protected function prepareDatasets4Update(SystemTableMetaModelLoaderCallContext $callcontext, AbstractMetaModel $metamodel, DataSourceMetaData $datasource) {
foreach ($metamodel->datasets as $dataset) {
// the dataset should belong to the selected data source
if ($dataset->datasourceName !== $datasource->name) {
continue;
}
// the dataset has to be of type table
if (DatasetSourceTypeFactory::getInstance()->detectSourceType($dataset) !== TableDatasetSourceTypeHandler::SOURCE_TYPE) {
continue;
}
// whole dataset meta data was prepared using different method. There is nothing else needs to be done
if ($dataset->isComplete()) {
continue;
}
// for now supporting datasets without table owner
if (TableReferenceHelper::findTableOwner($dataset->source) != NULL) {
continue;
}
// there could be several datasets for one table
$tableAccessKey = $this->adjustTableName($dataset->source);
$callcontext->datasets[$tableAccessKey][] = $dataset;
}
}
