1.1 to 1.2 upgrade issues

Hi,

We have some code  that works without issue under the 1.1 version

We just attempted to move to 1.2

• We downloaded the 1.2 installer
• installed it
• change the project's reference to the new DLL

Once this was done I attempted to run the project and we now get an "object reference not set to an instance of an object" exception, which appears to be coming form the light speed innards.

 The LOC that the error is reported to occur on is:

[Transient]
protected |ModelClass| _|PrivateAttribute|= Repository.FindOne<|ModelClass|> (Entity.Attribute("|AttributeOnModelClass|") == "|ConstantStringFilter|");
(note: this has been obfuscated (everything between ||) as I can not post our actual code)

I would like to re-emphasize that this was, and indeed still does when the dll is switched back, working in 1.1. All classes have the correct attributes and are unchanged from the previous compile.

Ideally, rather than dealing with this specific error, I would like to know what changes have occurred between 1.1 and 1.2 that could cause this issue.
 

Hope you can help here, we are eager to upgrade.
Peter Stephenson
 

I would like to post a follow up to this. John-Daniel contacted me via email shortly after posting the above, as this was the easier way of debugging our issues- and was extreemely helpful- Thanks again!

In the interest of helping other people with this problem i'd like to post what was found.

 The issue was being caused by using the Find() Method on the Repository within the constructor of an class inheriting from Entity, while this works ok under 1.1 it does not appear to work under 1.2.

As was pointed out to me by John-Daniel there is now a hook that you can override- The AfterLoad method and here it is safe to run queries against your repository.

 i.e.

protected override void AfterLoad()
{
  //safe to do Repository.Find() / FindOne() calls here

  base.AfterLoad();
}

Peter