QGIS API Documentation  3.4.15-Madeira (e83d02e274)
Classes | Public Types | Signals | Public Member Functions | List of all members
QgsOfflineEditing Class Reference

#include <qgsofflineediting.h>

Inheritance diagram for QgsOfflineEditing:
Inheritance graph
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Public Types

enum  ContainerType { SpatiaLite, GPKG }
 Type of offline database container file. More...
 
enum  ProgressMode {
  CopyFeatures = 0, ProcessFeatures, AddFields, AddFeatures,
  RemoveFeatures, UpdateFeatures, UpdateGeometries
}
 

Signals

void layerProgressUpdated (int layer, int numLayers)
 Is emitted whenever a new layer is being processed. More...
 
void progressModeSet (QgsOfflineEditing::ProgressMode mode, int maximum)
 Is emitted when the mode for the progress of the current operation is set. More...
 
void progressStarted ()
 The signal is emitted when the process has started. More...
 
void progressStopped ()
 Emitted when the processing of all layers has finished. More...
 
void progressUpdated (int progress)
 Emitted with the progress of the current mode. More...
 
void warning (const QString &title, const QString &message)
 Emitted when a warning needs to be displayed. More...
 

Public Member Functions

 QgsOfflineEditing ()
 
bool convertToOfflineProject (const QString &offlineDataPath, const QString &offlineDbFile, const QStringList &layerIds, bool onlySelected=false, ContainerType containerType=SpatiaLite)
 Convert current project for offline editing. More...
 
bool isOfflineProject () const
 Returns true if current project is offline. More...
 
void synchronize ()
 Synchronize to remote layers. More...
 

Detailed Description

Definition at line 35 of file qgsofflineediting.h.

Member Enumeration Documentation

Type of offline database container file.

Enumerator
SpatiaLite 
GPKG 

Definition at line 52 of file qgsofflineediting.h.

Enumerator
CopyFeatures 
ProcessFeatures 
AddFields 
AddFeatures 
RemoveFeatures 
UpdateFeatures 
UpdateGeometries 

Definition at line 40 of file qgsofflineediting.h.

Constructor & Destructor Documentation

QgsOfflineEditing::QgsOfflineEditing ( )

Definition at line 63 of file qgsofflineediting.cpp.

Member Function Documentation

bool QgsOfflineEditing::convertToOfflineProject ( const QString &  offlineDataPath,
const QString &  offlineDbFile,
const QStringList &  layerIds,
bool  onlySelected = false,
ContainerType  containerType = SpatiaLite 
)

Convert current project for offline editing.

convert current project to offline project returns offline project file path

Parameters
offlineDataPathPath to offline db file
offlineDbFileOffline db file name
layerIdsList of layer names to convert
onlySelectedOnly copy selected features from layers where a selection is present
containerTypedefines the SQLite file container type like SpatiaLite or GPKG

Workflow:

  • copy layers to SpatiaLite
  • create SpatiaLite db at offlineDataPath
  • create table for each layer
  • add new SpatiaLite layer
  • copy features
  • save as offline project
  • mark offline layers
  • remove remote layers
  • mark as offline project

Definition at line 83 of file qgsofflineediting.cpp.

bool QgsOfflineEditing::isOfflineProject ( ) const

Returns true if current project is offline.

Definition at line 206 of file qgsofflineediting.cpp.

void QgsOfflineEditing::layerProgressUpdated ( int  layer,
int  numLayers 
)
signal

Is emitted whenever a new layer is being processed.

It is possible to estimate the progress of the complete operation by comparing the index of the current layer to the total amount numLayers.

void QgsOfflineEditing::progressModeSet ( QgsOfflineEditing::ProgressMode  mode,
int  maximum 
)
signal

Is emitted when the mode for the progress of the current operation is set.

Parameters
modeprogress mode
maximumtotal number of entities to process in the current operation
void QgsOfflineEditing::progressStarted ( )
signal

The signal is emitted when the process has started.

void QgsOfflineEditing::progressStopped ( )
signal

Emitted when the processing of all layers has finished.

void QgsOfflineEditing::progressUpdated ( int  progress)
signal

Emitted with the progress of the current mode.

Parameters
progresscurrent index of processed entities
void QgsOfflineEditing::synchronize ( )

Synchronize to remote layers.

Definition at line 211 of file qgsofflineediting.cpp.

void QgsOfflineEditing::warning ( const QString &  title,
const QString &  message 
)
signal

Emitted when a warning needs to be displayed.

Parameters
titletitle string for message
messageA descriptive message for the warning

The documentation for this class was generated from the following files: