Wow Jolyon, thank you so much! I didn't know about the IsNew property and it is really interesting. I'm going to try this as soon as I can

Hi Jolyon, thanks for replying me. The questionnaire is added by API call but the problem is that this call happens in a lot of different integrations and classes and in many different ways (due to a previously bad code management there is not a single primitive class being invoked but several), so they basically asked me to somehow resolve the problem at its root and set the default value through an UDF. I don't know why the OnBeforeSave isn't triggered by the API call and this surprised me honestly, maybe is an issue related to the particular TrakCare version or to the Region/Edition code but I'm not allowed to fix/modify it unfortunately.
However, so you're saying that with an OnBeforeSave is possible to set/modify the %request value? Doing for example something like: 

set Q31 = %request.Get("Q31")
If ((Q31 = "") || (Q31 = 0)) {
    Set%request("Q31",1)=1
}

and the object will be saved with the overwritten value?

Hi Timo, thank you for your response and clarifications! As I wrote to Jolyon now is it clearer how %d and %old variables work in OnSQLTrigger UDFs.

Hi Jolyon, thanks for the clarifications. I'm quite experienced with Feature Framework but I've never worked with OnSQLTrigger UDFs and felt confused about them, mostly due to some information I received and probably misread. Now it is more clear and sounds logic to me that variables %d and %old can't be overwritten, as well as %response and %session, I suppose.

What I'm trying to do is to force the default value of a boolean property of a questionnaire to be 1 on insert. I was trying with OnSQLTrigger because I can't modify the Region model of the questionnaire to set a Custom default value, nor use an OnAfterSave UDF because I can't know if the questionnaire has never been inserted, and not even an OnBeforeSave because I noticed that, for whatever reason, TrakCare API calls don't trigger them. 

Hi David, unfortunately it is impossible to modify the initial expression of that value. Because of the TrakCare framework, the particular class whose property belongs is automatically generated and, I don't know if it is possible for core team, but I'm not allowed to modify it.

Hi Vachan, thanks for your reply. Unfortunately we don't always have SSH access to our clients' machines, so this can't be applied. With this question I intended if there is anything in VSCode lke the Export Project feature in Studio. 

Currently, the only solution I've found is building a custom API to do this and a UI to interact with it, but it must be installed on the machine. 

Hi Nicki,

I hope I will be able to publish soon the second part of this articles serie in which I describe how to setup the whole instance with web applications, namespaces, interoperability and databases through a manifest file.

Stay tuned.

Thanks Antonio, this is a great point! Maybe in the next version it will be possible

Hi Thomas,

I've just added it from the GitHub repository, I don't know why but it was missing, probably I forgot to include it when I wrote the article. Thanks for reporting it to me😊

Wow! This is awesome

You're welcome Olga! Stay tuned for the next part

Thank you Robert! Of course IRIS image is not only one but there are many, great point! 😊