I have a quite challenging question. Here is what I want to do:
All listings shall be visible to Public - but most of the information including all photos shall be hidden. Eg. Public shall only see an avatar instead of the picture. When a public user (or guest) clicks on the headline of a listing he can see the item but all tabs only show the message "Please login or register first". Just the short description shall be visible to guests. Nevertheless a public user shall be able to search/filter the listings. All search results shall be displayed as described above. When a user from a certain user group logs in he shall be able to see all information.
I know that this can be done with custom overrides. But I don't know which pieces of code I have to include in which file.
Thanks for your support!