I'm having trouble setting up custom subpanel like described in this blog:
Whatever I tried, it didn't seem to work.
The thing is since joinRaw() is deprecated I used jointTable() instead, query seems to produce results correctly, however, the generated subpanel displays only header with the count of rows retrieved from the query. When I click the header to expand the subpanel nothing happens. There's no error on front end.
This is the class (PaymentLink) that's supposed to mimic the relationship as instructed in the blog. Perhaps it helps you to put things in perspective