We have now opened a commercial services section here on the forum for registered users. If you have a Fabrik project that you wish to have someone work on for you, post it under Help Wanted. If you are an application developer and wish to earn some money helping others, post your details under Fabrik Application Developers.
Both of these are unmoderated. It will be up to both parties to work out the details and come to an agreement.
For running J!5.1 you must https://fabrikar.com/forums/index.php?wiki/update-from-github/ or include the new file manually https://fabrikar.com/forums/index.php?threads/joomla-5-1-and-fabrik-cannot-find-files-error.54473/post-285151 See also Announcements
if what you are trying to do is update an element with the value of an FK we assign during form submission, then you can't do that in jQuery, you'd have to do it in PHP, in a form submission script, using the 'onAfterProcess' hook, so your code runs AFTER we've saved the joined rows, and hence have the newly created row ID available.
-- hugh
The PHP code would be very specific to your site and it would be reference your elements. Therefore this isn't something we can simply just write and hand over to you.
There are many examples of code simliar to what you need but you may want to consider a short term silver subscription or offer out some paid work.
As I said before though, some of the code will be very specific to your site. This will be the database, element and \ or placeholder names.
I would really like to help you out here, but I need to re-create the setup, something I just don't have time for at the moment.
Please be patient with your replies as well, bumping your posts every few hours doesn't speed things up.