Subform doesnt save / load the data correctly

[LordRazen]

Hello,

I try to store several ids from another view within a field in a certain order. Therefor, I initially created a custom field which allows to select multiple entries untill I recognized that this field doesnt save the order of the entries.

That's why I changed to a subform with one actual field in the subform.

If there's another, easier way - let me know.

However: I got the subform to work, I can select the values from the custom field which now doesnt allow multiple entries anymore. But it doesnt save the data correctly.

I've setup the field to Text / JSON so it's stored in the DB as Json, and actually a json string arrives in the database. But when it's loaded, it's not converted correcty in this piece of generated code in the getItem method:

if (!empty($item->datapacks))
{
// Convert the datapacks field to an array.
$datapacks = new Registry;
$datapacks->loadString($item->datapacks);
$item->datapacks = $datapacks->toArray();
}

Since I dont think the convertion is the problem, I wonder if the saved data is wrong already, but this also looks correct:
"{\"datapacks0\":{\"datapack\":\"128\"},\"datapacks1\":{\"datapack\":\"162\"}}"

Everything looks alright, but the data is not loaded again after clicking on "Save". Whatelse could I have dont wrong?

[LordRazen]

Ok I found the mistake myself: The subform field didnt need the JSON Modeling Method.

Removed it to Default - problem solved.