OGRErr OGRLayerWithTransaction::DeleteField( int iField ) { if( !m_poDecoratedLayer ) return OGRERR_FAILURE; OGRErr eErr = m_poDecoratedLayer->DeleteField(iField); if( m_poFeatureDefn && eErr == OGRERR_NONE ) m_poFeatureDefn->DeleteFieldDefn(iField); return eErr; }
bool OGRGeoJSONReader::GenerateFeatureDefn( json_object* poObj ) { OGRFeatureDefn* poDefn = poLayer_->GetLayerDefn(); CPLAssert( NULL != poDefn ); bool bSuccess = false; /* -------------------------------------------------------------------- */ /* Read collection of properties. */ /* -------------------------------------------------------------------- */ json_object* poObjProps = NULL; poObjProps = OGRGeoJSONFindMemberByName( poObj, "properties" ); if( NULL != poObjProps && json_object_get_type(poObjProps) == json_type_object ) { if (bIsGeocouchSpatiallistFormat) { poObjProps = json_object_object_get(poObjProps, "properties"); if( NULL == poObjProps || json_object_get_type(poObjProps) != json_type_object ) { return true; } } json_object_iter it; it.key = NULL; it.val = NULL; it.entry = NULL; json_object_object_foreachC( poObjProps, it ) { int nFldIndex = poDefn->GetFieldIndex( it.key ); if( -1 == nFldIndex ) { /* Detect the special kind of GeoJSON output by a spatiallist of GeoCouch */ /* such as http://gd.iriscouch.com/cphosm/_design/geo/_rewrite/data?bbox=12.53%2C55.73%2C12.54%2C55.73 */ if (strcmp(it.key, "_id") == 0) bFoundId = true; else if (bFoundId && strcmp(it.key, "_rev") == 0) bFoundRev = true; else if (bFoundRev && strcmp(it.key, "type") == 0 && it.val != NULL && json_object_get_type(it.val) == json_type_string && strcmp(json_object_get_string(it.val), "Feature") == 0) bFoundTypeFeature = true; else if (bFoundTypeFeature && strcmp(it.key, "properties") == 0 && it.val != NULL && json_object_get_type(it.val) == json_type_object) { if (bFlattenGeocouchSpatiallistFormat < 0) bFlattenGeocouchSpatiallistFormat = CSLTestBoolean( CPLGetConfigOption("GEOJSON_FLATTEN_GEOCOUCH", "TRUE")); if (bFlattenGeocouchSpatiallistFormat) { poDefn->DeleteFieldDefn(poDefn->GetFieldIndex("type")); bIsGeocouchSpatiallistFormat = true; return GenerateFeatureDefn(poObj); } } OGRFieldDefn fldDefn( it.key, GeoJSONPropertyToFieldType( it.val ) ); poDefn->AddFieldDefn( &fldDefn ); } else { OGRFieldDefn* poFDefn = poDefn->GetFieldDefn(nFldIndex); OGRFieldType eType = poFDefn->GetType(); if( eType == OFTInteger ) { OGRFieldType eNewType = GeoJSONPropertyToFieldType( it.val ); if( eNewType == OFTReal ) poFDefn->SetType(eNewType); } } } bSuccess = true; // SUCCESS }