Comments on: ColdFusion-ORM: Define Computed properties (formula attribute)

By: Raymond Camden

Raymond Camden — Sat, 21 Nov 2009 17:25:17 +0000

Forgive me – stupid mistake on my part. I forgot to refresh ORM for the application.

By: Raymond Camden

Raymond Camden — Sat, 21 Nov 2009 17:06:24 +0000

Ok, something wonky is up. I added data so I should get 1 back, but I’m getting an empty string back. I checked my HQL logging and no db call is being made.

By: Raymond Camden

Raymond Camden — Sat, 21 Nov 2009 16:49:17 +0000

Query – this seems to work ok, but I notice that when I have no data in the related table, I get back an empty string. Shouldn’t the count always return 0?

By: Manjukiran

Manjukiran — Thu, 20 Aug 2009 08:08:55 +0000

Tom, the SQL that gets generated is a parameterised query. But, even otherwise, I do not see any scope for injecting SQL as the SQL is just available in the metadata.

By: Tom Chiverton

Tom Chiverton — Tue, 18 Aug 2009 12:07:12 +0000

Cool. I assume when it runs the sql snippit it is a nice parametrised non-sql injecting query ?

By: Manjukiran

Manjukiran — Fri, 24 Jul 2009 10:21:52 +0000

Yes, John – you can have complex formulas like the one above.

By: John Whish

John Whish — Fri, 24 Jul 2009 10:10:16 +0000

Interesting. If I’m right, essentially this is shorthand for doing,

/**
* I return the number of items sold for this artist
* @output false
*/
public numeric function getNumberOfArts()
{
return ORMExecuteQuery(
“select Count(*) from Art art where art.ArtistId=:ArtistID”,
{ ArtistID=this.getArtistID() }
, True );
}

Can you do more complex formulas for example:

property name=”numberOfSoldArts”
formula=”select Count(*) from Art art where art.ArtistId=ArtistId and art.IsSold=True”;