C++ (Cpp) QgsExpression::acceptVisitor Examples

Example #1

File: qgswfsutils.cpp Project: coyotte508/Quantum-GIS

bool QgsWFSUtils::expressionToOGCFilter( QgsExpression& exp, QDomDocument& doc )
{
  doc.clear();
  QDomElement filterElem = doc.createElement( "Filter" );
  doc.appendChild( filterElem );

  QgsExpressionOGCVisitor v( doc, filterElem );
  exp.acceptVisitor( v );
  return v.result();
}

Example #2

bool QgsWFSUtils::expressionToOGCFilter( QgsExpression& exp, QDomDocument& doc )
{
  doc.clear();
  QDomElement filterElem = doc.createElement( "Filter" );
  filterElem.setAttribute( "xmlns:ogc", "http://www.opengis.net/ogc" );
  doc.appendChild( filterElem );

  QgsExpressionOGCVisitor v( doc, filterElem );
  exp.acceptVisitor( v );
  return v.result();
}