2 and the MsSql2008Dialect Dialect.

Thanks in advance

Andy

Answer 1

At the end of that JIRA issue, Fabio mentions a RegisterKeyword("int") in the dialect, so I'd try adding RegisterKeyword("bit") as well.

Answer 2

As a workaround for this I ended up creating a View called AllUsers which just did a select * from [User] and then updated my formula to you AllUsers instead of [User].

A bit of a hack I know, but this might help others that did something working quickly.