Bagit Exporter

Exporting

• The Bulkrax exporter will use the same field mappings that were established in the import.
• We should always configure the export for metadata and files to maintain data integrity.

Include Thumbnails

If include_thumbnails? is checked on the exporter form and the work has a thumbnail on it, a user will see a thumbnail_file column in the exported metadata.csv that references a file found in the data directory, of the exported bag.

Currently this setting is not capable of round tripping.

Round Tripping

The concept of round tripping is that we can export one or more bags in a single zip file, then import the same zip file without the files being duplicated. If data was changed on the re-imported csv file, like the title, that will be updated though.

Downloadable files

A download of the zip file that was created on export is accessible from the index and exporter show pages.

• Each zip file will contain one or more bags whose structure mimics that of an imported bag. The exception being, it will be exported with both .csv and .nt metadata files.
• Each bag will contain only one work, its child file sets and parent collections