#include <qgsvectorlayereditpassthrough.h>

Inheritance diagram for QgsVectorLayerEditPassthrough:

Public Member Functions
	QgsVectorLayerEditPassthrough (QgsVectorLayer *layer)
bool	addAttribute (const QgsField &field) override
	add an attribute field (but does not commit it) returns true if the field was added
bool	addFeature (QgsFeature &f) override
	Adds a feature.
bool	addFeatures (QgsFeatureList &features) override
	Insert a copy of the given features into the layer (but does not commit it)
bool	changeAttributeValue (QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant()) override
	changed an attribute value (but does not commit it)
bool	changeGeometry (QgsFeatureId fid, QgsGeometry *geom) override
	change feature's geometry
bool	commitChanges (QStringList &commitErrors) override
	Attempts to commit any changes to disk.
bool	deleteAttribute (int attr) override
	delete an attribute field (but does not commit it)
bool	deleteFeature (QgsFeatureId fid) override
	delete a feature from the layer (but does not commit it)
bool	isModified () const override
	Returns true if the provider has been modified since the last commit.
void	rollBack () override
	Stop editing and discard the edits.
Public Member Functions inherited from QgsVectorLayerEditBuffer
	QgsVectorLayerEditBuffer (QgsVectorLayer *layer)
	~QgsVectorLayerEditBuffer ()
const QList< QgsField > &	addedAttributes ()
	added attributes fields which are not commited
const QgsFeatureMap &	addedFeatures ()
	New features which are not commited.
const QgsChangedAttributesMap &	changedAttributeValues ()
	Changed attributes values which are not commited.
const QgsGeometryMap &	changedGeometries ()
	Changed geometries which are not commited.
const QgsAttributeList &	deletedAttributeIds ()
	deleted attributes fields which are not commited.
const QgsFeatureIds	deletedFeatureIds ()

Additional Inherited Members
Signals inherited from QgsVectorLayerEditBuffer
void	attributeAdded (int idx)
void	attributeDeleted (int idx)
void	attributeValueChanged (QgsFeatureId fid, int idx, const QVariant &)
void	committedAttributesAdded (const QString &layerId, const QList< QgsField > &addedAttributes)
void	committedAttributesDeleted (const QString &layerId, const QgsAttributeList &deletedAttributes)
	Signals emitted after committing changes.
void	committedAttributeValuesChanges (const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
void	committedFeaturesAdded (const QString &layerId, const QgsFeatureList &addedFeatures)
void	committedFeaturesRemoved (const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
void	committedGeometriesChanges (const QString &layerId, const QgsGeometryMap &changedGeometries)
void	featureAdded (QgsFeatureId fid)
void	featureDeleted (QgsFeatureId fid)
void	geometryChanged (QgsFeatureId fid, QgsGeometry &geom)
void	layerModified ()
	This signal is emitted when modifications has been done on layer.
Protected Slots inherited from QgsVectorLayerEditBuffer
void	undoIndexChanged (int index)
Protected Member Functions inherited from QgsVectorLayerEditBuffer
	QgsVectorLayerEditBuffer ()
void	handleAttributeAdded (int index)
	update added and changed features after addition of an attribute
void	handleAttributeDeleted (int index)
	update added and changed features after removal of an attribute
void	updateAttributeMapIndex (QgsAttributeMap &attrs, int index, int offset) const
	Updates an index in an attribute map to a new value (for updates of changed attributes)
void	updateChangedAttributes (QgsFeature &f)
	Update feature with uncommited attribute updates.
void	updateFeatureGeometry (QgsFeature &f)
	Update feature with uncommited geometry updates.
void	updateFields (QgsFields &fields)
void	updateLayerFields ()
Protected Attributes inherited from QgsVectorLayerEditBuffer
QgsVectorLayer *	L
QList< QgsField >	mAddedAttributes
	added attributes fields which are not commited
QgsFeatureMap	mAddedFeatures
	New features which are not commited.
QgsChangedAttributesMap	mChangedAttributeValues
	Changed attributes values which are not commited.
QgsGeometryMap	mChangedGeometries
	Changed geometries which are not commited.
QgsAttributeList	mDeletedAttributeIds
	deleted attributes fields which are not commited.
QgsFeatureIds	mDeletedFeatureIds
	Deleted feature IDs which are not commited.

Detailed Description

Definition at line 22 of file qgsvectorlayereditpassthrough.h.

Constructor & Destructor Documentation

QgsVectorLayerEditPassthrough::QgsVectorLayerEditPassthrough ( QgsVectorLayer * layer )

inline

Definition at line 26 of file qgsvectorlayereditpassthrough.h.

Member Function Documentation

bool QgsVectorLayerEditPassthrough::addAttribute ( const QgsField & field )

overridevirtual

add an attribute field (but does not commit it) returns true if the field was added

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 80 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::addFeature ( QgsFeature & f )

overridevirtual

Adds a feature.

Parameters

f	feature to add

Returns: True in case of success and False in case of error

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 20 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::addFeatures ( QgsFeatureList & features )

overridevirtual

Insert a copy of the given features into the layer (but does not commit it)

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 31 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::changeAttributeValue	(	QgsFeatureId	fid,
		int	field,
		const QVariant &	newValue,
		const QVariant &	oldValue = `QVariant()`
	)

overridevirtual

changed an attribute value (but does not commit it)

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 66 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::changeGeometry	(	QgsFeatureId	fid,
		QgsGeometry *	geom
	)

overridevirtual

change feature's geometry

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 54 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::commitChanges ( QStringList & commitErrors )

overridevirtual

Attempts to commit any changes to disk.

Returns the result of the attempt. If a commit fails, the in-memory changes are left alone.

This allows editing to continue if the commit failed on e.g. a disallowed value in a Postgres database - the user can re-edit and try again.

The commits occur in distinct stages, (add attributes, add features, change attribute values, change geometries, delete features, delete attributes) so if a stage fails, it's difficult to roll back cleanly. Therefore any error message also includes which stage failed so that the user has some chance of repairing the damage cleanly.

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 100 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::deleteAttribute ( int attr )

overridevirtual

delete an attribute field (but does not commit it)

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 90 of file qgsvectorlayereditpassthrough.cpp.

bool QgsVectorLayerEditPassthrough::deleteFeature ( QgsFeatureId fid )

overridevirtual

delete a feature from the layer (but does not commit it)

Reimplemented from QgsVectorLayerEditBuffer.

Definition at line 44 of file qgsvectorlayereditpassthrough.cpp.