apps/workbench/app/models/collection.rb

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