QGIS API Documentation  3.27.0-Master (aef1b1ec20)
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1 /***************************************************************************
2  qgsvectorlayereditpassthrough.h
3  ---------------------
4  begin : Jan 12 2015
5  copyright : (C) 2015 by Sandro Mani
6  email : manisandro at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
18 #include "qgis_core.h"
21 class QgsVectorLayer;
23 class QgsTransaction;
25 #ifdef SIP_RUN
26 % ModuleHeaderCode
28 % End
29 #endif
36 {
38 #ifdef SIP_RUN
40  if ( qobject_cast<QgsVectorLayerEditPassthrough *>( sipCpp ) )
41  sipType = sipType_QgsVectorLayerEditPassthrough;
42  else
43  sipType = nullptr;
45 #endif
48  public:
50  bool isModified() const override;
51  bool addFeature( QgsFeature &f ) override;
52  bool addFeatures( QgsFeatureList &features ) override;
53  bool deleteFeature( QgsFeatureId fid ) override;
54  bool deleteFeatures( const QgsFeatureIds &fids ) override;
55  bool changeGeometry( QgsFeatureId fid, const QgsGeometry &geom ) override;
56  bool changeAttributeValue( QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue = QVariant() ) override;
63  bool changeAttributeValues( QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues ) override;
65  bool addAttribute( const QgsField &field ) override;
66  bool deleteAttribute( int attr ) override;
67  bool renameAttribute( int attr, const QString &newName ) override;
68  bool commitChanges( QStringList &commitErrors ) override;
69  void rollBack() override;
82  bool update( QgsTransaction *transaction, const QString &sql, const QString &name );
84  private:
85  bool mModified;
87  // utility function to avoid cpy/paste
88  bool modify( QgsVectorLayerUndoPassthroughCommand *cmd );
90 };
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
Encapsulate a field in an attribute table or data source.
Definition: qgsfield.h:51
A geometry is the spatial representation of a feature.
Definition: qgsgeometry.h:125
This class allows including a set of layers in a database-side transaction, provided the layer data p...
virtual bool deleteFeature(QgsFeatureId fid)
Delete a feature from the layer (but does not commit it)
virtual bool renameAttribute(int attr, const QString &newName)
Renames an attribute field (but does not commit it)
virtual bool deleteFeatures(const QgsFeatureIds &fid)
Deletes a set of features from the layer (but does not commit it)
virtual bool addAttribute(const QgsField &field)
Adds an attribute field (but does not commit it) returns true if the field was added.
virtual bool addFeatures(QgsFeatureList &features)
Insert a copy of the given features into the layer (but does not commit it)
virtual bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues)
Changes values of attributes (but does not commit it).
virtual bool isModified() const
Returns true if the provider has been modified since the last commit.
virtual bool addFeature(QgsFeature &f)
Adds a feature.
virtual void rollBack()
Stop editing and discard the edits.
virtual bool commitChanges(QStringList &commitErrors)
Attempts to commit any changes to disk.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it)
virtual bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changed an attribute value (but does not commit it)
virtual bool changeGeometry(QgsFeatureId fid, const QgsGeometry &geom)
Change feature's geometry.
Undo command for vector layer in transaction group mode.
Represents a vector layer which manages a vector based data sets.
Definition: qgis_sip.h:186
#define SIP_END
Definition: qgis_sip.h:203
QMap< int, QVariant > QgsAttributeMap
Definition: qgsattributes.h:38
QList< QgsFeature > QgsFeatureList
Definition: qgsfeature.h:882
QSet< QgsFeatureId > QgsFeatureIds
Definition: qgsfeatureid.h:37
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
Definition: qgsfeatureid.h:28
const QgsField & field
Definition: qgsfield.h:463