Is it possible to access data with a qml/html-widget of a other layer?
I want to show specific fields, which are stored in a second layer in some kind of table. I'm unsure where or how to begin.
If it's possible what widget-type would be better suited?
I have a geopackage with one point layer and a non-geom layer (just non-spatial data). The non-geom layer is a history of the point-layer. So when I update the data of the point layer, a trigger defined in the point-layer inserts automatically a history-entry with the former actual data of the point-layer.
Now I want to see in the point-layer (on a second tab) the history of the points in a table. In the history-table is the ID of the point-layer for the reference.
So I want to know, how can I access the history-layer from within an qml/html-widget of the point-layer.