void QgsAfsSourceSelect::buildQuery( const QgsOwsConnection &connection, const QModelIndex& index )
{
if ( !index.isValid() )
{
return;
}
QModelIndex filterIndex = index.sibling( index.row(), 4 );
QString id = index.sibling( index.row(), 0 ).data().toString();
// Query available fields
QgsDataSourceUri ds = connection.uri();
QString url = ds.param( "url" ) + "/" + id;
ds.removeParam( "url" );
ds.setParam( "url", url );
QgsAfsProvider provider( ds.uri() );
if ( !provider.isValid() )
{
return;
}
//show expression builder
QgsExpressionBuilderDialog d( 0, filterIndex.data().toString() );
//add available attributes to expression builder
QgsExpressionBuilderWidget* w = d.expressionBuilder();
w->loadFieldNames( provider.fields() );
if ( d.exec() == QDialog::Accepted )
{
QgsDebugMsg( "Expression text = " + w->expressionText() );
mModelProxy->setData( filterIndex, QVariant( w->expressionText() ) );
}
}
QString QgsAmsSourceSelect::getLayerURI( const QgsOwsConnection &connection,
const QString &layerTitle, const QString & /*layerName*/,
const QString &crs,
const QString & /*filter*/,
const QgsRectangle & /*bBox*/, const QString &layerId ) const
{
QgsDataSourceUri ds = connection.uri();
QString url = layerTitle;
QString trimmedUrl = layerId.isEmpty() ? url : url.left( url.length() - 1 - layerId.length() ); // trim '/0' from end of url -- AMS provider requires this omitted
ds.removeParam( QStringLiteral( "url" ) );
ds.setParam( QStringLiteral( "url" ), trimmedUrl );
ds.setParam( QStringLiteral( "layer" ), layerId );
ds.setParam( QStringLiteral( "crs" ), crs );
ds.setParam( QStringLiteral( "format" ), getSelectedImageEncoding() );
return ds.uri();
}
QString QgsAfsSourceSelect::getLayerURI( const QgsOwsConnection& connection,
const QString& layerTitle, const QString& /*layerName*/,
const QString& crs,
const QString& filter,
const QgsRectangle& bBox ) const
{
QgsDataSourceUri ds = connection.uri();
QString url = ds.param( "url" ) + "/" + layerTitle;
ds.removeParam( "url" );
ds.setParam( "url", url );
ds.setParam( "filter", filter );
ds.setParam( "crs", crs );
if ( !bBox.isEmpty() )
{
ds.setParam( "bbox", QString( "%1,%2,%3,%4" ).arg( bBox.xMinimum() ).arg( bBox.yMinimum() ).arg( bBox.xMaximum() ).arg( bBox.yMaximum() ) );
}
return ds.uri();
}
