I have no struct for item. Thought if I create it in the database and add attributes that it would be sufficiently defined with that. I pick Codegen: Class Definition This is what I got:

I pick Codegen: Class Definition for Item.

I have tested a few things again. And according to the print statements the problem is that the EditSheet gets the wrong id passed and inside the EditSheet everything fits with the ID. item ID for Edit: 2E5B0F87-362B-4E77-8AC0-95EF1ED18AC0 id during the press of the save button at the edit view: 66C8A3FD-0980-44BD-AE7D-8411D7A07A9C id to update: 66C8A3FD-0980-44BD-AE7D-8411D7A07A9C <Item: 0x600001eb87d0> (entity: Item; id: 0x9b04be453a90c036 x-coredata://8BCB76FB-F8F2-43CE-B703-1E6C1BB03811/Item/p11; data: {     id = "66C8A3FD-0980-44BD-AE7D-8411D7A07A9C";     liste =     (     );     name = D;     timestamp = nil; })

I pasted this line of code from you and instead of "T" : "F" I left the string empty with "" : "". And now it works. I don't know exactly why, but it works. Thank you very much for your help. You have helped me a lot!

Hello Jack, thanks for the feedback. The data model looks like this: I have the folder Data. In this folder are two subfolders: Clothing and Technology. In the Clothes folder there are many individual text files containing T-shirt, pants, socks, cap, etc.. . In technology with the content camera, notebook, battery, etc.... . I have trained it so that if I enter camera with technology is output, or if I enter pants me clothing is output. But I would like to have it so that if I have a category in the app with the name clothing me the different clothes should be output. Because the app should work in such a way that you can create equipment lists and you are given suggestions for the content for each category to help you. As support. When I bag clothes, for example, socks should be suggested to me, or pants. Janik