The idea proposed by Matthias is to find a way to evaluate topological relations when creating a feature with relations. Ex: A pipe snapped to a network element could then be autmatically assigned in the form's relations foreign keys if the form was aware of which feature and vertices its geometry has been snapped to.
Work already started in QGIS master : https://github.com/qgis/QGIS/issues/4825
haubourg
commented
6 years ago
The idea proposed by Matthias is to find a way to evaluate topological relations when creating a feature with relations. Ex: A pipe snapped to a network element could then be autmatically assigned in the form's relations foreign keys if the form was aware of which feature and vertices its geometry has been snapped to. Work already started in QGIS master : https://github.com/qgis/QGIS/issues/4825