C++ (Cpp) QgsFields::clear Examples

Example #1

File: qgswfsprovider.cpp Project: MrBenjaminLeb/QGIS

bool QgsWFSProvider::describeFeatureType( QString& geometryAttribute, QgsFields& fields, QGis::WkbType& geomType )
{
  fields.clear();

  QgsWFSDescribeFeatureType describeFeatureType( mShared->mURI.uri() );
  if ( !describeFeatureType.requestFeatureType( mShared->mWFSVersion,
       mShared->mURI.typeName() ) )
  {
    QgsMessageLog::logMessage( tr( "DescribeFeatureType failed for url %1: %2" ).
                               arg( dataSourceUri() ).arg( describeFeatureType.errorMessage() ), tr( "WFS" ) );
    return false;
  }

  const QByteArray& response = describeFeatureType.response();

  QDomDocument describeFeatureDocument;
  QString errorMsg;
  if ( !describeFeatureDocument.setContent( response, true, &errorMsg ) )
  {
    QgsDebugMsg( response );
    QgsMessageLog::logMessage( tr( "DescribeFeatureType failed for url %1: %2" ).
                               arg( dataSourceUri() ).arg( errorMsg ), tr( "WFS" ) );
    return false;
  }

  if ( readAttributesFromSchema( describeFeatureDocument,
                                 geometryAttribute, fields, geomType ) != 0 )
  {
    QgsMessageLog::logMessage( tr( "DescribeFeatureType failed for url %1: %2" ).
                               arg( dataSourceUri() ).arg( tr( "failed retrieving attributes from schema" ) ), tr( "WFS" ) );
    return false;
  }

  return true;
}