This has a lot to do with the way Joomla! handles custom fields and how its Show On works. For the fields to show up correctly you need the control field and the value (controlled) fields i.e. the fields with the Show On attribute to be available in the frontend which means
a. its access needs to be Public (or an access level which ensures everyone who will be viewing the ticket is in a group included in this access level);
b. its Private Display must be set to No;
c. its Display When Read-Only must be set to Yes;
c. the control field's Automatic Display can be set to "Do not automatically display" to avoid displaying it in the frontend, but the same option for value fields must be set to any of the other available options.
The point about the control field is especially important! If the field's options make the value unavailable to the front-end, it will not be included in the ticket's jcfields object set by Joomla's fields plugin, therefore the fields whose display is controlled by the (now missing) value will not be displayed! This is never the case when editing a ticket because then a different code path in the core Joomla! code is followed, making all fields available.
Moreover, you must only use our own Show On attribute in the field's General tab, NOT the one in the field's Options tab. The latter is controlled by Joomla! itself and it's unsuitable for use with ATS as it does not understand the concept of private tickets. Unfortunately, that's not something we can hide when you are editing a field. That's a limitation in how Joomla! works. Yep, the Fields and Field Groups pages of our component... are not our component. They are Joomla's com_fields component. Just like the Categories page is not our page, it's Joomla's com_categories component. I am not saying it's a perfect solution, but it's definitely better than having us try to reinvent all those features like we were doing in ATS 4 and earlier...
Please check the documentation example to understand how it's supposed to work. This is the setup I have on my dev sites, Joomla! 4.4 and 5.0 at the moment, and it works correctly.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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