class Collection < ArvadosBase
+ MD5_EMPTY = 'd41d8cd98f00b204e9800998ecf8427e'
+
+ # Return true if the given string is the locator of a zero-length blob
+ def self.is_empty_blob_locator? locator
+ !!locator.to_s.match("^#{MD5_EMPTY}(\\+.*)?\$")
+ end
+
+ def self.goes_in_projects?
+ true
+ end
+
+ def content_summary
+ ApplicationController.helpers.human_readable_bytes_html(total_bytes) + " " + super
+ end
+
def total_bytes
if files
tot = 0
tot += file[2]
end
tot
+ else
+ 0
end
end
- def attribute_editable?(attr)
+ def files_tree
+ return [] if files.empty?
+ tree = files.group_by { |file_spec| File.split(file_spec.first) }
+ # Fill in entries for empty directories.
+ tree.keys.map { |basedir, _| File.split(basedir) }.each do |splitdir|
+ until tree.include?(splitdir)
+ tree[splitdir] = []
+ splitdir = File.split(splitdir.first)
+ end
+ end
+ dir_to_tree = lambda do |dirname|
+ # First list subdirectories, with their files inside.
+ subnodes = tree.keys.select { |bd, td| (bd == dirname) and (td != '.') }
+ .sort.flat_map do |parts|
+ [parts + [nil]] + dir_to_tree.call(File.join(parts))
+ end
+ # Then extend that list with files in this directory.
+ subnodes + tree[File.split(dirname)]
+ end
+ dir_to_tree.call('.')
+ end
+
+ def attribute_editable? attr, *args
+ false
+ end
+
+ def self.creatable?
false
end
def provenance
- $arvados_api_client.api "collections/#{self.uuid}/", "provenance"
+ arvados_api_client.api "collections/#{self.uuid}/", "provenance"
+ end
+
+ def used_by
+ arvados_api_client.api "collections/#{self.uuid}/", "used_by"
end
+
end