Is the NumberFilter capable of filtering related record counts? #37
Description
Describe the bug
I have a table column that displays counts of related records and I'd like to be able to filter the table for a minimum or maximum value of that count.
To Reproduce
I'm using a TextColumn with the ->counts('') method to generate the number I'd like to sort
Expected behavior
I tried using the ->relationship() method but didn't see a way to get it to work.
If there IS a supported way to do this, maybe it would be good to add it as an example in the readme? I'd think it might be pretty common.
Thank you!