SystemVersionDownloader¶

The class SystemVersionDownloader (found within SystemVersionDownloader.php) is used for downloading files of specific system version in a specific corpus release, from the underlying file system. This class is very similar to the SystemDownloader class, and, to a lesser extent, to the MetadataExporter class. The class offers only one function. Note that this is just a basic information regarding the class - for more information, see the relevant source file.

SystemVersionDownloader::downloadSystemVersions(integer $corpusId, array[integer] $systemVersionIds)¶

This function tries to locate and send to user the compressed versions of all system versions with given IDs, in a corpus release with given ID. In another words, it tries to locate all specified system versions in the file system, packs everything found in their compressed folders into a ZIP archive and sends the resulting archive to the user. Any systems or system versions that are not found on the file system are skipped.

warning. Note: This function relies on the existence of the compressed folder within each system version. If the compressed folder doesn't exist or is empty, the relevant system version will be skipped.