Delegate reading from QML nested list not updating - qt

Question

So I have created a nested list in QML:
ListModel {
id: players
ListElement {
name: "Player 1"
counters: [
ListElement {
name: "Life"
count: 20
edit: false
} ,
ListElement {
name: "Poison"
count: 0
edit: false
}
]
}
//etc...
}
And, I have two views that read data from this: a ListView that is given the first-level ListModel, and a GridView that reads from the counters second-level model. I have given the GridView the counters list through the attached property in the delegate, like so:
GridView {
model: counters
}
Initially, it reads the data just fine. But my problem is that when the second-level model data is updated from outside the delegate, the GridView does not update with the new data. How do I get it to update?
When looking around, I have seen other people just create two separate models, but the problem is that I need the information in the nested list to be associated with the ListElement that contains it, so that really is not an option.

Answer 1

It turns out that you have to catch the signal and change the property manually. It's a little brute-force (because it will run given any change in the model, not just changes from outside the delegate), but it works.
In order to do this, you have to add a Connections element to the view delegate to catch the signal.
GridView {
id: view
model: counters
delegate: Item {
property int count: count
Connections {
target: view
onDataChanged: Item.count = count
}
}
}
It is important that the Connections element is a child of the delegate, because the view creates/removes delegates at its whim, and as such it is difficult to access the delegates created by the view.