apps/workbench/app/models/collection.rb

   1 class Collection < ArvadosBase
   2   MD5_EMPTY = 'd41d8cd98f00b204e9800998ecf8427e'
   3
   4   # Return true if the given string is the locator of a zero-length blob
   5   def self.is_empty_blob_locator? locator
   6     !!locator.to_s.match("^#{MD5_EMPTY}(\\+.*)?\$")
   7   end
   8
   9   def self.goes_in_folders?
  10     true
  11   end
  12
  13   def content_summary
  14     ApplicationController.helpers.human_readable_bytes_html(total_bytes) + " " + super
  15   end
  16
  17   def total_bytes
  18     if files
  19       tot = 0
  20       files.each do |file|
  21         tot += file[2]
  22       end
  23       tot
  24     end
  25   end
  26
  27   def files_tree
  28     return [] if files.empty?
  29     tree = files.group_by { |file_spec| File.split(file_spec.first) }
  30     # Fill in entries for empty directories.
  31     tree.keys.map { |basedir, _| File.split(basedir) }.each do |splitdir|
  32       until tree.include?(splitdir)
  33         tree[splitdir] = []
  34         splitdir = File.split(splitdir.first)
  35       end
  36     end
  37     dir_to_tree = lambda do |dirname|
  38       # First list subdirectories, with their files inside.
  39       subnodes = tree.keys.select { |bd, td| (bd == dirname) and (td != '.') }
  40         .sort.flat_map do |parts|
  41         [parts + [nil]] + dir_to_tree.call(File.join(parts))
  42       end
  43       # Then extend that list with files in this directory.
  44       subnodes + tree[File.split(dirname)]
  45     end
  46     dir_to_tree.call('.')
  47   end
  48
  49   def attribute_editable? attr, *args
  50     false
  51   end
  52
  53   def self.creatable?
  54     false
  55   end
  56
  57   def provenance
  58     arvados_api_client.api "collections/#{self.uuid}/", "provenance"
  59   end
  60
  61   def used_by
  62     arvados_api_client.api "collections/#{self.uuid}/", "used_by"
  63   end
  64
  65 end