Class: QgsTrackedVectorLayerTools

Vector layer tools subclass which “tracks” edits.

Class Hierarchy

Base classes

QgsVectorLayerTools	Used to handle basic editing operations on vector layers.
QObject

Methods

rollback	Delete all features which have been added via this object.
setVectorLayerTools	Set the vector layer tools that will be used to interact with the data

Virtual Methods

In PyQGIS, only methods marked as virtual can be safely overridden in a Python subclass of QgsTrackedVectorLayerTools. See the FAQ for more details.

addFeatureV2

This method calls the addFeature method of the backend QgsVectorLayerTools

class qgis.core.QgsTrackedVectorLayerTools

Bases: QgsVectorLayerTools

virtual addFeatureV2(self, layer: QgsVectorLayer | None, defaultValues: Dict[int, Any], defaultGeometry: QgsGeometry, context: QgsVectorLayerToolsContext)

This method calls the addFeature method of the backend QgsVectorLayerTools

Parameters:

• layer (Optional[QgsVectorLayer]) – The layer to which the feature should be added

• defaultValues (Dict[int, Any]) – Default values for the feature to add

• defaultGeometry (QgsGeometry) – A default geometry to add to the feature

• context (QgsVectorLayerToolsContext) -> (bool) – A context object to be used for e.g. to calculate feature expression-based values (since QGIS 3.38)

Returns:

• True in case of success, False if the operation failed/was aborted

• feature: A pointer to the feature

rollback(self)

Delete all features which have been added via this object.

setVectorLayerTools(self, tools: QgsVectorLayerTools | None)

Set the vector layer tools that will be used to interact with the data

Parameters:

tools (Optional[QgsVectorLayerTools])