Bulk Operation

MDL-33893 references mix addressing of file_storage and file_browser which breaks the concept of file-browser virtual files

MDL-33893 cache_file should support something like etag or ifmodifiedsince to lower traffic from repo site

MDL-33893 potential race condition in cache_file and interrupted dowload problems

MDL-33893 repository::sync_external_file uses undefined variables $handle and $content

MDL-33893 incorrect use of empty() in stored_file::set_synchronized()

MDL-33893 stored_file::send_file works only for repository files

MDL-33893 delete() method in stored file is slower

MDL-33893 rename() method in stored_file may try to change file to dir and vice versa

MDL-33893 pathnamehash should be calculated/updated in stored_file::update()

MDL-33893 update() method in stored_file does not set correct file size

MDL-33893 update() method in stored_file does not reclaim disk space when modifying content

MDL-33893 public set_size() in stored file does not make much sense

MDL-33893 stored_file constructor does unnecessary DB query and throws exception for faulty files

MDL-33893 stored_file constructor does not validate $file_record properties