OGRFeature *OGRMDBLayer::GetNextRawFeature()
{
OGRErr err = OGRERR_NONE;
if( !poMDBTable->GetNextRow() )
return NULL;
/* -------------------------------------------------------------------- */
/* Create a feature from the current result. */
/* -------------------------------------------------------------------- */
int iField;
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
if( pszFIDColumn != NULL && poMDBTable->GetColumnIndex(pszFIDColumn) > -1 )
poFeature->SetFID(
poMDBTable->GetColumnAsInt(poMDBTable->GetColumnIndex(pszFIDColumn)) );
else
poFeature->SetFID( iNextShapeId );
iNextShapeId++;
m_nFeaturesRead++;
/* -------------------------------------------------------------------- */
/* Set the fields. */
/* -------------------------------------------------------------------- */
for( iField = 0; iField < poFeatureDefn->GetFieldCount(); iField++ )
{
int iSrcField = panFieldOrdinals[iField]-1;
char *pszValue = poMDBTable->GetColumnAsString( iSrcField );
OGRFieldType eType = poFeature->GetFieldDefnRef(iField)->GetType();
if( pszValue == NULL )
/* no value */;
else if( eType == OFTBinary )
{
int nBytes = 0;
GByte* pData = poMDBTable->GetColumnAsBinary( iSrcField, &nBytes);
poFeature->SetField( iField,
nBytes,
pData );
CPLFree(pData);
}
else if ( eType == OFTInteger && EQUAL(pszValue, "true"))
{
poFeature->SetField( iField, 1 );
}
else
{
poFeature->SetField( iField, pszValue );
}
CPLFree(pszValue);
}
if( !(m_poAttrQuery == NULL
|| m_poAttrQuery->Evaluate( poFeature )) )
return poFeature;
/* -------------------------------------------------------------------- */
/* Try to extract a geometry. */
/* -------------------------------------------------------------------- */
if( eGeometryType == MDB_GEOM_PGEO && iGeomColumn >= 0)
{
int nBytes = 0;
GByte* pData = poMDBTable->GetColumnAsBinary( iGeomColumn, &nBytes);
OGRGeometry *poGeom = NULL;
if( pData != NULL )
{
err = OGRCreateFromShapeBin( pData, &poGeom, nBytes );
if( OGRERR_NONE != err )
{
CPLDebug( "MDB",
"Translation shape binary to OGR geometry failed (FID=%ld)",
(long)poFeature->GetFID() );
}
}
CPLFree(pData);
if( poGeom != NULL && OGRERR_NONE == err )
{
poGeom->assignSpatialReference( poSRS );
poFeature->SetGeometryDirectly( poGeom );
}
}
else if( eGeometryType == MDB_GEOM_GEOMEDIA && iGeomColumn >= 0)
{
int nBytes = 0;
GByte* pData = poMDBTable->GetColumnAsBinary( iGeomColumn, &nBytes);
OGRGeometry *poGeom = NULL;
if( pData != NULL )
{
err = OGRCreateFromGeomedia( pData, &poGeom, nBytes );
if( OGRERR_NONE != err )
{
CPLDebug( "MDB",
"Translation geomedia binary to OGR geometry failed (FID=%ld)",
(long)poFeature->GetFID() );
}
}
CPLFree(pData);
if( poGeom != NULL && OGRERR_NONE == err )
{
poGeom->assignSpatialReference( poSRS );
poFeature->SetGeometryDirectly( poGeom );
}
}
return poFeature;
}
OGRFeature *OGRPGeoLayer::GetNextRawFeature()
{
OGRErr err = OGRERR_NONE;
if( GetStatement() == NULL )
return NULL;
/* -------------------------------------------------------------------- */
/* If we are marked to restart then do so, and fetch a record. */
/* -------------------------------------------------------------------- */
if( !poStmt->Fetch() )
{
delete poStmt;
poStmt = NULL;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create a feature from the current result. */
/* -------------------------------------------------------------------- */
int iField;
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
if( pszFIDColumn != NULL && poStmt->GetColId(pszFIDColumn) > -1 )
poFeature->SetFID(
atoi(poStmt->GetColData(poStmt->GetColId(pszFIDColumn))) );
else
poFeature->SetFID( iNextShapeId );
iNextShapeId++;
m_nFeaturesRead++;
/* -------------------------------------------------------------------- */
/* Set the fields. */
/* -------------------------------------------------------------------- */
for( iField = 0; iField < poFeatureDefn->GetFieldCount(); iField++ )
{
int iSrcField = panFieldOrdinals[iField]-1;
const char *pszValue = poStmt->GetColData( iSrcField );
if( pszValue == NULL )
/* no value */;
else if( poFeature->GetFieldDefnRef(iField)->GetType() == OFTBinary )
poFeature->SetField( iField,
poStmt->GetColDataLength(iSrcField),
(GByte *) pszValue );
else
poFeature->SetField( iField, pszValue );
}
/* -------------------------------------------------------------------- */
/* Try to extract a geometry. */
/* -------------------------------------------------------------------- */
if( pszGeomColumn != NULL )
{
int iField = poStmt->GetColId( pszGeomColumn );
GByte *pabyShape = (GByte *) poStmt->GetColData( iField );
int nBytes = poStmt->GetColDataLength(iField);
OGRGeometry *poGeom = NULL;
if( pabyShape != NULL )
{
err = OGRCreateFromShapeBin( pabyShape, &poGeom, nBytes );
if( OGRERR_NONE != err )
{
CPLDebug( "PGeo",
"Translation shape binary to OGR geometry failed (FID=%ld)",
(long)poFeature->GetFID() );
}
}
if( poGeom != NULL && OGRERR_NONE == err )
{
poGeom->assignSpatialReference( poSRS );
poFeature->SetGeometryDirectly( poGeom );
}
}
return poFeature;
}
