C++ (Cpp) offlineFid Examples

Example #1

File: qgsofflineediting.cpp Project: biolds/Quantum-GIS

void QgsOfflineEditing::updateFidLookup( QgsVectorLayer* remoteLayer, sqlite3* db, int layerId )
{
  // update fid lookup for added features

  // get remote added fids
  // NOTE: use QMap for sorted fids
  QMap < QgsFeatureId, bool /*dummy*/ > newRemoteFids;
  QgsFeature f;

  QgsFeatureIterator fit = remoteLayer->getFeatures( QgsFeatureRequest().setFlags( QgsFeatureRequest::NoGeometry ).setSubsetOfAttributes( QgsAttributeList() ) );

  emit progressModeSet( QgsOfflineEditing::ProcessFeatures, remoteLayer->featureCount() );

  int i = 1;
  while ( fit.nextFeature( f ) )
  {
    if ( offlineFid( db, layerId, f.id() ) == -1 )
    {
      newRemoteFids[ f.id()] = true;
    }

    emit progressUpdated( i++ );
  }

  // get local added fids
  // NOTE: fids are sorted
  QString sql = QString( "SELECT \"fid\" FROM 'log_added_features' WHERE \"layer_id\" = %1" ).arg( layerId );
  QList<int> newOfflineFids = sqlQueryInts( db, sql );

  if ( newRemoteFids.size() != newOfflineFids.size() )
  {
    //showWarning( QString( "Different number of new features on offline layer (%1) and remote layer (%2)" ).arg(newOfflineFids.size()).arg(newRemoteFids.size()) );
  }
  else
  {
    // add new fid lookups
    i = 0;
    sqlExec( db, "BEGIN" );
    for ( QMap<QgsFeatureId, bool>::const_iterator it = newRemoteFids.begin(); it != newRemoteFids.end(); ++it )
    {
      addFidLookup( db, layerId, newOfflineFids.at( i++ ), it.key() );
    }
    sqlExec( db, "COMMIT" );
  }
}

Example #2

File: offline_editing.cpp Project: RealworldSystems/Quantum-GIS

void QgsOfflineEditing::updateFidLookup( QgsVectorLayer* remoteLayer, sqlite3* db, int layerId )
{
  // update fid lookup for added features

  // get remote added fids
  // NOTE: use QMap for sorted fids
  QMap < int, bool /*dummy*/ > newRemoteFids;
  QgsFeature f;
  remoteLayer->select( QgsAttributeList(), QgsRectangle(), false, false );

  mProgressDialog->setupProgressBar( tr( "%v / %m features processed" ), remoteLayer->featureCount() );

  int i = 1;
  while ( remoteLayer->nextFeature( f ) )
  {
    if ( offlineFid( db, layerId, f.id() ) == -1 )
    {
      newRemoteFids[ f.id()] = true;
    }

    mProgressDialog->setProgressValue( i++ );
  }

  // get local added fids
  // NOTE: fids are sorted
  QString sql = QString( "SELECT \"fid\" FROM 'log_added_features' WHERE \"layer_id\" = %1" ).arg( layerId );
  QList<int> newOfflineFids = sqlQueryInts( db, sql );

  if ( newRemoteFids.size() != newOfflineFids.size() )
  {
    //showWarning( QString( "Different number of new features on offline layer (%1) and remote layer (%2)" ).arg(newOfflineFids.size()).arg(newRemoteFids.size()) );
  }
  else
  {
    // add new fid lookups
    i = 0;
    sqlExec( db, "BEGIN" );
    for ( QMap<int, bool>::const_iterator it = newRemoteFids.begin(); it != newRemoteFids.end(); ++it )
    {
      addFidLookup( db, layerId, newOfflineFids.at( i++ ), it.key() );
    }
    sqlExec( db, "COMMIT" );
  }
}