test your extension

hello

I am currently testing your extension. I find it interesting because it would allow me to display a message on another module as a test.
However, I've been asking for several weeks on different forums and I don't have an answer

I would like to test
1/ if the connected member has a contact form?
the "user_id" field of contact_details
2/ the category of the article visited
More simple I tried
$this->item->catid
$article->catid
but it doesn't work

I understand that you don't want to answer, but I'll give it a try.
Regards

Hi
Yes, I understand that it is a matter of context, because depending on where you are, the calls are different.
A generic example would have helped me because I don't know where to look!
Regards