Maybe Generate only exists for PrimaryKey. I think it's better to
resort to the DB-engine for the autoincrement.
On 12 feb 2009, at 22:03, Martin Nilsson wrote:
> Where do I put this?
> Can't find the generate property. Is it possible with ActiveRecord
> or is it only possible with NHibernate?
> I thought it should be something like this:
>
> [Property(Insert = false, Update = false, Generate = true)]
> public int OrderId { get; set; }
>
> But Generate does not exist.
>
> On Thu, Feb 12, 2009 at 9:50 AM, Ayende Rahien <[email protected]>
> wrote:
> insert = false, update = false, generate = true.
>
>
> On Thu, Feb 12, 2009 at 10:43 AM, Martin Nilsson
> <[email protected]> wrote:
> I tried with Formula and update=false but no success
> Have to look into Formula a little bit more.
>
>
> On Thu, Feb 12, 2009 at 9:27 AM, Jimmy Shimizu <[email protected]
> > wrote:
>
> Wouldn't it be possible to have a
>
> [Field("some_auto_incrementing_field_in_db", Update = false)]
> public int OrderNumber;
>
> perhaps? I'm trying the Update = false thing right now myself, I'll
> let
> you know if I'm successful :)
>
>
> Martin Nilsson wrote:
> > Number 1, is that possible with AR? I can't have it as a primary key
> > but as a normal property. Tried a little bit with the Formula
> > parameter for PropertyAttribute but didn't had any progress there
> either.
> >
> > [ActiveRecord]
> > public class Order
> > {
> > [PrimaryKey(PrimaryKeyType.GuidComb)]
> > public Guid Id {get; set;}
> >
> > [Property(??)]
> > public int OrderNumber {get; set;}
> > }
> >
> > On Wed, Feb 11, 2009 at 3:29 PM, Ken Egozi <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > off the top of my head:
> > 1. you can set it as a readonly property, and have the DB
> initiate
> > the value (in SQL server use IDENTITY(1000, 1) ). I think you'd
> > need to set the field as int? so it won't try to save 0 to the
> DB
> > 2. call the DB when inserting to get the highest OrderNumber and
> > plus 1 it
> > 3. If you know for sure that only the application can access the
> > DB, you might consider setting a variable with the last
> > OrderNumber, increasing it when needed with an appropriate
> logging
> > mechanism.
> >
> >
> > On Wed, Feb 11, 2009 at 4:15 PM, Martin Nilsson
> > <[email protected] <mailto:[email protected]>> wrote:
> >
> > How do I best setup my active record class to have a natural
> > key. Instead of guid as order number I want a sequence that
> > starts with 10000 for example.
> >
> > [ActiveRecord]
> > public class Order
> > {
> > [PrimaryKey(PrimaryKeyType.GuidComb)]
> > public Guid Id {get; set;}
> >
> > [??]
> > public int OrderNumber {get; set;}
> > }
> >
> > Note that I will still have guid as id to keep track of if
> it
> > is saved or not but I want to show the customer a more
> > friendly order number.
> >
> >
> >
> >
> >
> > --
> > Ken Egozi.
> > http://www.kenegozi.com/blog
> > http://www.delver.com
> > http://www.musicglue.com
> > http://www.castleproject.org
> > http://www.gotfriends.co.il
> >
> >
> >
> >
> > >
>
>
>
>
>
>
>
>
>
>
> >
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