Example #1
0
void QgsOfflineEditing::applyAttributeValueChanges( QgsVectorLayer* offlineLayer, QgsVectorLayer* remoteLayer, sqlite3* db, int layerId, int commitNo )
{
  QString sql = QString( "SELECT \"fid\", \"attr\", \"value\" FROM 'log_feature_updates' WHERE \"layer_id\" = %1 AND \"commit_no\" = %2 " ).arg( layerId ).arg( commitNo );
  AttributeValueChanges values = sqlQueryAttributeValueChanges( db, sql );

  emit progressModeSet( QgsOfflineEditing::UpdateFeatures, values.size() );

  QMap<int, int> attrLookup = attributeLookup( offlineLayer, remoteLayer );

  for ( int i = 0; i < values.size(); i++ )
  {
    QgsFeatureId fid = remoteFid( db, layerId, values.at( i ).fid );

    remoteLayer->changeAttributeValue( fid, attrLookup[ values.at( i ).attr ], values.at( i ).value, false );

    emit progressUpdated( i + 1 );
  }
}
Example #2
0
void QgsOfflineEditing::applyFeaturesAdded( QgsVectorLayer* offlineLayer, QgsVectorLayer* remoteLayer, sqlite3* db, int layerId )
{
  QString sql = QString( "SELECT \"fid\" FROM 'log_added_features' WHERE \"layer_id\" = %1" ).arg( layerId );
  QList<int> newFeatureIds = sqlQueryInts( db, sql );

  // get new features from offline layer
  QgsFeatureList features;
  for ( int i = 0; i < newFeatureIds.size(); i++ )
  {
    QgsFeature feature;
    if ( offlineLayer->getFeatures( QgsFeatureRequest().setFilterFid( newFeatureIds.at( i ) ) ).nextFeature( feature ) )
    {
      features << feature;
    }
  }

  // copy features to remote layer
  emit progressModeSet( QgsOfflineEditing::AddFeatures, features.size() );

  int i = 1;
  int newAttrsCount = remoteLayer->pendingFields().count();
  for ( QgsFeatureList::iterator it = features.begin(); it != features.end(); ++it )
  {
    QgsFeature f = *it;

    // NOTE: Spatialite provider ignores position of geometry column
    // restore gap in QgsAttributeMap if geometry column is not last (WORKAROUND)
    QMap<int, int> attrLookup = attributeLookup( offlineLayer, remoteLayer );
    QgsAttributes newAttrs( newAttrsCount );
    QgsAttributes attrs = f.attributes();
    for ( int it = 0; it < attrs.count(); ++it )
    {
      newAttrs[ attrLookup[ it ] ] = attrs[ it ];
    }
    f.setAttributes( newAttrs );

    remoteLayer->addFeature( f, false );

    emit progressUpdated( i++ );
  }
}
void QgsOfflineEditing::applyFeaturesAdded( QgsVectorLayer* offlineLayer, QgsVectorLayer* remoteLayer, sqlite3* db, int layerId )
{
  QString sql = QString( "SELECT \"fid\" FROM 'log_added_features' WHERE \"layer_id\" = %1" ).arg( layerId );
  QList<int> newFeatureIds = sqlQueryInts( db, sql );

  // get new features from offline layer
  QgsFeatureList features;
  for ( int i = 0; i < newFeatureIds.size(); i++ )
  {
    QgsFeature feature;
    if ( offlineLayer->featureAtId( newFeatureIds.at( i ), feature, true, true ) )
    {
      features << feature;
    }
  }

  // copy features to remote layer
  mProgressDialog->setupProgressBar( tr( "%v / %m features added" ), features.size() );

  int i = 1;
  for ( QgsFeatureList::iterator it = features.begin(); it != features.end(); ++it )
  {
    QgsFeature f = *it;

    // NOTE: Spatialite provider ignores position of geometry column
    // restore gap in QgsAttributeMap if geometry column is not last (WORKAROUND)
    QMap<int, int> attrLookup = attributeLookup( offlineLayer, remoteLayer );
    QgsAttributeMap newAttrMap;
    QgsAttributeMap attrMap = f.attributeMap();
    for ( QgsAttributeMap::const_iterator it = attrMap.begin(); it != attrMap.end(); ++it )
    {
      newAttrMap.insert( attrLookup[ it.key()], it.value() );
    }
    f.setAttributeMap( newAttrMap );

    remoteLayer->addFeature( f, false );

    mProgressDialog->setProgressValue( i++ );
  }
}