On Sun, Sep 14, 2008 at 5:30 PM, Pascal Craponne <[EMAIL PROTECTED]> wrote:
> - A few core features are missing (outer joins, references loading, lazy
> loading)
>
On Sun, Sep 14, 2008 at 8:14 PM, Matthew Snyder
<[EMAIL PROTECTED]>wrote:
> I was curious about the lazy/reference loading since I didn't see it
>
working. I just assumed I was doing something wrong. It'll be great to
>
help in any way I can.
>
Hi!
Regards lazy/reference loading we can distinguish two types:
1 - EntitySet lazy/reference loading
2 - EntityRef lazy/reference loading
The first one has been implemented during the summer (or at least a first
approximation), until now it seems work properly, you can see it in
ReadTest_EntitySet.SimpleMemberAccess01 and 02.
The second one was partially implemented during the summer but not
committed, this night I have taken it up again and I have finished the work,
it seems work fine (r882).
The following test work properly on mssql :-). It is a pleasure to navigate
easily through entities:
public void ReferenceLoading01()
{
var db = CreateDB();
var order = db.Orders.First();
//EntityRef
Assert.IsNotNull(order.Employee);
}
[Test]
public void ReferenceLoading02()
{
var db = CreateDB();
var c = db.Customers.First();
//EntitySet+EntityRef
Assert.IsNotNull(c.Orders.First().Employee);
}
[Test]
public void ReferenceLoading03()
{
var db = CreateDB();
var employeeTerritory = db.EmployeeTerritories.First();
//EntityRef+EntityRef+MemberAccess
Assert.IsNotNull(employeeTerritory.Territory.Region.RegionID);
}
Other comments:
· When an entity is created by the DataContext EntitySet and EntityRefs
properties are set or configured (but not retrieved from the database) .
· Maybe there will be problems with entities with multiples PKs. It should
be interesting put some 'orders_details inserts' into our database-scripts
and make more tests.
Suggestions and corrections are welcome.
Regards.
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