Re: Using an extension in a detector

Hi Tom:

In message <SN6PR08MB478462BA54ADFE1FB9364270CAF90@SN6PR08MB4784.namprd08.prod.
outlook.com>,
Tom Ekberg writes:
>I wrote simple function in an extension that I normally use in files
>like html/page.html. I'd also like to call that function in a
>detector. The error I get is that the utils package isn't defined. I
>also tried 'import utils' but it didn't work either. Removing the
>package from the function call also didn't work.

I think the utils class/variable whatever... is defined only in the
templates.

I have two solutions. I am not sure if this will work, but try:

Create a lib directory in the tracker home.

Put the function:

>def user_in_group(db, group):
>    return sorted([str(u.username) for u in db['user'].list() if group in str(u.organisation).split(',')])

in the file lib/library_func.py

Then in extension_file.py add:

  from library_func import user_in_group
 
  def init(instance):
    instance.registerUtil('user_in_group', user_in_group)

For use in the detector add:

     from library_func import user_in_group

and your call to:

>    nosy_people = utils.user_in_group(db, 'nosy')

should work.

>What import do I need to be able to call an extension function from a
>detector?

I am not sure if TRACKER_HOME/extensions is in the load path like
TRACKER_HOME/lib. If it is you should be able to add:

  from extension_file import user_in_group

to the detector and gain access to the user_in_group() function.

You could also experiment with:

    from extensions.extension_file import user_in_group

Let us know what works.

Have a great day.

--
				-- rouilj
John Rouillard
===========================================================================
My employers don't acknowledge my existence much less my opinions.