1. Doesn't work.
2. A decent chunk of code below, following the article referenced in my
previous mail:
public class ActivityPerfomedRepository : RepositoryBase<ActivityPerformed>
{
// some utility methods will go here
}
public class RepositoryBase<T> : IRepository<T> where T : IAggregateRoot
{
public T FindBy(int id)
{
return (T)ActiveRecordMediator.FindByPrimaryKey(typeof(T), id);
}
public IList<T> FindAll()
{
return (IList<T>)ActiveRecordMediator.FindAll(typeof(T));
}
public virtual void Save(T item)
{
ActiveRecordMediator.Save(item);
}
public virtual void Delete(T item)
{
ActiveRecordMediator.Delete(item);
}
public virtual void Update(T item)
{
ActiveRecordMediator.Update(item);
}
public virtual void Create(T item)
{
ActiveRecordMediator.Create(item);
}
}
public interface IRepository<T>
{
T FindBy(int id);
IList<T> FindAll();
void Save(T item);
void Delete(T item);
void Create(T item);
}
public interface IAggregateRoot
{
}
/Christian
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Patrick Steele
Sent: den 3 mars 2011 14:50
To: [email protected]
Subject: Re: Problems generating identity keys
1. Try using [PrimaryKey(Generator = PrimaryKeyType.Identity)] for you primary
key
2. If that doesn't work, you'll need to show us what
"_activityPerfomedRepository.Create(activityPerformed);" does.
---
Patrick Steele
http://weblogs.asp.net/psteele
On Thu, Mar 3, 2011 at 8:45 AM, Christian Axelsson <[email protected]> wrote:
> Hello,
>
>
>
> I have written a few AR classes using the repository pattern suggested
> at [1].
>
> For example I have:
>
>
>
> [ActiveRecord(Table = "ActivityPerformed", Schema = "dbo")]
>
> public class ActivityPerformed : IAggregateRoot
>
> {
>
> [PrimaryKey]
>
> public virtual int Id { get; private set; }
>
>
>
> [Property(NotNull = true)]
>
> public virtual DateTime Date { get; set; }
>
>
>
> [BelongsTo(Column = "ContractID", NotNull = true)]
>
> public virtual Contract Contract { get; set; }
>
>
>
> [Property(NotNull = true)]
>
> public virtual float Quantity { get; set; }
>
> }
>
>
>
> However when I try to create a new instance like this:
>
>
>
> var activityPerformed = new ActivityPerformed()
>
> {
>
> Contract =
> activityPerfomViewModel.Contract,
>
> Date =
> activityPerfomViewModel.Date,
>
> Quantity = quantity
>
> };
>
>
>
> using (new SessionScope(FlushAction.Auto))
>
> {
>
> _activityPerfomedRepository.Create(activityPerformed);
>
> }
>
>
>
> AR will throw an exception about inserting duplicate row because the
> ID, defaulted to 0, is already exist.
>
> The Id column in the database is an auto incrementing numeric on a SQL
> Server database and I've tried specified both PrimaryKeyType.Native
> and PrimaryKeyType.Identity but I get the same result.
>
>
>
> Any help is appreciated.
>
>
>
> /Christian
>
>
>
>
>
> [1]
> http://fatagnus.com/using-the-repository-pattern-with-activerecord-fro
> m-castle/
>
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