public function export(Export\ExportStream $stream, Export\ExportContext $context) {
$metamodel = data_controller_get_metamodel();
$datasetUuidMappings = array();
// get datasets
$datasetNids = array();
foreach ($metamodel->datasets as $dataset) {
$datasetUuidMappings[$dataset->source] = DatasetExportHelper::getExportDatasetName($dataset->name, $metamodel);
if (!isset($dataset->nid)) {
continue;
}
$datasetNids[] = $dataset->nid;
}
// find all references with above reference points
$measures = array();
if (!empty($datasetNids)) {
$measureNodes = gd_measure_get_measures_4_dataset($datasetNids, LOAD_ENTITY);
if (!empty($measureNodes)) {
foreach ( $measureNodes as $measure ) {
$export = new stdClass();
$export->id = (int) $measure->nid;
$export->title = $measure->title;
$export->sysname = get_node_field_value($measure,'field_measure_sysname');
$export->description = get_node_field_value($measure,'field_measure_desc');
$dataset = node_load(get_node_field_value($measure, 'field_measure_dataset', 0, 'nid'));
$export->dataset = get_node_field_value($dataset, 'field_dataset_uuid');
$function = get_node_field_value($measure,'field_measure_function');
foreach($datasetUuidMappings as $source => $uuid) {
$function = str_replace($source, $uuid, $function);
}
$export->function = $function;
$measures[] = $export;
}
}
}
$stream->set('measures',$measures);
}
protected function update(Import\ImportStream $stream, Import\ImportContext $context) {
$measures = $stream->get('measures');
if (empty($measures)) {
return;
}
$metamodel = data_controller_get_metamodel();
$this->datasets = $metamodel->datasets;
foreach ( $measures as $k => $measure ) {
foreach ( $this->datasets as $dataset ) {
if ( DatasetExportHelper::getExportDatasetName($dataset->name, $metamodel) == $measure->dataset ) {
$measure->dataset = $dataset->name;
$measure->function = str_replace(DatasetExportHelper::getExportDatasetName($dataset->name, $metamodel), $dataset->source, $measure->function);
$existingMeasureNode = $this->findExistingMeasure($measure->sysname);
if ( !$existingMeasureNode ) {
// create
$node = gd_measure_create($measure, $dataset);
if ( !empty($node->nid ) ) {
$measures[$k] = $node;
} else {
throw new Exception('Measure node creation failed');
}
} else {
$existingMeasureNode->title = $measure->title;
$existingMeasureNode->field_measure_desc[$existingMeasureNode->language][] = array('value' => $measure->description);
$existingMeasureNode->field_measure_dataset[$existingMeasureNode->language][] = array('value' => $measure->dataset);
$existingMeasureNode->field_measure_function[$existingMeasureNode->language][] = array('value' => $measure->function);
node_save($existingMeasureNode);
}
break;
}
}
}
$stream->set('measures', $measures);
}
