55 f = features.at( features.count() - 1 );
friend class QgsVectorLayerUndoPassthroughCommandAddFeatures
friend class QgsVectorLayerUndoPassthroughCommandDeleteAttribute
bool deleteAttribute(int attr) override
Delete an attribute field (but does not commit it)
QSet< QgsFeatureId > QgsFeatureIds
QList< QgsFeature > QgsFeatureList
bool addFeature(QgsFeature &f) override
Adds a feature.
A geometry is the spatial representation of a feature.
Undo command for vector layer in transaction group mode.
bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant()) override
Changed an attribute value (but does not commit it)
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
friend class QgsVectorLayerUndoPassthroughCommandUpdate
bool addFeatures(QgsFeatureList &features) override
Insert a copy of the given features into the layer (but does not commit it)
bool update(QgsTransaction *transaction, const QString &sql, const QString &name)
Update underlying data with a SQL query embedded in a transaction.
bool deleteFeatures(const QgsFeatureIds &fids) override
Deletes a set of features from the layer (but does not commit it)
QMap< int, QVariant > QgsAttributeMap
void rollBack() override
Stop editing and discard the edits.
bool addAttribute(const QgsField &field) override
Add an attribute field (but does not commit it) returns true if the field was added.
Encapsulate a field in an attribute table or data source.
QgsFeatureList features() const
List of features (added feaures can be modified by default values from database)
bool isModified() const override
Returns true if the provider has been modified since the last commit.
bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues) override
Changes values of attributes (but does not commit it).
friend class QgsVectorLayerUndoPassthroughCommandAddAttribute
QgsVectorLayerEditPassthrough(QgsVectorLayer *layer)
bool hasError() const
Returns error status.
bool deleteFeature(QgsFeatureId fid) override
Delete a feature from the layer (but does not commit it)
friend class QgsVectorLayerUndoPassthroughCommandRenameAttribute
bool changeGeometry(QgsFeatureId fid, const QgsGeometry &geom) override
Change feature's geometry.
This class allows including a set of layers in a database-side transaction, provided the layer data p...
friend class QgsVectorLayerUndoPassthroughCommandDeleteFeatures
Undo command for adding a feature to a vector layer in transaction group mode.
friend class QgsVectorLayerUndoPassthroughCommandChangeAttributes
friend class QgsVectorLayerUndoPassthroughCommandChangeAttribute
bool renameAttribute(int attr, const QString &newName) override
Renames an attribute field (but does not commit it)
QUndoStack * undoStack()
Return pointer to layer's undo stack.
friend class QgsVectorLayerUndoPassthroughCommandChangeGeometry
void layerModified()
This signal is emitted when modifications has been done on layer.
Represents a vector layer which manages a vector based data sets.
bool commitChanges(QStringList &commitErrors) override
Attempts to commit any changes to disk.